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 . . .
ESP8266: HT-16k33 7 Segment I2C Test
