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Paxcounter (ESP32 Board)

Paxcounter is a ESP32 based device to meter pax flows in realtime




* supports microSD-card


Depending on board hardware following features are supported:

  • LoRaWAN communication, supporting various payload formats (see enclosed .js converters)
  • MQTT communication via TCP/IP and Ethernet interface (note: payload transmitted over MQTT will be base64 encoded)
  • SPI serial communication to a local host
  • LED (shows power & status)
  • OLED Display (shows detailed status)
  • RGB LED (shows colorized status)
  • Button (short press: flip display page / long press: send alarm message)
  • Battery voltage monitoring (analog read / AXP192 / IP5306)
  • GPS (Generic serial NMEA, or Quectel L76 I2C)
  • Environmental sensors (Bosch BMP180/BME280/BME680 I2C; SDS011 serial)
  • Real Time Clock (Maxim DS3231 I2C)
  • IF482 (serial) and DCF77 (gpio) time telegram generator
  • Switch external power/battery
  • LED Matrix display (similar to this 64x16 model, can be ordered on Aliexpress
  • SD-card for logging pax data