LILYGO TTGO Paxcounter LoRa32 V2.1_1.6.1 ESP32 868MHz Development Board

LILYGO TTGO Paxcounter LoRa32 V2.1_1.6.1 868MHz is an advanced IoT development platform driven by the dual-core ESP32-PICO-D4 microcontroller, specifically engineered for long-range wireless communication, telemetry, and LoRaWAN applications. Revision V2.1_1.6.1 incorporates enhanced power management hardware, integrated Li-ion battery charging circuitry, and expanded peripheral interfaces.

At the core of its long-range communication capability is the Semtech SX1276 LoRa transceiver operating on the 868 MHz ISM band. The board features an onboard 0.96" SSD1306 OLED display for real-time diagnostics, a MicroSD card socket for local data logging, and integrated Wi-Fi and Bluetooth connectivity. Optimized for running open-source frameworks like Paxcounter—a tool that counts surrounding mobile devices in real time via Wi-Fi and Bluetooth signals without invading personal privacy.

Key Specifications:

• Microcontroller: ESP32-PICO-D4 (240 MHz dual-core, 520 KB SRAM, 4 MB Flash)

• Wireless Connectivity: Wi-Fi 802.11 b/g/n, Bluetooth v4.2 BR/EDR & BLE

• LoRa Transceiver: Semtech SX1276

• LoRa Frequency: 868 MHz band

• Display: 0.96-inch OLED, 128×64 resolution (I2C interface, SSD1306 driver)

• External Storage: MicroSD Card Slot (SPI interface)

• Power Management: Integrated AXP192 / TP4054 charge management IC for 3.7V Li-ion/LiPo

• Antenna Connectors: SMA connector for LoRa, 3D onboard antenna for Wi-Fi/BT

• Interface / Flashing: USB Type-C (USB-to-UART bridge)

• Operating Voltage: 3.3V logic (5V input via USB Type-C or 3.7V battery)

• Onboard Buttons: Power switch, Reset, Boot (IO0)

• Package Includes: LILYGO LoRa32 V2.1_1.6.1 board, 868MHz antenna, JST power connector cable, pin headers