# project — Open Hardware Directory

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

**57 project listed.**

## Z80-MBC2 Emulator on LILYGO FabGL VGA32

A software emulation of the Z80-MBC2 homebrew computer running on the LILYGO FabGL VGA32, outputting to a real VGA monitor with PS/2 keyboard support and SD card storage.

[Details](https://openhardware.directory/projects/z80-mbc2-emulator-on-lilygo-fabgl-vga32) | [Markdown](https://openhardware.directory/projects/z80-mbc2-emulator-on-lilygo-fabgl-vga32/md)

## ESPectrum ZX Spectrum Emulator on VGA32

A cycle-accurate ZX Spectrum 48K/128K emulator for ESP32 boards with VGA output, featuring full sound emulation, PS/2 keyboard and joystick support, and SD card file management.

[Details](https://openhardware.directory/projects/espectrum-zx-spectrum-emulator-on-vga32) | [Markdown](https://openhardware.directory/projects/espectrum-zx-spectrum-emulator-on-vga32/md)

## C64 Emulator for T-HMI

A Commodore 64 emulator running on the LILYGO T-HMI's 2.8-inch touchscreen with BLE and web-based keyboard input, joystick support, SD card D64 disk images, and classic game playback.

[Details](https://openhardware.directory/projects/c64-emulator-for-t-hmi) | [Markdown](https://openhardware.directory/projects/c64-emulator-for-t-hmi/md)

## Bruce Firmware — Multi-Tool Security Platform

A feature-packed ESP32 security multi-tool firmware with sub-GHz RF capture/replay, IR, NFC, WiFi attacks, BLE, and BadUSB — often called the open-source Flipper Zero alternative with 5,000+ GitHub stars.

[Details](https://openhardware.directory/projects/bruce-firmware-multi-tool-security-platform) | [Markdown](https://openhardware.directory/projects/bruce-firmware-multi-tool-security-platform/md)

## USB Army Knife — Portable Penetration Testing Dongle

Turns the LILYGO T-Dongle S3 into a Swiss Army knife for close-access penetration testing with BadUSB, WiFi attacks, BLE scanning, HID injection, and network implant capabilities.

[Details](https://openhardware.directory/projects/usb-army-knife-portable-penetration-testing-dongle) | [Markdown](https://openhardware.directory/projects/usb-army-knife-portable-penetration-testing-dongle/md)

## CapibaraZero — Open-Source Flipper Zero Alternative

A ground-up open-source Flipper Zero alternative firmware for ESP32-S3 hardware, covering WiFi, BLE, BadUSB, NFC, sub-GHz (CC1101), and IR with clean architecture and web flasher.

[Details](https://openhardware.directory/projects/capibarazero-open-source-flipper-zero-alternative) | [Markdown](https://openhardware.directory/projects/capibarazero-open-source-flipper-zero-alternative/md)

## ATS-Mini — All-Band Radio Receiver Firmware for T-Embed SI4732

Community firmware for the LILYGO T-Embed SI4732 transforming it into a capable AM/FM/SW/SSB receiver with spectrum waterfall display, band scanning, memory presets, and modern touchscreen UI.

[Details](https://openhardware.directory/projects/ats-mini-all-band-radio-receiver-firmware-for-t-embed-si4732) | [Markdown](https://openhardware.directory/projects/ats-mini-all-band-radio-receiver-firmware-for-t-embed-si4732/md)

## uLisp T-Deck — Handheld Lisp Computer

Transforms the LILYGO T-Deck into a self-contained handheld Lisp computer with 1 million-object workspace, SD card persistence, graphics, WiFi, and speaker — write and run programs with no PC needed.

[Details](https://openhardware.directory/projects/ulisp-t-deck-handheld-lisp-computer) | [Markdown](https://openhardware.directory/projects/ulisp-t-deck-handheld-lisp-computer/md)

## Beryllium OS — Unix-Like Operating System for T-Deck

A unix-like operating system for CircuitPython microcontrollers with a real shell, package manager, background tasks, and GPIO/I2C/UART tools — turning the T-Deck into a tiny Linux-like computer.

[Details](https://openhardware.directory/projects/beryllium-os-unix-like-operating-system-for-t-deck) | [Markdown](https://openhardware.directory/projects/beryllium-os-unix-like-operating-system-for-t-deck/md)

## ESP32RET — CAN Bus Reverse Engineering Tool with SavvyCAN

Turns the LILYGO T-CAN485 into a sub-$15 professional CAN bus reverse engineering and sniffing tool with WiFi streaming to the SavvyCAN desktop analyzer, ELM327 emulation, and SD card logging.

[Details](https://openhardware.directory/projects/esp32ret-can-bus-reverse-engineering-tool-with-savvycan) | [Markdown](https://openhardware.directory/projects/esp32ret-can-bus-reverse-engineering-tool-with-savvycan/md)

## HackWatch — Wrist-Worn Security Tool for T-Watch 2020

Security-focused firmware for the T-Watch 2020 providing WiFi deauthentication detection, BLE device fingerprinting, and TV-B-Gone IR blaster — a penetration testing tool on your wrist.

[Details](https://openhardware.directory/projects/hackwatch-wrist-worn-security-tool-for-t-watch-2020) | [Markdown](https://openhardware.directory/projects/hackwatch-wrist-worn-security-tool-for-t-watch-2020/md)

## T-Dongle Ducky — WiFi-Controlled USB Rubber Ducky

Turns the LILYGO T-Dongle S3 into a WiFi-controlled USB Rubber Ducky for keystroke injection — execute DuckyScript payloads remotely via a web interface while the dongle sits plugged into the target.

[Details](https://openhardware.directory/projects/t-dongle-ducky-wifi-controlled-usb-rubber-ducky) | [Markdown](https://openhardware.directory/projects/t-dongle-ducky-wifi-controlled-usb-rubber-ducky/md)

## TamaFi — WiFi-Powered Virtual Pet

A Tamagotchi-inspired WiFi virtual pet for tiny ESP32 display boards — your pet's health depends on nearby WiFi networks, blending nostalgic virtual pet gameplay with wireless technology exploration.

[Details](https://openhardware.directory/projects/tamafi-wifi-powered-virtual-pet) | [Markdown](https://openhardware.directory/projects/tamafi-wifi-powered-virtual-pet/md)

## Launcher — Multi-Firmware Bootloader for ESP32 Devices

A firmware launcher that stores multiple firmware images on SD card and lets you switch between them on boot — run Bruce, Marauder, and other firmwares on the same device without reflashing.

[Details](https://openhardware.directory/projects/launcher-multi-firmware-bootloader-for-esp32-devices) | [Markdown](https://openhardware.directory/projects/launcher-multi-firmware-bootloader-for-esp32-devices/md)

## ESP32 Arduino Matter — Build Matter Smart Home Devices

The most popular community Matter library for Arduino — build Matter-compatible smart home lights, switches, and sensors on ESP32-C6/S3 that work natively with Apple Home, Google Home, and Alexa.

[Details](https://openhardware.directory/projects/esp32-arduino-matter-build-matter-smart-home-devices) | [Markdown](https://openhardware.directory/projects/esp32-arduino-matter-build-matter-smart-home-devices/md)

## ESP32 Marauder for T-Deck — Portable WiFi/BLE Security Suite

Port of the iconic ESP32 Marauder (10,000+ stars) WiFi and Bluetooth security toolkit to the T-Deck handheld — bringing packet sniffing, deauth detection, beacon spam, and PCAP capture to a keyboard device.

[Details](https://openhardware.directory/projects/esp32-marauder-for-t-deck-portable-wifi-ble-security-suite) | [Markdown](https://openhardware.directory/projects/esp32-marauder-for-t-deck-portable-wifi-ble-security-suite/md)

## ChameleonUltraGUI — Cross-Platform GUI for ChameleonUltra

Cross-platform GUI application built in Flutter for managing the ChameleonUltra and Chameleon Lite. Supports slot management, card reading, MIFARE cracking, and firmware updates across Windows, macOS, Linux, iOS, and Android.

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

## UWB Ranging & Localization with ESP32 DW3000

Getting started tutorial covering Ultra-Wideband ranging and localization using the Makerfabs ESP32 UWB DW3000 module with Arduino IDE, including anchor-tag setup and distance measurement.

[Details](https://openhardware.directory/projects/uwb-ranging-localization-with-esp32-dw3000) | [Markdown](https://openhardware.directory/projects/uwb-ranging-localization-with-esp32-dw3000/md)

## ChameleonUltra CLI — Python Command-Line Interface

Official Python CLI for the ChameleonUltra providing full device control, MIFARE cracking, card reading/writing, slot management, and scripting automation. The primary tool for power users and security professionals.

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

## Recording EEG From Visual Cortex Using BioAmp EXG Pill

Step-by-step tutorial for recording brainwaves from the visual cortex (O1/O2 positions) using BioAmp EXG Pill, Brain BioAmp Band, and an Arduino-compatible board with Spike Recorder visualization.

[Details](https://openhardware.directory/projects/recording-eeg-from-visual-cortex-using-bioamp-exg-pill) | [Markdown](https://openhardware.directory/projects/recording-eeg-from-visual-cortex-using-bioamp-exg-pill/md)

## Recording EEG From Prefrontal Cortex Using BioAmp EXG Pill

Tutorial for recording brainwaves from the prefrontal cortex (Fp1/Fp2 positions) using BioAmp EXG Pill and Brain BioAmp Band with Arduino Uno and Spike Recorder visualization.

[Details](https://openhardware.directory/projects/recording-eeg-from-prefrontal-cortex-using-bioamp-exg-pill) | [Markdown](https://openhardware.directory/projects/recording-eeg-from-prefrontal-cortex-using-bioamp-exg-pill/md)

## DW3000 Arduino Library (Simplified)

Community-built simplified DW3000 Arduino library for the Makerfabs ESP32 UWB DW3000, offering readable code with examples for SPI communication, TX/RX, and double-sided two-way ranging.

[Details](https://openhardware.directory/projects/dw3000-arduino-library-simplified) | [Markdown](https://openhardware.directory/projects/dw3000-arduino-library-simplified/md)

## Controlling LEDs With Your Mind (EEG) Using Arduino Uno R4

Build a brain-computer interface that reads EEG beta waves to illuminate LEDs on the Arduino Uno R4 LED matrix when you concentrate, using BioAmp EXG Pill and Brain BioAmp Band.

[Details](https://openhardware.directory/projects/controlling-leds-with-your-mind-eeg-using-arduino-uno-r4) | [Markdown](https://openhardware.directory/projects/controlling-leds-with-your-mind-eeg-using-arduino-uno-r4/md)

## Control the Flame of a Candle Using Your Focus (EEG)

A brain-computer interface project that uses EEG beta waves to control a virtual candle flame's brightness in real-time based on your concentration level, using Chords Web visualization.

[Details](https://openhardware.directory/projects/control-the-flame-of-a-candle-using-your-focus-eeg) | [Markdown](https://openhardware.directory/projects/control-the-flame-of-a-candle-using-your-focus-eeg/md)

## Chamele-o-nization — ChameleonUltra Security Research Guide

In-depth security research guide by Oscar Alfonso Diaz comparing the ChameleonUltra with the ChameleonMini RevE. Covers MIFARE Classic cracking techniques, dual-frequency capabilities, and practical usage for access control security testing.

[Details](https://openhardware.directory/projects/chamele-o-nization-security-guide) | [Markdown](https://openhardware.directory/projects/chamele-o-nization-security-guide/md)

## Controlling Video Game Using Brainwaves (EEG)

Build a brain-computer interface that classifies EEG signals into attentive and relaxed states to control a video game character, using machine learning with BioAmp EXG Pill and Python.

[Details](https://openhardware.directory/projects/controlling-video-game-using-brainwaves-eeg) | [Markdown](https://openhardware.directory/projects/controlling-video-game-using-brainwaves-eeg/md)

## Mastering High Accuracy Ranging with DW3000

Video tutorial by Adam S. covering DW3000 UWB fundamentals, Makerfabs ESP32 UWB module setup, time-of-flight ranging, Apple U1 interoperability, and indoor/outdoor accuracy testing.

[Details](https://openhardware.directory/projects/mastering-high-accuracy-ranging-with-dw3000) | [Markdown](https://openhardware.directory/projects/mastering-high-accuracy-ranging-with-dw3000/md)

## Mind-Controlled Gaming: Build Your Own BCI

Build a brain-computer interface using the BioAmp EXG Pill and Arduino Uno R4 that enables video game control through focus detection and eye blink sensing via EEG and EOG signals.

[Details](https://openhardware.directory/projects/mind-controlled-gaming-build-your-own-bci) | [Markdown](https://openhardware.directory/projects/mind-controlled-gaming-build-your-own-bci/md)

## TinkerRTK on Hackaday.io

Hackaday.io project page for TinkerRTK, documenting the open-source modular RTK GPS system with SkyTraq PX1105R receiver and ESP32-S3, featuring build logs, schematics, and community discussion.

[Details](https://openhardware.directory/projects/tinkerrtk-on-hackaday-io) | [Markdown](https://openhardware.directory/projects/tinkerrtk-on-hackaday-io/md)

## Brain-Controlled Car: EEG + EMG Robotic Control

Control a robotic car wirelessly using brain signals for forward/reverse movement and muscle signals for steering, combining EEG and EMG via BLE with NPG Lite and XIAO ESP32-C6.

[Details](https://openhardware.directory/projects/brain-controlled-car-eeg-emg-robotic-control) | [Markdown](https://openhardware.directory/projects/brain-controlled-car-eeg-emg-robotic-control/md)

## Exploring RFID/NFC — ChameleonUltra Unboxing and Setup Guide

Beginner-friendly walkthrough by Cesar Calderon covering the ChameleonUltra unboxing, initial setup, and first steps with NFC/RFID technology. Ideal for newcomers getting started with RFID security tools.

[Details](https://openhardware.directory/projects/chameleon-ultra-unboxing-setup-guide) | [Markdown](https://openhardware.directory/projects/chameleon-ultra-unboxing-setup-guide/md)

## Playing Games With Your Mind Using Arduino Uno R4

Use BioAmp EXG Pill and Brain BioAmp Band with Arduino Uno R4 to play games using brainwave-based focus detection and eye blink control for a hands-free gaming experience.

[Details](https://openhardware.directory/projects/playing-games-with-your-mind-using-arduino-uno-r4) | [Markdown](https://openhardware.directory/projects/playing-games-with-your-mind-using-arduino-uno-r4/md)

## ESP32 UWB Tag and Anchor Ranging Example

Basic UWB ranging example for Makerfabs ESP32 UWB boards. One module acts as an anchor, another as a tag, measuring point-to-point distance using DW1000 Two-Way Ranging with ~20 cm accuracy.

[Details](https://openhardware.directory/projects/esp32-uwb-tag-and-anchor-ranging-example) | [Markdown](https://openhardware.directory/projects/esp32-uwb-tag-and-anchor-ranging-example/md)

## ChameleonUltra vs Proxmark3 — RFID Tool Comparison

Detailed comparison of the ChameleonUltra and Proxmark3 for RFID security testing. Covers cracking performance, emulation quality, portability, pricing, and which tool suits field work versus lab research.

[Details](https://openhardware.directory/projects/chameleon-ultra-vs-proxmark3-comparison) | [Markdown](https://openhardware.directory/projects/chameleon-ultra-vs-proxmark3-comparison/md)

## EEG Band-Pass Filter for Clean Brain Signal Acquisition

Arduino firmware sketch that applies a 0.5-29.5 Hz 4th-order Butterworth band-pass filter to raw EEG data for clean electroencephalography recording with BioAmp EXG Pill.

[Details](https://openhardware.directory/projects/eeg-band-pass-filter-for-clean-brain-signal-acquisition) | [Markdown](https://openhardware.directory/projects/eeg-band-pass-filter-for-clean-brain-signal-acquisition/md)

## ESP32 DW1000 UWB Indoor Positioning System Tutorial

Step-by-step tutorial from how2electronics covering indoor positioning with ESP32 and DW1000 UWB modules. Covers anchor/tag setup, distance measurement, and 2D location calculation using Makerfabs boards.

[Details](https://openhardware.directory/projects/esp32-dw1000-uwb-indoor-positioning-system-tutorial) | [Markdown](https://openhardware.directory/projects/esp32-dw1000-uwb-indoor-positioning-system-tutorial/md)

## BrainBay EEG Visualization With BioAmp Hardware

Connect BioAmp EXG Pill and Brain BioAmp Band to BrainBay open-source biosignal processing software for real-time EEG and EMG visualization on Windows.

[Details](https://openhardware.directory/projects/brainbay-eeg-visualization-with-bioamp-hardware) | [Markdown](https://openhardware.directory/projects/brainbay-eeg-visualization-with-bioamp-hardware/md)

## Getting Started with ESP32 DW1000 UWB Module

Beginner tutorial from how2electronics introducing UWB technology with the Makerfabs ESP32 DW1000 module. Covers basic setup, first ranging measurements, and understanding UWB fundamentals.

[Details](https://openhardware.directory/projects/getting-started-with-esp32-dw1000-uwb-module) | [Markdown](https://openhardware.directory/projects/getting-started-with-esp32-dw1000-uwb-module/md)

## Chords Web: Browser-Based Biosignal Visualization

Transform your Arduino into a biosignal acquisition tool with Chords Web, visualizing and recording EEG, EMG, EOG, and ECG data directly in your browser using BioAmp hardware.

[Details](https://openhardware.directory/projects/chords-web-browser-based-biosignal-visualization) | [Markdown](https://openhardware.directory/projects/chords-web-browser-based-biosignal-visualization/md)

## Chords Python: Record Biosignal Data From BioAmp Hardware

Python tool for recording and streaming EEG, EMG, EOG, and ECG data from BioAmp hardware including Brain BioAmp Band, with LSL streaming and CSV export support.

[Details](https://openhardware.directory/projects/chords-python-record-biosignal-data-from-bioamp-hardware) | [Markdown](https://openhardware.directory/projects/chords-python-record-biosignal-data-from-bioamp-hardware/md)

## Capacitive Soil Moisture Measuring with I2C (ATtiny85)

Instructables tutorial by diy_bloke for building a DIY capacitive soil moisture sensor with I2C output using an ATtiny85. Inspired by the Chirp sensor, it covers PCB construction, firmware, and Arduino master code.

[Details](https://openhardware.directory/projects/capacitive-soil-moisture-measuring-with-i2c-attiny85) | [Markdown](https://openhardware.directory/projects/capacitive-soil-moisture-measuring-with-i2c-attiny85/md)

## Armachat Compact User Guide

Community-maintained documentation for the Armachat Compact, including a quick start guide, bill of materials, board overview, assembly instructions, and developer resources for building your own LoRa messenger.

[Details](https://openhardware.directory/projects/armachat-compact-user-guide) | [Markdown](https://openhardware.directory/projects/armachat-compact-user-guide/md)

## EvilCrowRF Custom Firmware with Flipper Zero Compatibility

Alternative firmware for Evil Crow RF V2 adding Flipper Zero .SUB file support, Kaiju signal analysis, rolljam/rollback attacks, frequency scanner, and a 34+ protocol brute-force engine with a redesigned web interface.

[Details](https://openhardware.directory/projects/evilcrowrf-custom-firmware-with-flipper-zero-compatibility) | [Markdown](https://openhardware.directory/projects/evilcrowrf-custom-firmware-with-flipper-zero-compatibility/md)

## Micro Journal on Hackster.io — WriterDeck Experience Overview

Hackster.io coverage of the Micro Journal project by Un Kyu Lee, documenting the evolution from phone-based Rev.3 Nadia to modular ESP32 revisions, with custom distraction-free writing firmware and Google Drive sync.

[Details](https://openhardware.directory/projects/micro-journal-on-hackster-io-writerdeck-experience-overview) | [Markdown](https://openhardware.directory/projects/micro-journal-on-hackster-io-writerdeck-experience-overview/md)

## ESP Audio Boards v2 and Louder ESP32 on Hackaday

Hackaday.io project documenting the Louder ESP32 and ESP32 Audio Boards v2 series by Sonocotta, with hardware design logs, firmware guides, and community discussion.

[Details](https://openhardware.directory/projects/esp-audio-boards-v2-louder-esp32-hackaday) | [Markdown](https://openhardware.directory/projects/esp-audio-boards-v2-louder-esp32-hackaday/md)

## EvilCrowRF V2 BLE Mobile App Firmware with nRF24 Support

Complete firmware suite for Evil Crow RF V2 with BLE-based mobile app control via Flutter, 33+ protocol brute-force with De Bruijn sequences, nRF24 attack capabilities, and Python spectrum analysis utilities.

[Details](https://openhardware.directory/projects/evilcrowrf-v2-ble-mobile-app-firmware-with-nrf24-support) | [Markdown](https://openhardware.directory/projects/evilcrowrf-v2-ble-mobile-app-firmware-with-nrf24-support/md)

## Hackaday Feature — ESP32 Distraction-Free Writing with Micro Journal

Hackaday coverage of the Micro Journal writerDeck project, detailing the custom ESP32 text editor firmware with Google Drive sync, handwired ortholinear keyboard build, and community discussion around distraction-free writing devices.

[Details](https://openhardware.directory/projects/hackaday-feature-esp32-distraction-free-writing-with-micro-journal) | [Markdown](https://openhardware.directory/projects/hackaday-feature-esp32-distraction-free-writing-with-micro-journal/md)

## ESP32-DIV

Open-source wireless network analysis tool built on ESP32 with 2.8" ILI9341 display, triple NRF24 modules for 2.4GHz scanning, CC1101 sub-GHz transceiver, and SD card logging.

[Details](https://openhardware.directory/projects/esp32-div) | [Markdown](https://openhardware.directory/projects/esp32-div/md)

## ECRFV2 Dual Jammer — Simultaneous Dual-Frequency RF Jamming

Lightweight jamming firmware for Evil Crow RF V2 that uses both CC1101 modules simultaneously to jam two different sub-GHz frequencies at once, with simple two-button physical controls.

[Details](https://openhardware.directory/projects/ecrfv2-dual-jammer-simultaneous-dual-frequency-rf-jamming) | [Markdown](https://openhardware.directory/projects/ecrfv2-dual-jammer-simultaneous-dual-frequency-rf-jamming/md)

## EvilCrowPyRF — Python CLI for RF Signal Management

Python command-line tool for managing Evil Crow RF signal captures, enabling scripted receive, transmit, save, and replay operations with support for Tesla signals, jamming, and button assignment.

[Details](https://openhardware.directory/projects/evilcrowpyrf-python-cli-for-rf-signal-management) | [Markdown](https://openhardware.directory/projects/evilcrowpyrf-python-cli-for-rf-signal-management/md)

## DIY Evil Crow RF V2 el Cheapo — Budget PCB Build from Scratch

Open-source custom PCB design for building an Evil Crow RF V2 clone from off-the-shelf parts including an ESP32 DevKit, two CC1101 modules, and a MicroSD card reader, with gerber files for PCB fabrication.

[Details](https://openhardware.directory/projects/diy-evil-crow-rf-v2-el-cheapo-budget-pcb-build-from-scratch) | [Markdown](https://openhardware.directory/projects/diy-evil-crow-rf-v2-el-cheapo-budget-pcb-build-from-scratch/md)

## Bee Data Logger Getting Started with CircuitPython

Complete beginner guide to setting up the Bee Data Logger with CircuitPython. Covers flashing firmware, using the RGB LED, reading the RTC, listing SD card files, monitoring battery voltage, and detecting USB power.

[Details](https://openhardware.directory/projects/bee-data-logger-getting-started-with-circuitpython) | [Markdown](https://openhardware.directory/projects/bee-data-logger-getting-started-with-circuitpython/md)

## Evil Crow RF V2 Setup and RF Attack Tutorial

Step-by-step tutorial covering Evil Crow RF V2 firmware installation on Ubuntu, upgrading to custom firmware via OTA, and practical demonstrations of RF signal jamming and replay attacks with RTL-SDR verification.

[Details](https://openhardware.directory/projects/evil-crow-rf-v2-setup-and-rf-attack-tutorial) | [Markdown](https://openhardware.directory/projects/evil-crow-rf-v2-setup-and-rf-attack-tutorial/md)

## Armachat LoRa Doomsday Communicator

Open-source off-grid LoRa QWERTY communicator for long-range text messaging without infrastructure. Features automatic message resending, contact management, and 4+ km range. Winner of Hackaday Prize 2020.

[Details](https://openhardware.directory/projects/armachat-lora-doomsday-communicator) | [Markdown](https://openhardware.directory/projects/armachat-lora-doomsday-communicator/md)

## Bee Data Logger PlatformIO and Arduino Setup Guide

Set up the Bee Data Logger with PlatformIO and the Arduino framework. Install the BeeDataLogger Arduino Helper library and explore examples for battery monitoring, RGB LED control, RTC, ADC reading, and SD card logging.

[Details](https://openhardware.directory/projects/bee-data-logger-platformio-and-arduino-setup-guide) | [Markdown](https://openhardware.directory/projects/bee-data-logger-platformio-and-arduino-setup-guide/md)

## Armachat CircuitPython LoRa Messenger

CircuitPython-based LoRa messenger firmware for Armachat devices, running on both ESP32-S3 and Raspberry Pi Pico with a 2.8\" IPS display, RFM95 radio, and fully open-source transparent code.

[Details](https://openhardware.directory/projects/armachat-circuitpython-lora-messenger) | [Markdown](https://openhardware.directory/projects/armachat-circuitpython-lora-messenger/md)

## Build an Armachat LoRa Communicator (Make: Magazine)

Step-by-step Make: Magazine tutorial for building the Armachat LoRa communicator — a battery-powered text walkie-talkie with QWERTY keyboard, RFM95 radio, and 4+ km range using only ~25 components.

[Details](https://openhardware.directory/projects/armachat-lora-communicator-make-magazine) | [Markdown](https://openhardware.directory/projects/armachat-lora-communicator-make-magazine/md)