Definitions
Dimension
- pitch 2.0 mm
- width 16 mm
ref
- legacy chip wiki page here - https://w.electrodragon.com/w/Category:ESP8266
- legacy module page - https://w.electrodragon.com/w/ESP-12F_ESP8266_Wifi_Board
Internal SCH
Pin Definitions
| left | – | right | – | func |
|---|---|---|---|---|
| RST | external pull-up, with cap | TXD | ||
| ADC | RXD | |||
| EN | external pull-up | IO5 | ||
| IO16 | IO4 | |||
| IO14 | IO0 | external pull-up | mode select | |
| IO12 | IO2 | external pull-up | ||
| IO13 | IO15 | external pull-down | ||
| VCC | GND |
- on module LED IO2: low to on
Periperhal design
