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Deneyap OLED Display Arduino Library

This Arduino library allows you to use Deneyap OLED SSD1306 0.96" 128x64 pixel black blue display module with I2C peripheral. You can use this library in your projects with any Arduino compatible ...
GitHub

One ESP module signalling distance to another, which in response lights up a traffic lights ...

Two ESP8266 Wemos D1 mini modules, A and B, connect to each other, where the one detects a disturbance in the ultrasonic HC-SR04 sensor of the other and signals correspondingly a traffic lights module ...