Assembled Adafruit 0.56" 4-Digit 7-Segment Display - w/ I2C Backpack QT - Red _MAKE_ROBO_MOTOR Raspberry Pi Zero not included

Raspberry Pi Zero not included

LoRa spread spectrum modulation technology

The ESP32 has both WiFi and Bluetooth Classic/LE support

sound level detection Temperature-Humidity Sensor DHT11 temperature and humidity sensor Ambient temperature and humidity detection Tilt Sensor Detects shake signal Shake detection

this HAT does not come with a 12mm coin battery

Assembled Adafruit 0.56" 4-Digit 7-Segment Display - w/ I2C Backpack QT - Red _MAKE_ROBO_MOTOR Raspberry Pi Zero not includedWhat's better than a single LED? Lots of LEDs! A fun way to make a small display is to use an 8x8 matrix or a 4 digit 7 segment display. Matrices like these are 'multiplexed' so to control all the seven segment LEDs you need 14 pins. That's a lot of pins, and there are driver chips like the MAX7219 that can control a matrix for you but there's a lot of wiring to set up and they take up a ton of space. Here at Adafruit we feel your pain! After all,