These displays use I2C or SPI to communicate, 2 to 5 pins are required to interface. Adafruit invests time and resources providing this open source code, please support Adafruit and open-source ...
This is a setup with a Wemos D1 mini, an 0.66 inch Oled shield, CO2 sensor and a RGB Led. The Wemos D1 mini makes a connection with a MQTTbroker and publish the CO2 level to certain Topic. The MQTT ...
ESP8266-based development boards have proliferated rapidly. One favorite, the WEMOS Mini-D1 is frequently imitated and sold without any branding. As these boards continue to ship to hobbyists and ...
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