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Category:ESP8266 HDK - Revision history
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Chao at 11:11, 17 June 2020
2020-06-17T11:11:37Z
<p></p>
<p><b>New page</b></p><div>== List ==<br />
<br />
* Programming and code please see at [[:category: ESP8266 SDK]]<br />
* ESP8266 Datasheet, development board sch, please see at github: https://github.com/Edragon/ESP8266-HDK<br />
* ESP8266 Modules: https://www.electrodragon.com/w/Category:ESP8266_Modules<br />
<br />
== SCH ==<br />
<br />
<gallery><br />
File:ESP13-arduino schematic.png | ESP-13 dev board schematic<br />
File:D1_mini_schematic.jpeg | D1 Mini dev board schematic<br />
File:Mini_pro.png | D1 Mini Pro<br />
File:D1-Wifi-UNO.jpg | D1 UNO Board<br />
File:NODEMCU_DEVKIT_SCH.png| Nodemcu schematic 0.9<br />
File:Arduino_exp_extension_shield.png | ESP arduino extension board schematic <br />
File:ESP8266_dev_sch_01.jpg | ESP8266 common development schematic 01<br />
File:Esp-lora.png | ESP-LORA arduino shield<br />
</gallery><br />
* NodeMCU [[File:NODEMCU_DEVKIT_V1.0.PDF|Nodemcu 1.0 schematic]]<br />
<br />
== Pin Map ==<br />
{| class="wikitable sortable"<br />
|-<br />
! ESP8266 GPIO !! NodeMCU !! Function !! D1 WIFI UNO R1 !! D1 mini !! ESP-12F <br />
|-<br />
| GPIO15 || D8 || SS / TXD2 || D10 || D8<br />
|-<br />
| GPIO13 || D7 || MOSI / RXD2 || D11 D7 || D7<br />
|-<br />
| GPIO12 || D6 || SPI_MISO || D12 D6 || D6 <br />
|-<br />
| GPIO14 || D5 || SPI_SCK || D13 D5 || D5<br />
|-<br />
| GPIO16 || D0 || WAKE || D2 || D0<br />
<br />
|-<br />
| GPIO1 || D10 || TXD0 || D1 || TXD0 || TXD<br />
|-<br />
| GPIO3 || D9 || RXD0 || D0 || RXD0 || RXD<br />
|-<br />
| GPIO5 || D1 || SCL || D3 || D1 || -<br />
|-<br />
| GPIO4 || D2 || SDA || D4 || D2 || -<br />
|-<br />
| GPIO0 || D3 || FLASH || D8 || D3 || -<br />
|-<br />
| GPIO2 || D4 || TXD1 || D9 || D4 || On board LED<br />
<br />
|}<br />
<gallery><br />
File:NODEMCU DEVKIT V1.0 PINMAP.png | nodemcu pin definition<br />
</gallery><br />
<br />
== Circuits ==<br />
* auto reset circuits see [[Serial]]<br />
* Boot options <br />
{| class="wikitable sortable"<br />
|-<br />
! Function !! GPIO0 !! GPIO15 !! GPIO2<br />
|-<br />
| Design || External Pull || External Pull || Internal Pull up<br />
|-<br />
| ESP-12S || - || - || On board LED<br />
|-<br />
| bootloader flash mode || 0V || 0V || 3.3V<br />
|-<br />
| Boot from Flash || 3.3V || 0V || 3.3V<br />
|-<br />
| SDIO mode|| X || 3.3V || X<br />
|}<br />
Reference for GPIO2:<br />
* https://tttapa.github.io/ESP8266/Chap04%20-%20Microcontroller.html<br />
* https://bbs.espressif.com/viewtopic.php?t=1498<br />
<br />
<br />
<br />
[[category: ESP8266]]</div>
Chao