Heltec V3
In flasher Active
Heltec Automation Classic ESP32-S3 + SX1262 LoRa development board with integrated 0.96-inch OLED, Wi-Fi, and BLE. USB-C power and CP2102 serial, SH1.25 battery connector with charge management, and IPEX LoRa antenna. Widely used for Meshtastic and MeshCore companion, repeater, and room-server nodes.
~$18 approx (2026-06)
References: mesh-sn.de ↗
- MCU
- ESP32-S3
- Radio
- SX1262
- Display
- 0.96″ OLED
- GPS
- None
- Battery
- External
- Connectivity
- USB, BLE, Wi-Fi
Roles
CompanionRepeaterRoom serverStandalone UI
Transports
bleusb
Other models
Compare all 4 →
Variants
Purchasable options for this device| Revision | Variant | Band | SKU |
|---|---|---|---|
| V3.2 | 433MHz | EU433 / CN433 | ZC-152-2-433 |
| V3.2 | 470~510MHz | CN470 | ZC-152-2-470 |
| V3.2 | 863~870MHz | EU868 | ZC-153-2-868 |
| V3.2 | 902~928MHz | US915 / AU915 | ZC-153-2-915 |
Hardware
Radio
- Technology
- LORA
- Chip
- Semtech SX1262 ↗
- Band
- EU433 / CN433CN470EU868US915 / AU915
- TX power
- 21 dBm
- TX efficiency
- 1.05 mW/mA
- Antenna
- IPEX-1.0
Processor
- Family
- Espressif ESP32 series ↗
- Model
- Espressif ESP32-S3 ↗
- Architecture
- Xtensa LX
- Flash
- 8 MB
- RAM
- 512 KB
Battery
- Battery
- External connector
- Chemistry
- LiPo
- Built-in
- No
- Charging
- Yes
- Connector
- SH1.25-2
Expansion
- Connector
- Header 2.54 ×2 · 18 pins
Physical
Connectivity
- USB
- USB-C
- USB bridge
- CP2102
- USB modes
- Power, Serial, Flashing
- Bluetooth
- BLE 5.0
- Wi-Fi
- 802.11 b/g/n
Firmware support
| Firmware | Type | Target | Status | Notes |
|---|---|---|---|---|
| MeshCore (Reference) | Reference | heltec_v3 | ✓ Supported | |
| EasySkyMesh | Fork | — | ✓ Supported | |
| ZephCore | Custom | — | ✓ Supported | |
| Meshcomod | Fork | — | ✓ Supported | |
| MeshCore Low-Power | Fork | — | ✓ Supported | |
| MeshCoreTel | Fork | — | ✓ Supported | |
| Mesh Loader | Custom | — | ✓ Supported | |
| Meck | Fork | — | ✓ Supported | Remote repeater only. |
| LusoFW | Fork | heltec_v3 | ✓ Supported | |
| Offband Mesh | Fork | — | ✓ Supported | |
| MeshCoreNG | Fork | heltec_v3 | ✓ Supported | |
| MeshCore-Evo | Fork | — | ✓ Supported | |
| LunarCore | Custom | — | ✓ Supported | The project README names the Heltec WiFi LoRa 32 V3 as its hardware target. |
3D-printed enclosures
Full housings you can print yourself
1,566Heltec v3 case for Meshtastic by TonyG Printables ↗
415Heltec LoRa32 V3 Meshtastic Case with Encoder/Buzzer/GPS/Environment sensor, M5Stack CardKB Keyboard-ready by slabua Printables ↗
216Nibbler Meshtastic powered Case for Heltec V3 and T114 by zerofox3D Printables ↗
117Meshtastic Heltec V3 Enclosure - Long for 18650 by Gremlin87 Printables ↗
66Meshtastic Pocket Heltec V3 by CodeChomper Printables ↗
Bender Battery Case for Heltec V3 & T114 by zerofox3D Printables ↗
H1 - Case for Heltec V3 running Meshtastic by muzi.works Printables ↗
H1+ - Enhanced H1 Case for Heltec V3/V4 by muzi.works Printables ↗
Heltec MeshCore/Meshtastic Claymore Case by pd7lj Printables ↗
Hermes External Solar Node Enclosure for RAK and Heltec by zerofox3D Printables ↗
