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Wifi & Bluetooth driven, LoRaWAN enabled, battery-powered mini Paxcounter built on cheap ESP32 LoRa IoT boards. Paxcounter is an ESP32 MCU-based device for metering passenger flows in real time. It counts how many mobile devices are around. This gives an estimation of how many people are around. Paxcounter detects Wifi and Bluetooth signals in the air, focusing on mobile devices by evaluating their MAC addresses. The intention of this project is to do this without intrusion in privacy: You don't need to track people-owned devices if you just want to count them. Therefore, Paxcounter does not persistently store MAC addresses and does no kind of fingerprinting the scanned devices. Data can either be stored on a local SD-card, transferred to the cloud using LoRaWAN network or MQTT over TCP/IP, or transmitted to localhost using serial (SPI) interface. LED Matrix display (similar to this 64x16 model, can be ordered on Aliexpress). SD-card (see section SD-card here) for logging pax data.
Features
- You can build this project battery powered using ESP32 deep sleep mode and reach long uptimes with a single 18650 Li-Ion cell
- Data can either be be stored on a local SD-card, transferred to cloud using LoRaWAN network
- 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)
Project Samples
