Atmel AVR

Registry:

https://registry.platformio.org/platforms/platformio/atmelavr

Configuration:

platform = platformio/atmelavr

Atmel AVR 8-bit MCUs deliver a unique combination of performance, power efficiency and design flexibility. Optimized to speed time to market-and easily adapt to new ones-they are based on the industry’s most code-efficient architecture for C and assembly programming

For more detailed information please visit vendor site.

Configuration

Upload using Programmer

In the case of external programmers, it’s easy to brick a board simply by specifying incorrect upload flags. It’s highly recommended to use the upload_command option that gives the full control over flags used for uploading.

Note

The list of supported programmers available in avrdude is accessible via the avrdude -c ? command

Configuration for the programmers:

• AVRISP

  [env:program_via_AVRISP]
  platform = atmelavr
  framework = arduino
  upload_protocol = custom
  upload_port = SERIAL_PORT_HERE
  upload_speed = 19200
  upload_flags =
      -C
      ; use "tool-avrdude-megaavr" for the atmelmegaavr platform
      ${platformio.packages_dir}/tool-avrdude/avrdude.conf
      -p
      $BOARD_MCU
      -P
      $UPLOAD_PORT
      -b
      $UPLOAD_SPEED
      -c
      stk500v1
  upload_command = avrdude $UPLOAD_FLAGS -U flash:w:$SOURCE:i
  

• AVRISP mkII

  [env:program_via_AVRISP_mkII]
  platform = atmelavr
  framework = arduino
  upload_protocol = custom
  upload_port = usb
  upload_flags =
      -C
      ; use "tool-avrdude-megaavr" for the atmelmegaavr platform
      ${platformio.packages_dir}/tool-avrdude/avrdude.conf
      -p
      $BOARD_MCU
      -P
      $UPLOAD_PORT
      -c
      stk500v2
  upload_command = avrdude $UPLOAD_FLAGS -U flash:w:$SOURCE:i
  

• USBtinyISP

  [env:myenv]
  platform = atmelavr
  framework = arduino
  upload_protocol = usbtiny
  
  [env:program_via_USBtinyISP]
  platform = atmelavr
  framework = arduino
  upload_protocol = custom
  upload_flags =
      -C
      ; use "tool-avrdude-megaavr" for the atmelmegaavr platform
      ${platformio.packages_dir}/tool-avrdude/avrdude.conf
      -p
      $BOARD_MCU
      -c
      usbtiny
  upload_command = avrdude $UPLOAD_FLAGS -U flash:w:$SOURCE:i
  

• DiamexISP

  [env:program_via_DiamexISP]
  platform = atmelavr
  framework = arduino
  upload_protocol = avrispv2
  upload_port = SERIAL_PORT_HERE
  upload_speed = 19200
  upload_flags =
      -C
      ; use "tool-avrdude-megaavr" for the atmelmegaavr platform
      ${platformio.packages_dir}/tool-avrdude/avrdude.conf
      -p
      $BOARD_MCU
      -P
      $UPLOAD_PORT
      -b
      $UPLOAD_SPEED
      -c
      stk500v2
  upload_command = avrdude $UPLOAD_FLAGS -U flash:w:$SOURCE:i
  

• Arduino as ISP

  [env:program_via_ArduinoISP]
  platform = atmelavr
  framework = arduino
  upload_protocol = custom
  upload_port = SERIAL_PORT_HERE
  upload_speed = 19200
  upload_flags =
      -C
      ; use "tool-avrdude-megaavr" for the atmelmegaavr platform
      ${platformio.packages_dir}/tool-avrdude/avrdude.conf
      -p
      $BOARD_MCU
      -P
      $UPLOAD_PORT
      -b
      $UPLOAD_SPEED
      -c
      stk500v1
  upload_command = avrdude $UPLOAD_FLAGS -U flash:w:$SOURCE:i
  

• USBasp

  [env:program_via_USBasp]
  platform = atmelavr
  framework = arduino
  upload_protocol = custom
  upload_port = usb
  upload_flags =
      -C
      ; use "tool-avrdude-megaavr" for the atmelmegaavr platform
      ${platformio.packages_dir}/tool-avrdude/avrdude.conf
      -p
      $BOARD_MCU
      -P
      $UPLOAD_PORT
      -c
      usbasp
  upload_command = avrdude $UPLOAD_FLAGS -U flash:w:$SOURCE:i
  

• Parallel Programmer

  [env:program_via_PP]
  platform = atmelavr
  framework = arduino
  upload_protocol = custom
  upload_flags =
      -C
      ; use "tool-avrdude-megaavr" for the atmelmegaavr platform
      ${platformio.packages_dir}/tool-avrdude/avrdude.conf
      -p
      $BOARD_MCU
      -c
      dapa
      -F
  upload_command = avrdude $UPLOAD_FLAGS -U flash:w:$SOURCE:i
  

• Bus Pirate as ISP

  [env:program_via_BP]
  platform = atmelavr
  framework = arduino
  upload_protocol = custom
  upload_port = SERIAL_PORT_HERE
  upload_speed = 115200
  upload_flags =
      -C
      ; use "tool-avrdude-megaavr" for the atmelmegaavr platform
      ${platformio.packages_dir}/tool-avrdude/avrdude.conf
      -p
      $BOARD_MCU
      -P
      $UPLOAD_PORT
      -b
      $UPLOAD_SPEED
      -c
      buspirate
  upload_command = avrdude $UPLOAD_FLAGS -U flash:w:$SOURCE:i
  

Upload EEPROM data

To upload EEPROM data (from EEMEM directive) you need to use uploadeep target instead upload for pio run --target command. For example, pio run -t uploadeep.

Erase chip before programming

In some cases erasing chip memory is a mandatory procedure before uploading bootloader or setting fuses. AVRDUDE provides a special flag -e that causes a chip erase to be executed. This will reset the contents of the flash ROM and EEPROM to the value 0xff, and clear all lock bits. The easiest way to use it is to add this flag via the upload_flags option:

[env:uno]
platform = atmelavr
framework = arduino
board = uno
upload_flags =
  -e

Fuses programming

PlatformIO has a built-in target called fuses for setting fuse bits. The default fuse bits are predefined in the board manifest file in the fuses section. For example, fuses section for Arduino Uno board. To set fuse bits you need to use target fuses with pio run --target command.

Custom fuses

Custom fuse values and upload flags (based on upload protocol) should be specified in “platformio.ini” (Project Configuration File). The lfuse and hfuse bits are mandatory, efuse is optional and not supported by all targets. An example of setting custom fuses for uno board:

[env:custom_fuses]
platform = atmelavr
framework = arduino
board = uno
upload_protocol = stk500v1
upload_speed = 19200
board_fuses.lfuse = 0xAA
board_fuses.hfuse = 0xBB
board_fuses.efuse = 0xCC
upload_flags =
    -PCOM15
    -b$UPLOAD_SPEED
    -e

MiniCore, MegaCore, MightyCore, MajorCore and MicroCore

MiniCore, MegaCore, MightyCore, MajorCore and MicroCore support dynamic fuses generation. Generated values are based on the following parameters:

Parameter	Description	Default value
board_build.f_cpu	Specifies the clock frequencies in Hz. Used to determine what oscillator option to choose. A capital L has to be added to the end of the frequency number.	16000000L
board_hardware.oscillator	Specifies which oscillator is used internal or external. Internal oscillator only works with f_cpu values 8000000L and 1000000L	external
board_hardware.uart	Specifies the hardware UART port used for serial upload. can be uart0, uart1, uart2 or uart3 depending on the target. Use no_bootloader if you’re not using a bootloader for serial upload.	uart0
board_hardware.bod	Specifies the hardware brown-out detection. Use disabled to disable brown-out detection.	2.7v
board_hardware.eesave	Specifies if the EEPROM memory should be retained when uploading using a programmer. Use no to disable	yes
board_hardware.ckout	Enables system clock output on targets that have this feature. The system clock will be output on a dedicated output pin. See the target datasheet for more information. Use Yes to enable	no
board_hardware.jtagen	Enables the JTAG programming and debugging interface for targets that supports JTAG. Use Yes to enable	no
board_hardware.cfd	Enables clock failure detection. Note that this feature is only available on ATmega324PB and ATmega328PB. Use Yes to enable CFD	no

Valid BOD values:

ATmega8, ATmega8515, ATmega8535/16/32, ATmega64/128	AT90CAN32/64/128	Other targets
4.0v	4.1v	4.3v
2.7v	4.0v	2.7v
disabled	3.9v	1.8v
	3.8v	disabled
	2.7v
	2.6v
	2.5v
	disabled

Hardware configuration example:

[env:custom_fuses]
platform = atmelavr
framework = arduino
board = ATmega32

board_build.f_cpu = 1000000L
board_hardware.uart = uart0
board_hardware.oscillator = internal
board_hardware.bod = 2.7v
board_hardware.eesave = no

upload_protocol = usbasp
upload_flags =
  -Pusb

Overriding default fuses command

PlatformIO splits the command for programming fuses in the following overridable parts:

Variable	Description	Examples
FUSESUPLOADER	The tool used for setting fuses	By default avrdude is used
FUSESUPLOADERFLAGS	General command-line options that control uploader’s behavior	-D, -V, -P COM1, -C atmelice_isp, -b 115200
FUSESFLAGS	A list of flags specific to fuses settings	-Ulock:w:0x2F:m, -Uefuse:w:0xCB:m, -Ulfuse:w:0xFF:m
SETFUSESCMD	Variable that holds the final command compiled from variables above	$FUSESUPLOADER $FUSESUPLOADERFLAGS $UPLOAD_FLAGS $FUSESFLAGS

If for any reason default parameters are not suitable for your project, you can override the entire upload command or any particular part of that command using an extra script, for example, you can override only fuses values:

Import("env")

env.Replace(
    FUSESFLAGS=[
        "-Uhfuse:w:0xAA:m",
        "-Uefuse:w:0xBB:m",
        "-Ulfuse:w:0xCC:m",
        "-Ulock:w:0xDD:m"
    ]
)

Or override a specific uploader flag:

Import("env")

env.Append(
    FUSESUPLOADERFLAGS=[
        "-V",
        "-D"
    ]
)

It’s also possible to completely override the entire upload command:

Import("env")

env.Replace(
    FUSESUPLOADERFLAGS=[
        # use "tool-avrdude-megaavr" for the atmelmegaavr platform
        "-C", "$PROJECT_PACKAGES_DIR/tool-avrdude/avrdude.conf",
        "-p", "$BOARD_MCU",
        "-c", "atmelice_isp",
        "-e", "-v"
    ],
    SETFUSESCMD="avrdude $FUSESUPLOADERFLAGS -Ulock:w:0x0F:m",
)

Bootloader programming

PlatformIO has a built-in target called bootloader for flashing bootloaders. The default bootloader image and corresponding fuse bits are predefined in the board manifest file in the bootloader section, for example, Arduino Uno. To upload a bootloader image you need to use target bootloader with pio run --target command.

Custom bootloader

Custom bootloader and accompanying fuses should be specified in “platformio.ini” (Project Configuration File). If lock_bits and unlock_bits are not set then the default values 0x0F and 0x3F are used accordingly. An example of setting custom bootloader for uno board:

[env:uno]
platform = atmelavr
framework = arduino
board = uno

board_bootloader.file = /path/to/custom/bootloader.hex
board_bootloader.lfuse = 0xFF
board_bootloader.hfuse = 0xDE
board_bootloader.efuse = 0xFD
board_bootloader.lock_bits = 0x0F
board_bootloader.unlock_bits = 0x3F

MiniCore, MegaCore, MightyCore and MajorCore have a wide variety of precompiled bootloaders. Bootloader binaries are dynamically selected according to the hardware parameters f_cpu, oscillator, uart and upload_speed. For a complete table with all available baud rates, see the Optiboot flash repo. Here is a table with recommended baud rates for different clock frequencies:

Frequency	Oscillator type	Recommended upload speed
20000000L	external	115200
18432000L	external	115200
16000000L	external	115200
14745600L	external	115200
12000000L	external	57600
11059200L	external	115200
8000000L	external/internal	57600/38400
7372800L	external	115200
4000000L	external	9600
3686400L	external	115200
2000000L	external	9600
1843200L	external	115200
1000000L	external/internal	9600

Overriding default bootloader command

PlatformIO splits the command for programming bootloader in the following overridable parts:

Variable	Description	Examples
BOOTUPLOADER	The tool used for programming bootloader image	By default avrdude is used
BOOTUPLOADERFLAGS	General command-line options that control uploader’s behavior	-D, -V, -P COM1, -C atmelice_isp, -b 115200
BOOTFLAGS	A list of flags specific to bootloader settings	-Uflash:w:/path/to/bootlader_image:i, -Ulock:w:0x2F:m
UPLOADBOOTCMD	Variable that holds the final command compiled from variables above	$BOOTUPLOADER $BOOTUPLOADERFLAGS $UPLOAD_FLAGS $BOOTFLAGS

If for any reason default parameters are not suitable for your project, you can override the entire upload command or any particular part of that command using an extra script, for example, you can override only fuses values:

Import("env")

bootloader_path = "/path/to/custom/bootloader.hex"

env.Replace(
    BOOTFLAGS=[
        "-Uflash:w:%s:i" % bootloader_path,
        "-Ulock:w:0xFF:m"
    ]
)

Or override a specific uploader flag:

Import("env")

env.Append(
    BOOTUPLOADERFLAGS=[
        "-e", "-p", "/dev/cu.usbserial-1414302"
    ]
)

It’s also possible to completely override the entire upload command:

Import("env")

env.Replace(
    BOOTUPLOADERFLAGS=[
        # use "tool-avrdude-megaavr" for the atmelmegaavr platform
        "-C", "$PROJECT_PACKAGES_DIR/tool-avrdude/avrdude.conf",
        "-p", "$BOARD_MCU",
        "-c", "atmelice_isp"
    ],
    UPLOADBOOTCMD="avrdude $BOOTUPLOADERFLAGS -Ulock:w:0x0F:m",
)

Examples

Examples are listed from Atmel AVR development platform repository:

• arduino-blink

• assembly-blink

• native-blink

• arduino-own-src_dir

• engduino-magnetometer

• digitstump-mouse

• arduino-internal-libs

• arduino-external-libs

Debugging

Debugging - “1-click” solution for debugging with a zero configuration.

Tools & Debug Probes

Supported debugging tools are listed in “Debug” column. For more detailed information, please scroll table by horizontal. You can switch between debugging Tools & Debug Probes using debug_tool option in “platformio.ini” (Project Configuration File).

Warning

You will need to install debug tool drivers depending on your system. Please click on compatible debug tool below for the further instructions.

External Debug Tools

Boards listed below are compatible with Debugging but DEPEND ON external debug probe. They ARE NOT READY for debugging. Please click on board name for the further details.

Name	MCU	Frequency	Flash	RAM
ATmega128/A	ATMEGA128	16MHz	128KB	4KB
ATmega1280	ATMEGA1280	16MHz	128KB	8KB
ATmega1281	ATMEGA1281	16MHz	128KB	8KB
ATmega1284	ATMEGA1284	16MHz	128KB	16KB
ATmega1284P	ATMEGA1284P	16MHz	128KB	16KB
ATmega16	ATMEGA16	16MHz	16KB	1KB
ATmega164P/PA	ATMEGA164P	16MHz	16KB	1KB
ATmega168/A	ATMEGA168	16MHz	16KB	1KB
ATmega168P/PA	ATMEGA168P	16MHz	16KB	1KB
ATmega2560	ATMEGA2560	16MHz	256KB	8KB
ATmega324A	ATMEGA324A	16MHz	32KB	2KB
ATmega324P	ATMEGA324P	16MHz	32KB	2KB
ATmega324PA	ATMEGA324PA	16MHz	32KB	2KB
ATmega328	ATMEGA328	16MHz	32KB	2KB
ATmega328P/PA	ATMEGA328P	16MHz	32KB	2KB
ATmega48/A	ATMEGA48	16MHz	4KB	512B
ATmega48P/PA	ATMEGA48P	16MHz	4KB	512B
ATmega644P/PA	ATMEGA644P	16MHz	64KB	4KB
ATmega8/A	ATMEGA8	16MHz	8KB	1KB
ATmega88/A	ATMEGA88	16MHz	8KB	1KB
ATmega88P/PA	ATMEGA88P	16MHz	8KB	1KB
ATtiny13	ATTINY13	9MHz	1KB	64B
ATtiny13A	ATTINY13A	9MHz	1KB	64B
Adafruit Bluefruit Micro	ATMEGA32U4	8MHz	28KB	2.50KB
Adafruit Circuit Playground Classic	ATMEGA32U4	8MHz	28KB	2.50KB
Adafruit Feather 328P	ATMEGA328P	8MHz	31.50KB	2KB
Adafruit Feather 32u4	ATMEGA32U4	8MHz	28KB	2.50KB
Adafruit Flora	ATMEGA32U4	8MHz	28KB	2.50KB
Adafruit Gemma	ATTINY85	8MHz	8KB	512B
Adafruit ItsyBitsy 3V/8MHz	ATMEGA32U4	8MHz	28KB	2.50KB
Adafruit ItsyBitsy 5V/16MHz	ATMEGA32U4	16MHz	28KB	2.50KB
Adafruit Metro	ATMEGA328P	16MHz	31.50KB	2KB
Adafruit Pro Trinket 3V/12MHz (FTDI)	ATMEGA328P	12MHz	28KB	2KB
Adafruit Pro Trinket 3V/12MHz (USB)	ATMEGA328P	12MHz	28KB	2KB
Adafruit Pro Trinket 5V/16MHz (FTDI)	ATMEGA328P	16MHz	28KB	2KB
Adafruit Pro Trinket 5V/16MHz (USB)	ATMEGA328P	16MHz	28KB	2KB
Adafruit Trinket 3V/8MHz	ATTINY85	8MHz	8KB	512B
Adafruit Trinket 5V/16MHz	ATTINY85	16MHz	8KB	512B
Alorium Hinj	ATMEGA328P	16MHz	31.50KB	2KB
Alorium Sno	ATMEGA328P	16MHz	31.50KB	2KB
Alorium XLR8	ATMEGA328P	16MHz	31.50KB	2KB
Anarduino MiniWireless	ATMEGA328P	16MHz	31.50KB	2KB
Arduboy	ATMEGA32U4	16MHz	28KB	2.50KB
Arduboy DevKit	ATMEGA32U4	16MHz	28KB	2.50KB
Arduino BT ATmega168	ATMEGA168	16MHz	14KB	1KB
Arduino BT ATmega328	ATMEGA328P	16MHz	28KB	2KB
Arduino Duemilanove or Diecimila ATmega168	ATMEGA168	16MHz	14KB	1KB
Arduino Duemilanove or Diecimila ATmega328	ATMEGA328P	16MHz	30KB	2KB
Arduino Esplora	ATMEGA32U4	16MHz	28KB	2.50KB
Arduino Ethernet	ATMEGA328P	16MHz	31.50KB	2KB
Arduino Fio	ATMEGA328P	8MHz	30KB	2KB
Arduino Industrial 101	ATMEGA32U4	16MHz	28KB	2.50KB
Arduino Leonardo	ATMEGA32U4	16MHz	28KB	2.50KB
Arduino Leonardo ETH	ATMEGA32U4	16MHz	28KB	2.50KB
Arduino LilyPad ATmega168	ATMEGA168	8MHz	14KB	1KB
Arduino LilyPad ATmega328	ATMEGA328P	8MHz	30KB	2KB
Arduino LilyPad USB	ATMEGA32U4	8MHz	28KB	2.50KB
Arduino Mega ADK	ATMEGA2560	16MHz	248KB	8KB
Arduino Mega or Mega 2560 ATmega1280	ATMEGA1280	16MHz	124KB	8KB
Arduino Mega or Mega 2560 ATmega2560 (Mega 2560)	ATMEGA2560	16MHz	248KB	8KB
Arduino Micro	ATMEGA32U4	16MHz	28KB	2.50KB
Arduino Mini ATmega168	ATMEGA168	16MHz	14KB	1KB
Arduino Mini ATmega328	ATMEGA328P	16MHz	28KB	2KB
Arduino NG or older ATmega168	ATMEGA168	16MHz	14KB	1KB
Arduino NG or older ATmega8	ATMEGA8	16MHz	7KB	1KB
Arduino Nano ATmega168	ATMEGA168	16MHz	14KB	1KB
Arduino Nano ATmega328	ATMEGA328P	16MHz	30KB	2KB
Arduino Nano ATmega328 (New Bootloader)	ATMEGA328P	16MHz	30KB	2KB
Arduino Pro or Pro Mini ATmega168 (3.3V, 8 MHz)	ATMEGA168	8MHz	14KB	1KB
Arduino Pro or Pro Mini ATmega168 (5V, 16 MHz)	ATMEGA168	16MHz	14KB	1KB
Arduino Pro or Pro Mini ATmega328 (3.3V, 8 MHz)	ATMEGA328P	8MHz	30KB	2KB
Arduino Pro or Pro Mini ATmega328 (5V, 16 MHz)	ATMEGA328P	16MHz	30KB	2KB
Arduino Robot Control	ATMEGA32U4	16MHz	28KB	2.50KB
Arduino Robot Motor	ATMEGA32U4	16MHz	28KB	2.50KB
Arduino Uno	ATMEGA328P	16MHz	31.50KB	2KB
Arduino Uno Mini	ATMEGA328P	16MHz	31.50KB	2KB
Arduino Yun	ATMEGA32U4	16MHz	28KB	2.50KB
Arduino Yun Mini	ATMEGA32U4	16MHz	28KB	2.50KB
BQ ZUM BT-328	ATMEGA328P	16MHz	28KB	2KB
BitWizard Raspduino	ATMEGA328P	16MHz	30KB	2KB
Controllino Maxi	ATMEGA2560	16MHz	248KB	8KB
Controllino Maxi Automation	ATMEGA2560	16MHz	248KB	8KB
Controllino Mega	ATMEGA2560	16MHz	248KB	8KB
Controllino Mini	ATMEGA328P	16MHz	31.50KB	2KB
Digispark USB	ATTINY85	16MHz	5.87KB	512B
Engduino 3	ATMEGA32U4	8MHz	28KB	2.50KB
EnviroDIY Mayfly	ATMEGA1284P	8MHz	127KB	16KB
FYSETC F6 V1.3	ATMEGA2560	16MHz	252KB	8KB
Generic ATtiny2313	ATTINY2313	8MHz	2KB	128B
Generic ATtiny24	ATTINY24	8MHz	2KB	128B
Generic ATtiny25	ATTINY25	8MHz	2KB	128B
Generic ATtiny4313	ATTINY4313	8MHz	4KB	256B
Generic ATtiny44	ATTINY44	8MHz	4KB	256B
Generic ATtiny45	ATTINY45	8MHz	4KB	256B
Generic ATtiny84	ATTINY84	8MHz	8KB	512B
Generic ATtiny85	ATTINY85	8MHz	8KB	512B
LightBlue Bean	ATMEGA328P	8MHz	31.50KB	2KB
LightBlue Bean+	ATMEGA328P	16MHz	31.50KB	2KB
LightUp	ATMEGA32U4	8MHz	28KB	2.50KB
Linino One	ATMEGA32U4	16MHz	28KB	2.50KB
LinkIt Smart 7688 Duo	ATMEGA32U4	8MHz	28KB	2.50KB
LoRa32u4II (868-915MHz)	ATMEGA32U4	8MHz	28KB	2.50KB
LowPowerLab MightyHat	ATMEGA328P	16MHz	31KB	2KB
LowPowerLab Moteino	ATMEGA328P	16MHz	31.50KB	2KB
LowPowerLab Moteino (8Mhz)	ATMEGA328P	8MHz	31.50KB	2KB
LowPowerLab MoteinoMEGA	ATMEGA1284P	16MHz	127KB	16KB
Microduino Core (Atmega168PA@16M,5V)	ATMEGA168P	16MHz	15.50KB	1KB
Microduino Core (Atmega168PA@8M,3.3V)	ATMEGA168P	8MHz	15.50KB	1KB
Microduino Core (Atmega328P@16M,5V)	ATMEGA328P	16MHz	31.50KB	2KB
Microduino Core (Atmega328P@8M,3.3V)	ATMEGA328P	8MHz	31.50KB	2KB
Microduino Core USB (ATmega32U4@16M,5V)	ATMEGA32U4	16MHz	28KB	2.50KB
Microduino Core+ (ATmega1284P@16M,5V)	ATMEGA1284P	16MHz	127KB	16KB
Microduino Core+ (ATmega1284P@8M,3.3V)	ATMEGA1284P	8MHz	127KB	16KB
Microduino Core+ (Atmega644PA@16M,5V)	ATMEGA644P	16MHz	63KB	4KB
Microduino Core+ (Atmega644PA@8M,3.3V)	ATMEGA644P	8MHz	63KB	4KB
OpenEnergyMonitor emonPi	ATMEGA328P	16MHz	30KB	2KB
Original Prusa i3 MK3 Multi Material 2.0 Upgrade	ATMEGA32U4	16MHz	28KB	2.50KB
PanStamp AVR	ATMEGA328P	8MHz	31.50KB	2KB
Pololu A-Star 32U4	ATMEGA32U4	16MHz	28KB	2.50KB
Prusa RAMBo	ATMEGA2560	16MHz	252KB	8KB
Quirkbot	ATMEGA32U4	8MHz	28KB	2.50KB
RedBearLab Blend	ATMEGA32U4	16MHz	28KB	2.50KB
RedBearLab Blend Micro 3.3V/16MHz (overclock)	ATMEGA32U4	16MHz	28KB	2.50KB
RedBearLab Blend Micro 3.3V/8MHz	ATMEGA32U4	8MHz	28KB	2.50KB
RepRap RAMBo	ATMEGA2560	16MHz	252KB	8KB
SODAQ GaLoRa	ATMEGA1284P	8MHz	127KB	16KB
SODAQ Mbili	ATMEGA1284P	8MHz	127KB	16KB
SODAQ Moja	ATMEGA328P	8MHz	31.50KB	2KB
SODAQ Ndogo	ATMEGA1284P	8MHz	127KB	16KB
SODAQ Tatu	ATMEGA1284P	8MHz	127KB	16KB
Sanguino ATmega1284p (16MHz)	ATMEGA1284P	16MHz	127KB	16KB
Sanguino ATmega1284p (8MHz)	ATMEGA1284P	8MHz	127KB	16KB
Sanguino ATmega644 or ATmega644A (16 MHz)	ATMEGA644	16MHz	63KB	4KB
Sanguino ATmega644 or ATmega644A (8 MHz)	ATMEGA644	8MHz	63KB	4KB
Sanguino ATmega644P or ATmega644PA (16 MHz)	ATMEGA644P	16MHz	63KB	4KB
Sanguino ATmega644P or ATmega644PA (8 MHz)	ATMEGA644P	8MHz	63KB	4KB
Seeeduino	ATMEGA328P	16MHz	31.50KB	2KB
SparkFun ATmega128RFA1 Dev Board	ATMEGA128RFA1	16MHz	124KB	16KB
SparkFun Digital Sandbox	ATMEGA328P	8MHz	31.50KB	2KB
SparkFun Fio V3 3.3V/8MHz	ATMEGA32U4	8MHz	28KB	2.50KB
SparkFun Makey Makey	ATMEGA32U4	16MHz	28KB	2.50KB
SparkFun Mega Pro 3.3V/8MHz	ATMEGA2560	8MHz	252KB	8KB
SparkFun Mega Pro 5V/16MHz	ATMEGA2560	16MHz	248KB	8KB
SparkFun Mega Pro Mini 3.3V	ATMEGA2560	8MHz	252KB	8KB
SparkFun MicroView	ATMEGA328P	16MHz	31.50KB	2KB
SparkFun Pro Micro 3.3V/8MHz	ATMEGA32U4	8MHz	28KB	2.50KB
SparkFun Pro Micro 5V/16MHz	ATMEGA32U4	16MHz	28KB	2.50KB
SparkFun Qduino Mini	ATMEGA32U4	8MHz	28KB	2.50KB
SparkFun RedBoard	ATMEGA328P	16MHz	31.50KB	2KB
SparkFun Serial 7-Segment Display	ATMEGA328P	8MHz	31.50KB	2KB
SpellFoundry Sleepy Pi 2	ATMEGA328P	8MHz	30KB	2KB
Talk2 Whisper Node	ATMEGA328P	16MHz	31.50KB	2KB
The Things Uno	ATMEGA32U4	16MHz	28KB	2.50KB
TinyCircuits TinyDuino Processor Board	ATMEGA328P	8MHz	30KB	2KB
TinyCircuits TinyLily Mini Processor	ATMEGA328P	8MHz	30KB	2KB
USBasp stick	ATMEGA8	12MHz	8KB	1KB
Wicked Device WildFire V2	ATMEGA1284P	16MHz	120.00KB	16KB
Wicked Device WildFire V3	ATMEGA1284P	16MHz	127KB	16KB
ftDuino	ATMEGA32U4	16MHz	28KB	2.50KB
nicai-systems BOB3 coding bot	ATMEGA88	8MHz	8KB	1KB
nicai-systems NIBO 2 robot	ATMEGA128	16MHz	128KB	4KB
nicai-systems NIBO burger robot	ATMEGA16	15MHz	16KB	1KB
nicai-systems NIBO burger robot with Tuning Kit	ATMEGA1284P	20MHz	128KB	16KB
nicai-systems NIBObee robot	ATMEGA16	15MHz	16KB	1KB
nicai-systems NIBObee robot with Tuning Kit	ATMEGA1284P	20MHz	128KB	16KB
ubIQio Ardhat	ATMEGA328P	16MHz	31.50KB	2KB

Stable and upstream versions

You can switch between stable releases of Atmel AVR development platform and the latest upstream version using platform option in “platformio.ini” (Project Configuration File) as described below.

Stable

; Latest stable version, NOT recommended
; Pin the version as shown below
[env:latest_stable]
platform = atmelavr
board = ...

; Specific version
[env:custom_stable]
platform = atmelavr@x.y.z
board = ...

Upstream

[env:upstream_develop]
platform = https://github.com/platformio/platform-atmelavr.git
board = ...

Packages

Name	Description
framework-arduino-avr	The official Arduino Wiring-based Framework for Microchip AVR microcontrollers
framework-arduino-avr-attiny	Arduino Wiring-based Framework (ATtinyCore)
framework-arduino-avr-bean	Arduino Wiring-based Framework for Microchip AVR microcontrollers (Bean Core)
framework-arduino-avr-core13	Arduino Wiring-based Framework for Microchip AVR microcontrollers (Core13)
framework-arduino-avr-digistump	Arduino Wiring-based Framework for Microchip AVR microcontrollers (Digistump Core)
framework-arduino-avr-dwenguino	Arduino Wiring-based Framework for Microchip AVR microcontrollers (Dwenguino Core)
framework-arduino-avr-majorcore	Arduino Wiring-based Framework for Microchip AVR microcontrollers (MajorCore)
framework-arduino-avr-megacore	Arduino Wiring-based Framework for Microchip AVR microcontrollers (MegaCore)
framework-arduino-avr-microcore	Arduino Wiring-based Framework for Microchip AVR microcontrollers (MicroCore)
framework-arduino-avr-mightycore	Arduino Wiring-based Framework for Microchip AVR microcontrollers (MightyCore)
framework-arduino-avr-minicore	Arduino Wiring-based Framework for Microchip AVR microcontrollers (MiniCore)
framework-arduino-avr-nicai	Arduino Wiring-based Framework for Microchip AVR microcontrollers (Nicai Core)
framework-arduino-avr-panstamp	Arduino Wiring-based Framework for Microchip AVR microcontrollers (Panstamp Core)
framework-arduino-avr-prusa_rambo	Arduino Wiring-based Framework for Microchip AVR microcontrollers (Prusa Rambo Core)
tool-avrdude	AVRDUDE is a utility to download/upload/manipulate the ROM and EEPROM contents of AVR microcontrollers
tool-micronucleus	ATTiny usb bootloader with a strong emphasis on bootloader compactness
tool-simavr	simavr is a lean, mean and hackable AVR simulator
toolchain-atmelavr	GCC Toolchain for Microchip AVR microcontrollers

Warning

Linux Users:

• Install “udev” rules 99-platformio-udev.rules

• Raspberry Pi users, please read this article Enable serial port on Raspberry Pi.

Windows Users:

Please check that you have a correctly installed USB driver from board manufacturer

Frameworks

Name	Description
Arduino	Arduino Wiring-based Framework allows writing cross-platform software to control devices attached to a wide range of Arduino boards to create all kinds of creative coding, interactive objects, spaces or physical experiences.

Boards

Note

• You can list pre-configured boards by pio boards command

• For more detailed board information please scroll the tables below by horizontally.

Adafruit

Name	Debug	MCU	Frequency	Flash	RAM
Adafruit Bluefruit Micro	External	ATMEGA32U4	8MHz	28KB	2.50KB
Adafruit Circuit Playground Classic	External	ATMEGA32U4	8MHz	28KB	2.50KB
Adafruit Feather 328P	External	ATMEGA328P	8MHz	31.50KB	2KB
Adafruit Feather 32u4	External	ATMEGA32U4	8MHz	28KB	2.50KB
Adafruit Flora	External	ATMEGA32U4	8MHz	28KB	2.50KB
Adafruit Gemma	External	ATTINY85	8MHz	8KB	512B
Adafruit ItsyBitsy 3V/8MHz	External	ATMEGA32U4	8MHz	28KB	2.50KB
Adafruit ItsyBitsy 5V/16MHz	External	ATMEGA32U4	16MHz	28KB	2.50KB
Adafruit Metro	External	ATMEGA328P	16MHz	31.50KB	2KB
Adafruit Pro Trinket 3V/12MHz (FTDI)	External	ATMEGA328P	12MHz	28KB	2KB
Adafruit Pro Trinket 3V/12MHz (USB)	External	ATMEGA328P	12MHz	28KB	2KB
Adafruit Pro Trinket 5V/16MHz (FTDI)	External	ATMEGA328P	16MHz	28KB	2KB
Adafruit Pro Trinket 5V/16MHz (USB)	External	ATMEGA328P	16MHz	28KB	2KB
Adafruit Trinket 3V/8MHz	External	ATTINY85	8MHz	8KB	512B
Adafruit Trinket 5V/16MHz	External	ATTINY85	16MHz	8KB	512B

Alorium Technology

Name	Debug	MCU	Frequency	Flash	RAM
Alorium Hinj	External	ATMEGA328P	16MHz	31.50KB	2KB
Alorium Sno	External	ATMEGA328P	16MHz	31.50KB	2KB
Alorium XLR8	External	ATMEGA328P	16MHz	31.50KB	2KB

Anarduino

Name	Debug	MCU	Frequency	Flash	RAM
Anarduino MiniWireless	External	ATMEGA328P	16MHz	31.50KB	2KB

Arduboy

Name	Debug	MCU	Frequency	Flash	RAM
Arduboy	External	ATMEGA32U4	16MHz	28KB	2.50KB
Arduboy DevKit	External	ATMEGA32U4	16MHz	28KB	2.50KB

Arduino

Name	Debug	MCU	Frequency	Flash	RAM
Arduino BT ATmega168	External	ATMEGA168	16MHz	14KB	1KB
Arduino BT ATmega328	External	ATMEGA328P	16MHz	28KB	2KB
Arduino Duemilanove or Diecimila ATmega168	External	ATMEGA168	16MHz	14KB	1KB
Arduino Duemilanove or Diecimila ATmega328	External	ATMEGA328P	16MHz	30KB	2KB
Arduino Esplora	External	ATMEGA32U4	16MHz	28KB	2.50KB
Arduino Ethernet	External	ATMEGA328P	16MHz	31.50KB	2KB
Arduino Fio	External	ATMEGA328P	8MHz	30KB	2KB
Arduino Industrial 101	External	ATMEGA32U4	16MHz	28KB	2.50KB
Arduino Leonardo	External	ATMEGA32U4	16MHz	28KB	2.50KB
Arduino Leonardo ETH	External	ATMEGA32U4	16MHz	28KB	2.50KB
Arduino LilyPad ATmega168	External	ATMEGA168	8MHz	14KB	1KB
Arduino LilyPad ATmega328	External	ATMEGA328P	8MHz	30KB	2KB
Arduino LilyPad USB	External	ATMEGA32U4	8MHz	28KB	2.50KB
Arduino Mega ADK	External	ATMEGA2560	16MHz	248KB	8KB
Arduino Mega or Mega 2560 ATmega1280	External	ATMEGA1280	16MHz	124KB	8KB
Arduino Mega or Mega 2560 ATmega2560 (Mega 2560)	External	ATMEGA2560	16MHz	248KB	8KB
Arduino Micro	External	ATMEGA32U4	16MHz	28KB	2.50KB
Arduino Mini ATmega168	External	ATMEGA168	16MHz	14KB	1KB
Arduino Mini ATmega328	External	ATMEGA328P	16MHz	28KB	2KB
Arduino NG or older ATmega168	External	ATMEGA168	16MHz	14KB	1KB
Arduino NG or older ATmega8	External	ATMEGA8	16MHz	7KB	1KB
Arduino Nano ATmega168	External	ATMEGA168	16MHz	14KB	1KB
Arduino Nano ATmega328	External	ATMEGA328P	16MHz	30KB	2KB
Arduino Nano ATmega328 (New Bootloader)	External	ATMEGA328P	16MHz	30KB	2KB
Arduino Pro or Pro Mini ATmega168 (3.3V, 8 MHz)	External	ATMEGA168	8MHz	14KB	1KB
Arduino Pro or Pro Mini ATmega168 (5V, 16 MHz)	External	ATMEGA168	16MHz	14KB	1KB
Arduino Pro or Pro Mini ATmega328 (3.3V, 8 MHz)	External	ATMEGA328P	8MHz	30KB	2KB
Arduino Pro or Pro Mini ATmega328 (5V, 16 MHz)	External	ATMEGA328P	16MHz	30KB	2KB
Arduino Robot Control	External	ATMEGA32U4	16MHz	28KB	2.50KB
Arduino Robot Motor	External	ATMEGA32U4	16MHz	28KB	2.50KB
Arduino Uno	External	ATMEGA328P	16MHz	31.50KB	2KB
Arduino Uno Mini	External	ATMEGA328P	16MHz	31.50KB	2KB
Arduino Yun	External	ATMEGA32U4	16MHz	28KB	2.50KB
Arduino Yun Mini	External	ATMEGA32U4	16MHz	28KB	2.50KB

Atmel

Name	Debug	MCU	Frequency	Flash	RAM
Generic ATtiny1634	No	ATTINY1634	8MHz	16KB	1KB
Generic ATtiny167	No	ATTINY167	8MHz	16KB	512B
Generic ATtiny2313	External	ATTINY2313	8MHz	2KB	128B
Generic ATtiny24	External	ATTINY24	8MHz	2KB	128B
Generic ATtiny25	External	ATTINY25	8MHz	2KB	128B
Generic ATtiny261	No	ATTINY261	8MHz	2KB	128B
Generic ATtiny4313	External	ATTINY4313	8MHz	4KB	256B
Generic ATtiny43U	No	ATTINY43U	8MHz	4KB	256B
Generic ATtiny44	External	ATTINY44	8MHz	4KB	256B
Generic ATtiny441	No	ATTINY441	8MHz	4KB	256B
Generic ATtiny45	External	ATTINY45	8MHz	4KB	256B
Generic ATtiny461	No	ATTINY461	8MHz	4KB	256B
Generic ATtiny48	No	ATTINY48	8MHz	4KB	256B
Generic ATtiny828	No	ATTINY828	8MHz	8KB	512B
Generic ATtiny84	External	ATTINY84	8MHz	8KB	512B
Generic ATtiny841	No	ATTINY841	8MHz	8KB	512B
Generic ATtiny85	External	ATTINY85	8MHz	8KB	512B
Generic ATtiny861	No	ATTINY861	8MHz	8KB	512B
Generic ATtiny87	No	ATTINY87	8MHz	8KB	512B
Generic ATtiny88	No	ATTINY88	8MHz	8KB	512B
USBasp stick	External	ATMEGA8	12MHz	8KB	1KB

BQ

Name	Debug	MCU	Frequency	Flash	RAM
BQ ZUM BT-328	External	ATMEGA328P	16MHz	28KB	2KB

BSFrance

Name	Debug	MCU	Frequency	Flash	RAM
LoRa32u4II (868-915MHz)	External	ATMEGA32U4	8MHz	28KB	2.50KB

BitWizard

Name	Debug	MCU	Frequency	Flash	RAM
BitWizard Raspduino	External	ATMEGA328P	16MHz	30KB	2KB

Controllino

Name	Debug	MCU	Frequency	Flash	RAM
Controllino Maxi	External	ATMEGA2560	16MHz	248KB	8KB
Controllino Maxi Automation	External	ATMEGA2560	16MHz	248KB	8KB
Controllino Mega	External	ATMEGA2560	16MHz	248KB	8KB
Controllino Mini	External	ATMEGA328P	16MHz	31.50KB	2KB

Digistump

Name	Debug	MCU	Frequency	Flash	RAM
Digispark Pro	No	ATTINY167	16MHz	14.50KB	512B
Digispark Pro (16 MHz) (64 byte buffer)	No	ATTINY167	16MHz	14.50KB	512B
Digispark Pro (32 byte buffer)	No	ATTINY167	16MHz	14.50KB	512B
Digispark USB	External	ATTINY85	16MHz	5.87KB	512B

Dwengo

Name	Debug	MCU	Frequency	Flash	RAM
Dwenguino	No	AT90USB646	16MHz	60KB	2KB

Elektor

Name	Debug	MCU	Frequency	Flash	RAM
Elektor Uno R4	No	ATMEGA328PB	16MHz	31.50KB	2KB

Engduino

Name	Debug	MCU	Frequency	Flash	RAM
Engduino 3	External	ATMEGA32U4	8MHz	28KB	2.50KB

EnviroDIY

Name	Debug	MCU	Frequency	Flash	RAM
EnviroDIY Mayfly	External	ATMEGA1284P	8MHz	127KB	16KB

FYSETC

Name	Debug	MCU	Frequency	Flash	RAM
FYSETC F6 V1.3	External	ATMEGA2560	16MHz	252KB	8KB

LightUp

Name	Debug	MCU	Frequency	Flash	RAM
LightUp	External	ATMEGA32U4	8MHz	28KB	2.50KB

Linino

Name	Debug	MCU	Frequency	Flash	RAM
Linino One	External	ATMEGA32U4	16MHz	28KB	2.50KB

LowPowerLab

Name	Debug	MCU	Frequency	Flash	RAM
LowPowerLab MightyHat	External	ATMEGA328P	16MHz	31KB	2KB
LowPowerLab Moteino	External	ATMEGA328P	16MHz	31.50KB	2KB
LowPowerLab Moteino (8Mhz)	External	ATMEGA328P	8MHz	31.50KB	2KB
LowPowerLab MoteinoMEGA	External	ATMEGA1284P	16MHz	127KB	16KB

MediaTek Labs

Name	Debug	MCU	Frequency	Flash	RAM
LinkIt Smart 7688 Duo	External	ATMEGA32U4	8MHz	28KB	2.50KB

Microchip

Name	Debug	MCU	Frequency	Flash	RAM
AT90CAN128	No	AT90CAN128	16MHz	128KB	4KB
AT90CAN32	No	AT90CAN32	16MHz	32KB	2KB
AT90CAN64	No	AT90CAN64	16MHz	64KB	4KB
ATmega128/A	External	ATMEGA128	16MHz	128KB	4KB
ATmega1280	External	ATMEGA1280	16MHz	128KB	8KB
ATmega1281	External	ATMEGA1281	16MHz	128KB	8KB
ATmega1284	External	ATMEGA1284	16MHz	128KB	16KB
ATmega1284P	External	ATMEGA1284P	16MHz	128KB	16KB
ATmega16	External	ATMEGA16	16MHz	16KB	1KB
ATmega162	No	ATMEGA162	16MHz	16KB	1KB
ATmega164A	No	ATMEGA164A	16MHz	16KB	1KB
ATmega164P/PA	External	ATMEGA164P	16MHz	16KB	1KB
ATmega165/A	No	ATMEGA165A	16MHz	16KB	1KB
ATmega165P/PA	No	ATMEGA165P	16MHz	16KB	1KB
ATmega168/A	External	ATMEGA168	16MHz	16KB	1KB
ATmega168P/PA	External	ATMEGA168P	16MHz	16KB	1KB
ATmega168PB	No	ATMEGA168PB	16MHz	16KB	1KB
ATmega169/P/PA	No	ATMEGA169P	16MHz	16KB	1KB
ATmega169A	No	ATMEGA169A	16MHz	16KB	1KB
ATmega2560	External	ATMEGA2560	16MHz	256KB	8KB
ATmega2561	No	ATMEGA2561	16MHz	256KB	8KB
ATmega32	No	ATMEGA32	16MHz	32KB	2KB
ATmega324A	External	ATMEGA324A	16MHz	32KB	2KB
ATmega324P	External	ATMEGA324P	16MHz	32KB	2KB
ATmega324PA	External	ATMEGA324PA	16MHz	32KB	2KB
ATmega324PB	No	ATMEGA324PB	16MHz	32KB	2KB
ATmega325/A	No	ATMEGA325	16MHz	32KB	2KB
ATmega3250/A	No	ATMEGA3250	16MHz	32KB	2KB
ATmega3250P/PA	No	ATMEGA3250P	16MHz	32KB	2KB
ATmega325P/PA	No	ATMEGA325P	16MHz	32KB	2KB
ATmega328	External	ATMEGA328	16MHz	32KB	2KB
ATmega328P/PA	External	ATMEGA328P	16MHz	32KB	2KB
ATmega328PB	No	ATMEGA328PB	16MHz	32KB	2KB
ATmega329/A	No	ATMEGA329	16MHz	32KB	2KB
ATmega3290/A	No	ATMEGA3290	16MHz	32KB	2KB
ATmega3290P/PA	No	ATMEGA3290P	16MHz	32KB	2KB
ATmega329P/PA	No	ATMEGA329P	16MHz	32KB	2KB
ATmega48/A	External	ATMEGA48	16MHz	4KB	512B
ATmega48P/PA	External	ATMEGA48P	16MHz	4KB	512B
ATmega48PB	No	ATMEGA48PB	16MHz	4KB	512B
ATmega64/A	No	ATMEGA64	16MHz	64KB	4KB
ATmega640	No	ATMEGA640	16MHz	64KB	8KB
ATmega644/A	No	ATMEGA644A	16MHz	64KB	4KB
ATmega644P/PA	External	ATMEGA644P	16MHz	64KB	4KB
ATmega645/A	No	ATMEGA645	16MHz	64KB	4KB
ATmega6450/A	No	ATMEGA6450	16MHz	64KB	4KB
ATmega6450P	No	ATMEGA6450P	16MHz	64KB	4KB
ATmega645P	No	ATMEGA645P	16MHz	64KB	4KB
ATmega649/A	No	ATMEGA649	16MHz	64KB	4KB
ATmega6490/A	No	ATMEGA6490	16MHz	64KB	4KB
ATmega6490P	No	ATMEGA6490P	16MHz	64KB	4KB
ATmega649P	No	ATMEGA649P	16MHz	64KB	4KB
ATmega8/A	External	ATMEGA8	16MHz	8KB	1KB
ATmega8515	No	ATMEGA8515	16MHz	8KB	512B
ATmega8535	No	ATMEGA8535	16MHz	8KB	512B
ATmega88/A	External	ATMEGA88	16MHz	8KB	1KB
ATmega88P/PA	External	ATMEGA88P	16MHz	8KB	1KB
ATmega88PB	No	ATMEGA88PB	16MHz	8KB	1KB
ATtiny13	External	ATTINY13	9MHz	1KB	64B
ATtiny13A	External	ATTINY13A	9MHz	1KB	64B
Atmel AT90PWM216	No	AT90PWM216	16MHz	16KB	1KB
Atmel AT90PWM316	No	AT90PWM316	16MHz	16KB	1KB

Microduino

Name	Debug	MCU	Frequency	Flash	RAM
Microduino Core (Atmega168PA@16M,5V)	External	ATMEGA168P	16MHz	15.50KB	1KB
Microduino Core (Atmega168PA@8M,3.3V)	External	ATMEGA168P	8MHz	15.50KB	1KB
Microduino Core (Atmega328P@16M,5V)	External	ATMEGA328P	16MHz	31.50KB	2KB
Microduino Core (Atmega328P@8M,3.3V)	External	ATMEGA328P	8MHz	31.50KB	2KB
Microduino Core USB (ATmega32U4@16M,5V)	External	ATMEGA32U4	16MHz	28KB	2.50KB
Microduino Core+ (ATmega1284P@16M,5V)	External	ATMEGA1284P	16MHz	127KB	16KB
Microduino Core+ (ATmega1284P@8M,3.3V)	External	ATMEGA1284P	8MHz	127KB	16KB
Microduino Core+ (Atmega644PA@16M,5V)	External	ATMEGA644P	16MHz	63KB	4KB
Microduino Core+ (Atmega644PA@8M,3.3V)	External	ATMEGA644P	8MHz	63KB	4KB

OpenEnergyMonitor

Name	Debug	MCU	Frequency	Flash	RAM
OpenEnergyMonitor emonPi	External	ATMEGA328P	16MHz	30KB	2KB

PanStamp

Name	Debug	MCU	Frequency	Flash	RAM
PanStamp AVR	External	ATMEGA328P	8MHz	31.50KB	2KB

Pinoccio

Name	Debug	MCU	Frequency	Flash	RAM
Pinoccio Scout	No	ATMEGA256RFR2	16MHz	248KB	32KB

Pololu Corporation

Name	Debug	MCU	Frequency	Flash	RAM
Pololu A-Star 32U4	External	ATMEGA32U4	16MHz	28KB	2.50KB

Prusa 3D

Name	Debug	MCU	Frequency	Flash	RAM
Original Prusa i3 MK3 Multi Material 2.0 Upgrade	External	ATMEGA32U4	16MHz	28KB	2.50KB
Prusa RAMBo	External	ATMEGA2560	16MHz	252KB	8KB

Punch Through

Name	Debug	MCU	Frequency	Flash	RAM
LightBlue Bean	External	ATMEGA328P	8MHz	31.50KB	2KB
LightBlue Bean+	External	ATMEGA328P	16MHz	31.50KB	2KB

Quirkbot

Name	Debug	MCU	Frequency	Flash	RAM
Quirkbot	External	ATMEGA32U4	8MHz	28KB	2.50KB

RedBearLab

Name	Debug	MCU	Frequency	Flash	RAM
RedBearLab Blend	External	ATMEGA32U4	16MHz	28KB	2.50KB
RedBearLab Blend Micro 3.3V/16MHz (overclock)	External	ATMEGA32U4	16MHz	28KB	2.50KB
RedBearLab Blend Micro 3.3V/8MHz	External	ATMEGA32U4	8MHz	28KB	2.50KB

RepRap

Name	Debug	MCU	Frequency	Flash	RAM
RepRap RAMBo	External	ATMEGA2560	16MHz	252KB	8KB

SODAQ

Name	Debug	MCU	Frequency	Flash	RAM
SODAQ GaLoRa	External	ATMEGA1284P	8MHz	127KB	16KB
SODAQ Mbili	External	ATMEGA1284P	8MHz	127KB	16KB
SODAQ Moja	External	ATMEGA328P	8MHz	31.50KB	2KB
SODAQ Ndogo	External	ATMEGA1284P	8MHz	127KB	16KB
SODAQ Tatu	External	ATMEGA1284P	8MHz	127KB	16KB

Sanguino

Name	Debug	MCU	Frequency	Flash	RAM
Sanguino ATmega1284p (16MHz)	External	ATMEGA1284P	16MHz	127KB	16KB
Sanguino ATmega1284p (8MHz)	External	ATMEGA1284P	8MHz	127KB	16KB
Sanguino ATmega644 or ATmega644A (16 MHz)	External	ATMEGA644	16MHz	63KB	4KB
Sanguino ATmega644 or ATmega644A (8 MHz)	External	ATMEGA644	8MHz	63KB	4KB
Sanguino ATmega644P or ATmega644PA (16 MHz)	External	ATMEGA644P	16MHz	63KB	4KB
Sanguino ATmega644P or ATmega644PA (8 MHz)	External	ATMEGA644P	8MHz	63KB	4KB

SeeedStudio

Name	Debug	MCU	Frequency	Flash	RAM
Seeeduino	External	ATMEGA328P	16MHz	31.50KB	2KB

SparkFun

Name	Debug	MCU	Frequency	Flash	RAM
SparkFun ATmega128RFA1 Dev Board	External	ATMEGA128RFA1	16MHz	124KB	16KB
SparkFun Digital Sandbox	External	ATMEGA328P	8MHz	31.50KB	2KB
SparkFun Fio V3 3.3V/8MHz	External	ATMEGA32U4	8MHz	28KB	2.50KB
SparkFun Makey Makey	External	ATMEGA32U4	16MHz	28KB	2.50KB
SparkFun Mega Pro 3.3V/8MHz	External	ATMEGA2560	8MHz	252KB	8KB
SparkFun Mega Pro 5V/16MHz	External	ATMEGA2560	16MHz	248KB	8KB
SparkFun Mega Pro Mini 3.3V	External	ATMEGA2560	8MHz	252KB	8KB
SparkFun MicroView	External	ATMEGA328P	16MHz	31.50KB	2KB
SparkFun Pro Micro 3.3V/8MHz	External	ATMEGA32U4	8MHz	28KB	2.50KB
SparkFun Pro Micro 5V/16MHz	External	ATMEGA32U4	16MHz	28KB	2.50KB
SparkFun Qduino Mini	External	ATMEGA32U4	8MHz	28KB	2.50KB
SparkFun RedBoard	External	ATMEGA328P	16MHz	31.50KB	2KB
SparkFun Serial 7-Segment Display	External	ATMEGA328P	8MHz	31.50KB	2KB

SpellFoundry

Name	Debug	MCU	Frequency	Flash	RAM
SpellFoundry Sleepy Pi 2	External	ATMEGA328P	8MHz	30KB	2KB

The Things Network

Name	Debug	MCU	Frequency	Flash	RAM
The Things Uno	External	ATMEGA32U4	16MHz	28KB	2.50KB

Till Harbaum

Name	Debug	MCU	Frequency	Flash	RAM
ftDuino	External	ATMEGA32U4	16MHz	28KB	2.50KB

TinyCircuits

Name	Debug	MCU	Frequency	Flash	RAM
TinyCircuits TinyDuino Processor Board	External	ATMEGA328P	8MHz	30KB	2KB
TinyCircuits TinyLily Mini Processor	External	ATMEGA328P	8MHz	30KB	2KB

Wicked Device

Name	Debug	MCU	Frequency	Flash	RAM
Wicked Device WildFire V2	External	ATMEGA1284P	16MHz	120.00KB	16KB
Wicked Device WildFire V3	External	ATMEGA1284P	16MHz	127KB	16KB

Wisen

Name	Debug	MCU	Frequency	Flash	RAM
Talk2 Whisper Node	External	ATMEGA328P	16MHz	31.50KB	2KB

makerlab.mx

Name	Debug	MCU	Frequency	Flash	RAM
Altair	No	ATMEGA256RFR2	16MHz	248KB	32KB

nicai-systems

Name	Debug	MCU	Frequency	Flash	RAM
nicai-systems BOB3 coding bot	External	ATMEGA88	8MHz	8KB	1KB
nicai-systems NIBO 2 robot	External	ATMEGA128	16MHz	128KB	4KB
nicai-systems NIBO burger robot	External	ATMEGA16	15MHz	16KB	1KB
nicai-systems NIBO burger robot with Tuning Kit	External	ATMEGA1284P	20MHz	128KB	16KB
nicai-systems NIBObee robot	External	ATMEGA16	15MHz	16KB	1KB
nicai-systems NIBObee robot with Tuning Kit	External	ATMEGA1284P	20MHz	128KB	16KB

ubIQio

Name	Debug	MCU	Frequency	Flash	RAM
ubIQio Ardhat	External	ATMEGA328P	16MHz	31.50KB	2KB