upload_speed

Type: Number | Multiple: No

A connection speed (baud rate) which “uploader” tool uses when sending firmware to board.

Common baud rates

Below are common baud rates for reference:

Bauds	Bits/s	Bit duration	Speed (bytes/s)	Actual speed (bytes/s)	Actual byte duration
50	50	20.000 ms	6.25	5	200.000 ms
75	75	13.333 ms	9.375	7.5	133.333 ms
110	110	9.091 ms	13.75	11	90.909 ms
134	134	7.463 ms	16.75	13.4	74.627 ms
150	150	6.667 ms	18.75	15	66.667 ms
200	200	5.000 ms	25	20	50.000 ms
300	300	3.333 ms	37.5	30	33.333 ms
600	600	1.667 ms	75	60	16.667 ms
1200	1200	833.333 µs	150	120	8.333 ms
1800	1800	555.556 µs	225	180	5.556 ms
2400	2400	416.667 µs	300	240	4.167 ms
4800	4800	208.333 µs	600	480	2.083 ms
9600	9600	104.167 µs	1200	960	1.042 ms
19200	19200	52.083 µs	2400	1920	520.833 µs
28800	28800	34.722 µs	3600	2880	347.222 µs
38400	38400	26.042 µs	4800	3840	260.417 µs
57600	57600	17.361 µs	7200	5760	173.611 µs
76800	76800	13.021 µs	9600	7680	130.208 µs
115200	115200	8.681 µs	14400	11520	86.806 µs
230400	230400	4.340 µs	28800	23040	43.403 µs
460800	460800	2.170 µs	57600	46080	21.701 µs
576000	576000	1.736 µs	72000	57600	17.361 µs
921600	921600	1.085 µs	115200	92160	10.851 µs