ESP-PROG breadboard adapter

Simple adapter allowing to connect ESP-PROG board to breadboard, using provided IDC cables (1.27mm pitch).

Schematic

Pictures

Wiring guide for popular chips

ESP32-WROOM-32 (ESP-32)

Adapter pin	ESP-32 pin	No
RXD	RXD0	34
TXD	TXD0	35
EN	EN	3
IO0	IO0	25
TDI	IO12	14
TDO	IO15	23
TMS	IO14	13
TCK	IO13	16
VCC	3V3	2
GND	GND	1, 15, 38

Datasheet: https://www.espressif.com/sites/default/files/documentation/esp32-wroom-32_datasheet_en.pdf

ESP32-S2-WROOM (ESP-32-S2)

Adapter pin	ESP-32 pin	No
RXD	RXD0	38
TXD	TXD0	37
EN	EN	41
IO0	IO0	3
TDI	IO41	35
TDO	IO40	34
TMS	IO42	36
TCK	IO39	33
VCC	3V3	2
GND	GND	1, 26, 42

Datasheet: https://www.espressif.com/sites/default/files/documentation/esp32-s2-wroom_esp32-s2-wroom-i_datasheet_en.pdf

ESP-WROOM-02 (ESP8266)

Adapter pin	ESP-32 pin	No
RXD	RXD	11
TXD	TXD	12
EN	EN	2
IO0	IO0	8
TDI	N/A [1]	N/A [1]
TDO	N/A [1]	N/A [1]
TMS	N/A [1]	N/A [1]
TCK	N/A [1]	N/A [1]
VCC	3V3	1
GND	GND	9, 13, 18

[1] JTAG online debugging is supported only on ESP-32 platform

Datasheet: https://www.espressif.com/sites/default/files/documentation/0c-esp-wroom-02_datasheet_en.pdf

Resources

License

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