# 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.

**4 device listed.**

## Heltec HT-HC32 Wi-Fi HaLow Camera

ESP32-S3 development board with integrated camera and Wi-Fi HaLow (802.11ah) module for long-range wireless video transmission up to 1-2km at speeds up to 32 Mbps. Features USB-C, SD card slot, and LiPo battery charging.

[Details](https://openhardware.directory/devices/heltec-ht-hc32) | [Markdown](https://openhardware.directory/devices/heltec-ht-hc32/md)

## BigTreeTech Panda Touch

5-inch 800x480 IPS WiFi touchscreen for Bambu Lab X1, P1, and A1 series 3D printers. ESP32-S3 based, 16MB flash, 8MB PSRAM, built-in battery for portable use, supports up to 4 printers simultaneously.

[Details](https://openhardware.directory/devices/bigtreetech-panda-touch) | [Markdown](https://openhardware.directory/devices/bigtreetech-panda-touch/md)

## BigTreeTech K-Touch

5-inch 800x480 IPS WiFi touchscreen controller for Klipper printers. ESP32-S3 based, 16MB flash, 8MB PSRAM, built-in battery for 30 minutes portable use, supports up to 50 Klipper printers.

[Details](https://openhardware.directory/devices/bigtreetech-k-touch) | [Markdown](https://openhardware.directory/devices/bigtreetech-k-touch/md)

## BigTreeTech KNOMI 2

1.28-inch round 240x240 LCD display for Voron StealthBurner toolhead. ESP32 MCU with WiFi and Bluetooth LE, shows print status, temperatures, and progress with customizable animated UI.

[Details](https://openhardware.directory/devices/bigtreetech-knomi-2) | [Markdown](https://openhardware.directory/devices/bigtreetech-knomi-2/md)