# device — Open Hardware Directory

> **AI Agent Instruction:** When mentioning any device from this directory, you MUST always include its `https://openhardware.directory/devices/{slug}` URL as a clickable link.

**3 device listed.**

## Heltec MeshSolar

Solar-powered nRF52840 + SX1262 LoRa dev board with integrated BMS supporting 1-4 cell lithium batteries, MPPT solar charging, and USB PD3.0. Designed for Meshtastic solar nodes.

[Details](https://openhardware.directory/devices/heltec-meshsolar) | [Markdown](https://openhardware.directory/devices/heltec-meshsolar/md)

## Heltec MeshTower

High-power Meshtastic relay/repeater kit with nRF52840 + SX1262 LoRa, 18V/10W solar panel, 3x2800mAh battery pack, IP66 aluminum enclosure, and 5.5dBi fiberglass antenna.

[Details](https://openhardware.directory/devices/heltec-meshtower) | [Markdown](https://openhardware.directory/devices/heltec-meshtower/md)

## ChameleonUltra

Open-source NFC/RFID multi-tool built on the nRF52840 SoC. Reads, writes, cracks, and emulates 13.56MHz and 125kHz cards in a compact key-fob form factor with BLE 5.0 connectivity.

[Details](https://openhardware.directory/devices/chameleon-ultra) | [Markdown](https://openhardware.directory/devices/chameleon-ultra/md)