Valetron Systems VALTRACK-V4-VTS-ESP32-C3 (or Valtrack V4 for short) is a 4G LTE GPS vehicle tracker based on ESP32-C3 WiFi and Bluetooth SoC and a SIMCom SIM7672 cellular and GNSS module.
Designed to track bicycles, cars, or trucks, the Valtrack V4 GPS tracker is housed in an IP67 waterproof enclosure, takes 12V to 42V DC input from a lead battery or 3.7-4.2V from a backup LiPo or Li-Ion battery, and features an accelerometer to wake up when motion is detected or detect theft, as well as three RGB LEDs for status.
Valtrack V4 specifications:
- Wireless MCU – Espressif ESP32-C3FH4
- CPU – 32-bit RISC-V microcontroller @ up to 160 MHz;
- Memory – 400 KB SRAM
- Storage – 4 MB flash
- Wireless – 2.4 GHz Wi-Fi 4 & Bluetooth 5.0
- Cellular and GNSS connectivity
- SIM7672G 4G LTE Cat 1 module with Global LTE band, 2G fallback, and GNSS support
- Nano SIM card slot
- U.FL connector 1.5 dBi gain flexible PCB antenna comes attached
- U.FL Connector with patch antenna (or external GNSS on request)
- Host connection – Bluetooth or USB
- Sensor – LIS3DH 3-axis accelerometer
- Debugging/Programming – Micro USB port for flashing the firmware
- Misc
- 2.4 GHz chip antenna for ESP32-C3
- 3x WS2812 RGB LED indicators for battery, network & location information
- Power Supply
- Main Power Input – 12V to 42V DC connected to lead acid battery; reverse polarity protection
- 3.7V to 4.2V DC backup battery (single cell Li-Po or Li-Ion battery with 400+ mAh capacity); MP2617 charger chip;warning: no reverse polarity protection
- Dimensions
- PCB: 43 x 34 mm
- Enclosure: 65 x 52 x 30 mm
- IP Rating – IP67 with enclosure
Valetron says the design is open-source hardware, but that’s only partially true for the hardware since only PDF schematics are provided. However, the firmware is open-source and based on the ESP-IDF framework, and there’s also an Arduino sketch with hardware initializations. You’ll find all these and instructions to get started on the documentation website.
The device can be configured and monitored with the VALTRACK-V4E-SETUP Android app, and is also compatible with open-source tools such as Traccar. You could also develop your own solution using MQTT or HTTP to get the tracking data, or even integrate the tracker into Home Assistant.
It’s not the first time we cover an ESP32-based 4G cellular GPS tracker solution, and the LILYGO T-SIM7080G-S3 board is an example, but the ESP32-C3-based Valtrack V4 comes with a waterproof enclosure and is especially designed for vehicle tracking.
Valetron Systems has recently launched the Valtrack V4 on Crowd Supply with a $5,000 funding target. Rewards start at $120 for the internal GPS antenna version and $125 for the variant with an external GPS antenna. Shipping adds $8 to the US and $18 to the rest of the world. Deliveries are scheduled to start in November 2025. Indian users might also be able to purchase the device directly from Valetron Systems once available later this year.
Jean-Luc started CNX Software in 2010 as a part-time endeavor, before quitting his job as a software engineering manager, and starting to write daily news, and reviews full time later in 2011.
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