Heltec WSL3
Official Active
Heltec Automation Compact ESP32-S3 + SX1262 LoRa module with Wi-Fi and BLE, built as a stamp-hole package for embedding into custom products. The V3 revision uses a USB-C interface and a smaller low-power form factor than the classic WiFi LoRa 32 boards.
~$12 approx.· 2026-06
- MCU
- ESP32-S3
- Radio
- SX1262
- Display
- None
- GPS
- None
- Battery
- None
- Connectivity
- USB, BLE, Wi-Fi
Roles
CompanionRepeaterRoom Server
Transports
bleusbwifi
Hardware
Radio
- Technology
- LORA
- Chip
- Semtech SX1262 ↗
- Frequency
- 470 MHz,868 MHz,915 MHz
- TX power
- 21 dBm
- Antenna
- IPEX-1.0
Processor
- Family
- Espressif ESP32 series ↗
- Model
- Espressif ESP32-S3 ↗
- Architecture
- Xtensa LX
- Flash
- 8 MB
- RAM
- 512 KB
Battery
- Battery
- None
- Built-in
- No
- Charging
- No
Connectivity
- USB
- USB-C
- USB modes
- Power, Serial, Flashing
- Bluetooth
- BLE 5.0
- Wi-Fi
- 802.11 b/g/n
Firmware support
| Firmware | Type | Target | Status | Notes |
|---|---|---|---|---|
| MeshCore (Official) | Official | heltec_v3 | ✓ Supported | |
| EasySkyMesh | Fork | — | ✓ Supported | |
| Meck | Fork | — | ✓ Supported | Remote repeater only. |
| Meshcomod | Fork | — | ✓ Supported | |
| MeshCore Low-Power | Fork | — | ✓ Supported | |
| MeshCoreNG | Fork | heltec_v3 | ✓ Supported | |
| ZephCore | Custom | — | ✓ Supported | |
| MeshCore-Evo | Fork | — | ✓ Supported |