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Description
Characteristics
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Description
Note：Firmware
V2 firmware is incompatible with V1 firmware.
Meshtastic:
The valid firmware filename is: “firmware-heltec-v4-r8-tft-xxxx.factory.bin” Click to download
MeshCore:
Awaiting Merge | Temporary Download, Click to download.
info
The WiFi LoRa 32 V4 Expansion Kit already includes V4 board and pre-installed accessories.
Introduction
The WiFi LoRa 32 Expansion Kit Gen 2 is compatible with the latest WiFi LoRa 32 V4-R8 (8M-PSRAM) and features a newly added SD card slot, which enhances its performance in high-load applications such as offline maps.
The new version comes with a buzzer and GNSS module integrated by default, and you can also add additional sensor options through the expansion options on the baseboard.
Meanwhile, the baseboard has been upgraded to a new aluminum base plate, making the structure more robust.
Specifications
| Parameters | Description |
|---|---|
| Enclosure Material | Front Cover:Touch Screen; Side Cover: Aluminum Alloy; Rear Cover: Aluminum Alloy |
| Battery(Optional) | 2800mAh 18650 flat-top Li-Ion Battery (Selecting “With Battery” will incur additional shipping costs) |
| SD Card Slot Type | TF Card (Micro SD) |
| GNSS Module | Quectel L76K |
| Touch Screen | 2.8 inch TFT |
| Dimensions | 52×52×15mm |
| Weight | 200g (excluding battery) |
| Expansion Socket | B2B Female |
| Antenna | Whip, SMA Female |
Pin Map
FAQ
Battery is optional. Please note that selecting the battery will incur additional shipping costs.
Any 18650 flat-top lithium battery with a voltage range of 3.3~4.2V.
No, it does not feature waterproofing.
When the device is identifying GPS, the timing of the buzzer is disrupted, causing it to sound somewhat unusual. This commonly occurs when the device is first started up, and it will return to normal after about one minute.
How to Flash Firmware
1. Connect the USB-C cable to the computer.
2. Press and hold the USER key, then press the RST key once. Release the USER key afterward.
3. Flash the new firmware.
4. After the firmware is successfully flashed, press the RST key to restart the device.
Note: The following content only applies to hardware V4.3 and above
- Meshtastic 2.7.20: On the device, use the PRG button to navigate to “System” → “LoRa”, where you can choose to enable or disable LNA.
- MeshCore 1.15.0: LNA is enabled by default and cannot be modified.
- You can download the firmware from this link, which has LNA disabled by default: LNA Disable
- With the firmware from this link, LNA can be toggled via button long press: LNA configurable
- We have submitted a PR. In the near future, official firmware will also support toggling LNA via command line or button.
In touch mode, the Bluetooth function cannot be used. Programming mode is only for Bluetooth firmware updates.
When you tap the “Bluetooth” option that appears on the shutdown button:
– Long press the “Bluetooth” icon to enter BASE UI mode, where Bluetooth companion mode can be used.
– Short press the “Bluetooth” icon to enter programming mode.
Docs & Resource
- [Attachment] — Firmware
- [Attachment] — L76K GNSS Module User Manual
- [Attachment] — Main board schematic diagraml
- [User Guide] — WiFi LoRa 32 Expansion Docs
Packing list
The default packing list without selecting any accessories is as follows:
| Item | Quantity |
|---|---|
| Housing | x1 |
| WiFi LoRa 32 V4 | x1 |
| Expansion Board | x1 |
| LoRa Antenna | x1 |
| 18650 lithium battery (Optional) | x1 |
| Back Clip | x1 |
Characteristics
| Weight | 159 g |
|---|---|
| Dimensions | 19.5 × 10.5 × 4.5 cm |
| LoRa Freq | 863-928MHz, 470-510MHz, 433MHz |
| TX Power | 21dBm, 28dBm |
| Front Panel | Tempered Glass, Touch Screen |
| Battery | YES, NO |
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WiFi LoRa 32 Expansion Kit V2
What's this?
The WiFi LoRa 32 Expansion Box Gen 2 is compatible with the latest WiFi LoRa 32 V4-R8. An TF card slot has been added. Buzzer and GNSS module are integrated by default.
Price range: $66.90 through $69.90
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