ESP8266
common pins
| pin | setup | func | Note |
|---|---|---|---|
| U0_RXD | GPIO3 | I/O UART Rx during flash programming | |
| U0_TXD | GPIO1 | I/O UART TX during flash programming; | SPI_CS1 |
serial1 =
bootstrap
| pin | setup | func |
|---|---|---|
| RESET | pull up + cap 0.1 UF | |
| EN | pull up | |
| IO0 | pull up | |
| IO2 | pull up | on-module LED |
| GPIO15 | pull down |
Modules
| models | SKU | note |
|---|---|---|
| ESP-01-DAT = ESP-01S | NWI1077-dat | General DIP PTH version, less pin lead out, easy to use |
| ESP-01-DAT = ESP-01M | NWI1127-dat | Vertical stand on your PCBsave space and better signal |
| ESP-07S-DAT | NWI1075-dat | Pin compatible with esp-12, IPEX connector to get greater signal |
| ESP-12F-DAT | NWI1059-dat | Common ESP8266 module early version |
| ESP-12S-DAT | NWI1086-dat | optimized from ESP-12F-dat |
| ESP-WROOM-02-dat | NWI1112-dat | Most certificated, best design by original Espressif. |
Sell - NWI1059-dat - NWI1086-dat - NWI1077-dat - NWI1127-dat - NWI1075-dat
WROOM-02
products overview - https://espressif.com/en/products/hardware/esp-wroom-02/overview
Variation:
- WROOM-02D/U further optimized RF performace, pin-to-pin compatible with WROOM-02
- WROOM-02D - on board PCB antenna
-
WROOM-02U - on board IPEX antenna connector, can mount external atenna.
- NWI1112-dat - NWI1160-dat - NWI1161-dat
Obseleted Modules List
ref
-
design guidelines - https://espressif.com/en/support/download/documents?keys=&field_type_tid%5B%5D=16
- CN datasheet of all series - esp8266系列使用手册.pdf
-
Module datasheet please see here: https://github.com/Edragon/ESP8266-HDK/tree/master/MOD
- ESP32-dat