Software for Your Open Hardware

DIY compact Meshtastic communicator build using the Heltec Wireless Tracker with ESP32-S3, SX1262 LoRa, GPS, and a push-button keyboard for off-grid mesh messaging and GPS tracking.

Tasmota firmware configuration for the Louder ESP32 with I2S audio support, enabling MQTT-controlled audio playback for Domoticz, OpenHAB, and other MQTT-based home automation systems.

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.

A retro-styled multimeter interface for the LILYGO T-Display S3 using an INA219 power sensor, displaying voltage, current, temperature, humidity, pressure, RTC time, and resistance on a classic LCD-style UI.

Guide to integrating Meshtastic mesh networking protocol with the Armachat communicator, enabling multi-hop message relay, store-and-forward routing, and interoperability with the broader Meshtastic network.

Open firmware that transforms LoRa boards into flexible encrypted radio interfaces for the Reticulum Network Stack — enabling unstoppable mesh networking over LoRa, WiFi, and packet radio.

A portable CSIRT forensics tool on the LILYGO T-Dongle S3 that automates evidence collection from Windows, Linux, and macOS via USB HID keyboard emulation — with triage, containment, and collection modes shown on the 0.96" display.

Arduino board support package for STM32L0-based LoRaWAN devices including the Gnat, Grasshopper, and Cricket, enabling Arduino IDE programming with LoRaWAN and GNSS libraries.

A feature-rich UI for the LILYGO T5 E-Paper S3 Pro combining weather display, LoRa SX1262 radio, touch navigation, and MagSafe charging support on a 4.7" 16-gray e-paper screen.

Community bulk-buy and buildathon of 30 ADX QRP transceiver kits organized by the Radio and Electronics Association of Southern Tasmania (REAST) with custom REAST-branded PCBs and guided build sessions.

Convert cloud-dependent Tuya WiFi devices to local-only control with Tasmota. Covers flashing, dpId mapping, and full control of dimmers, plugs, fans, thermostats, and RGB lights via MQTT.

A phone-inspired LVGL UI firmware for the LILYGO T-Deck Pro that turns the e-paper + LTE handheld into a functional phone interface with cellular modem support, GPS, touch, audio, and a web-based UI built with PlatformIO.

A SquareLine Studio–designed LVGL smart watch demo ported to the LILYGO T-Encoder Pro's AMOLED display, using a lean custom SH8601 display driver and CHSC5816 touch driver — a ready-to-extend firmware template.

Automate roller blinds with Tasmota using a Sonoff Dual R3 or Shelly Plus 2PM. Supports AC/DC motors and stepper motors with position tracking, MQTT control, and Home Assistant cover integration.

Official Tasmota driver (I2cDriver33) for the Chirp / Catnip I2C soil moisture sensor. Supports auto-discovery of multiple sensors, sleep/wake control, and I2C address management on ESP8266 and ESP32.

Community-designed 3D printable cases and accessories for the Oui-Spy including a travel case, antenna case with SMA adapter slot, keychain mount, and tactical Yagi grip with Picatinny rail.

Community-developed C++ firmware for the Pine64 PineTime smartwatch built on FreeRTOS. Features BLE notifications, step counting, heart rate monitoring, multiple watch faces, and OTA updates with 3,200+ GitHub stars.

Real-time indoor positioning demo using 3 ESP32 UWB modules (2 anchors + 1 tag) with trilateration, UDP data streaming, and Python-based position visualization on PC.

An e-paper console combining OpenWeatherMap forecasts with Domoticz home automation sensor data on a LILYGO T5 4.7" display, with configurable device IDX mapping.

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.

A minimal plain-text e-reader firmware for the LILYGO T-Deck Pro that reads .txt files from an SD card on the built-in e-paper display, with persistent page indexing, word wrap, and keyboard navigation.

Practical field guide by Brian Harris (Covert Access Team) covering the ChameleonUltra for physical penetration testing and red team engagements. Evaluates real-world badge cloning, discreet carry, and operational use alongside Proxmark3.

Full-featured plant monitoring application for the LILYGO T-Higrow with a local web UI, 24-hour charts, CSV data logging, MQTT auto-discovery for Home Assistant, and deep sleep for battery operation.

Modern, open-source wireless keyboard firmware built on Zephyr RTOS with BLE-first architecture, split keyboard support, and MIT license. The dominant firmware for wireless mechanical keyboards with 3,900+ GitHub stars.

Developer Cassidy Williams documents her Micro Journal build experience, featuring custom DSS Tecla keycaps, lubricated NK Dry Black switches, a personalized keymap, and a custom loading screen on the ESP32-based writerDeck.