Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Development, Learning, Evaluation & Industrial Control Boards |
| Origin | - |
| Microcontroller | ESP32-S3-WROOM-1 |
| LoRa Module | SX1262 |
| Frequency Band | 433MHz / 868MHz / 915MHz (Configurable) |
| Wireless Connectivity | Wi-Fi 2.4GHz, Bluetooth 5 (LE) |
| Display Interface | 0.96 inch OLED (I2C) |
| Battery Support | 18650 Li-ion with Charging Circuit |
| Programming Interface | USB Type-C |
| Compatible Frameworks | Arduino IDE, ESP-IDF, PlatformIO |
| Antenna Connector | IPEX (U.FL) for External Antenna |
| Operating Voltage | 3.3V Logic Level |
Anonymous
Mar 30, 2026
Rating: 5/5
Easy to flash and use
Flashed the latest Meshtastic binary in seconds using the web installer. The board recognizes immediately on Windows and Linux. The included antenna connector allows for easy upgrades to high-gain antennas.
Anonymous
Mar 27, 2026
Rating: 4/5
Solid choice for learning LoRa
Bought this for a university project on long-range IoT sensors. The Arduino compatibility makes it very easy to write custom sketches. Only wish it came with a small screwdriver for the antenna connector, but that's a minor issue.
Anonymous
Mar 06, 2026
Rating: 5/5
Perfect for Meshtastic Projects
This board works flawlessly out of the box with Meshtastic firmware. The SX1262 chip provides excellent range compared to older models, and the ESP32-S3 handles the processing smoothly. Highly recommended for anyone building off-grid communication networks.
Anonymous
Mar 03, 2026
Rating: 5/5
Best board in its class
After trying several different LoRa boards, this Heltec V3 compatible version is my favorite. The screen is bright, the buttons are tactile, and the community support is huge. It's become my go-to dev board for wireless projects.
Anonymous
Mar 02, 2026
Rating: 4/5
Great hardware, minor documentation gaps
The build quality is solid and the USB-C connection is a nice touch. I had to dig into the GitHub repo to find the specific pinout for the OLED display, but once configured, everything worked perfectly. Good value for the price.
Anonymous
Mar 02, 2026
Rating: 5/5
Impressive Range and Stability
I tested this against my old LoRa32 v2, and the signal stability on the SX1262 is noticeably better. Battery life is also improved thanks to the efficient power management of the S3 chip. Very happy with this purchase.
Q: What is the maximum operating frequency supported?
A: The SX1262 module on this board supports frequencies from 150 MHz to 960 MHz. Common configurations include 433 MHz, 868 MHz, and 915 MHz, depending on your regional regulations.
Q: How do I update the firmware if I brick the device?
A: If the device becomes unresponsive, hold down the 'Boot' button while connecting the USB cable to enter download mode. You can then re-flash the firmware using esptool.py or the Arduino IDE.
Q: Can I power this directly via the USB-C port without a battery?
A: Absolutely. The board can be powered solely through the USB-C port for development and testing. The battery charging circuit only activates when a Li-ion battery is connected.
Q: Is this compatible with the standard Arduino IDE?
A: Yes, fully compatible. You need to install the ESP32 board manager package in Arduino IDE, select 'Heltec WiFi LoRa 32 V3' or the generic ESP32-S3 board, and you can start coding immediately.
Q: Does this board come with an external antenna included?
A: The package typically includes a small internal whip antenna. For better range, we recommend purchasing a separate external antenna with an IPEX connector suited for your specific frequency band.
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