Tag: ESP8266 HT-16k33 7 Segment I2C Test

  ESP8266: HT-16k33 7 Segment I2C Test     Connection: – NodeMCU GPIO0 -> D1 -> SCL (HT-16k33) – NodeMCU GPIO4 -> D2 -> SDA (HT-16k33) – NodeMCU +3.3 -> 3V3 -> VCC (HT-16k33) – NodeMCU GND -> GND -> GND (HT-16k33)   Library: https://github.com/adafruit/Adafruit_LED_Backpack    Arduino code: /*************************************************** This is a library for our . . .

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