ESP32-Paxcounter 433/868/915MHZ LoRa ESP-32 OLED 0.96 Inch SD Card Bluetooth WIFI Module SMA
TTGO ESP32-Paxcounter LoRa32 V2.1 1.6 Version 433/868/915MHZ LoRa ESP-32 OLED 0.96 Inch SD Card Bluetooth WIFI Module SMA.
Paxcounter is a proof-of-concept device for metering passenger flows in real time. It counts how many mobile devices are around. This gives an estimation how many people are around. Paxcounter detects Wifi and Bluetooth signals in the air, focusing on mobile devices by filtering vendor OUIs in the MAC adress.
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.
Bonus of this project is that metered data is transferred via a LoRaWAN network, not via usual GSM/LTE or Wifi uplink.
You can build this project battery powered and reach a full day uptime with a single 18650 Li-Ion cell.
Working voltage: 1.8~3.7v
Operating frequency: 868M/915MHz
Transmit power: +20dBm
Receive sensitivity: -139dBm@LoRa & 62.5Khz& SF=12&146bps
-136dBm@LoRa & 125Khz&SF=12&293bps
-118dBm@LoRa & 125Khz&SF=6&9380bps
FIFO space ： 64Byte
Data rate ：1.2K~300Kbps@FSK
Modulation Mode ：FSK,GFSK,MSK,GMSK,LoRa TM，OOK
Interface form ： SPI
Sleep current ：0.2uA@SLEEP
Operating temperature ：-40℃- +85℃
Digital RSSI function
Automatic frequency correction
Automatic gain control
RF wake-up function
Low voltage detection and temperature sensor
Fast wake-up and frequency hopping
Highly configurable data packet handler
At the TTGO LoRa V2.1_1.6, we add the SMA and TP4054 to the board, which make it can do more things. In terms of the power switch, we have changed the switching interaction mode. The added SMA antenna can enhance signal transmission.
- 1 X TTGO LoRa32 V2.
- 1 X 433/868/915 Module 2 X Pin. If you are interested in 868/915 Module write to us.
- 1 X Antenna
- 1 X Power Cable
- 1 X Free Box