Unverified Commit 7f356d7c authored by Birte Kristina Friesel's avatar Birte Kristina Friesel
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README: Add Pinout

parent d33adf4c

README.md

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@@ -17,6 +17,17 @@ It can also publish readings to InfluxDB. 
* CO₂ sensor: MH-Z19

* Display: 128×32 OLED via SSD1306 (128×64 also supported with some changes)



## Pinout



* MH-Z19 VCC → NodeMCU 5V

* MH-Z19 GND → NodeMCU/ESP8266 GND

* MH-Z19 RX → NodeMCU D1 (ESP8266 GPIO5)

* MH-Z19 TX → NodeMCU D2 (ESP8266 GPIO4)

* SSD1306 VCC → NodeMCU/ESP8266 3V3

* SSD1306 GND → NodeMCU/ESP8266 GND

* SSD1306 SDA → NodeMCU D5 (ESP8266 GPIO14)

* SSD1306 SCL → NodeMCU D6 (ESP8266 GPIO12)



## Flashing



This repository contains a NodeMCU build that provides the required modules.