esp-nimble-cpp Projects

An ESP32-based pixel-art virtual pet platform for M5Stack devices that reflects live metrics from sources like Datadog and PostHog. The system uses a Python-powered hub to communicate over BLE or MQTT, allowing the mascot to react to technical telemetry or AI agent activity. It is built using the Arduino framework on FreeRTOS and features a modular configuration system for custom assets and HID functionality.

NRSuite is a modular wireless research toolkit that offloads the radio layer to an ESP32 connected via USB OTG to an unrooted Android device. It enables advanced Wi-Fi operations, BLE HID emulation, and BadUSB functionality within the Termux environment using a custom binary bridge protocol.

An ESP32-powered emulator for the Berbel BFB 6bT remote control, designed to integrate Berbel kitchen hoods into smart home environments. It features real-time status decoding, MQTT auto-discovery for Home Assistant, and utilizes the NimBLE stack to optimize memory usage.

A passive RF scanner for the M5Cardputer ADV that detects Flock Safety ALPR cameras and Raven surveillance devices. It utilizes WiFi promiscuous mode and BLE scanning on the ESP32-S3, running entirely locally without cloud connectivity. Detections are logged to an SD card with GPS coordinates and signal strength visualizations.

CrumBLE is an advanced e-reader firmware for the Xteink X4 and X3, built on the ESP32-C3 platform using the Arduino framework and NimBLE. It provides enhanced Bluetooth Low Energy (BLE) remote support, a customizable collections system, and optimized e-ink rendering through specialized image pre-caching.

M5_Crystal is a modular firmware for M5Stack devices like the M5StickCPlus2 and Cardputer, providing a suite of tools for Wi-Fi, NFC, and Bluetooth interaction. It utilizes the M5Unified and M5GFX libraries for hardware abstraction and is built on a custom wrapper system designed for rapid feature development.

GhostBLE is a portable BLE privacy scanner and wardriving application designed for the M5Stack ecosystem, including the Cardputer and StickC series. Leveraging the NimBLE-Arduino library on the ESP32 platform, it provides real-time analysis of Bluetooth Low Energy devices, privacy posture heuristics, and GPS-tagged logging for security research and education.

A keyboard-focused pentesting firmware for the M5Stack Cardputer-Adv (ESP32-S3) offering over 90 features across WiFi, BLE, sub-GHz, and LoRa. It utilizes FreeRTOS and the NimBLE stack to coordinate complex wireless attacks, including 5 GHz deauthentication and Zigbee sniffing via a companion ESP32-C5 node.

Flock-Detector 3.0 is a specialized surveillance detection system designed for the Seeed Studio XIAO ESP32-S3 to identify and log WiFi and BLE signatures from ALPR cameras and gunshot detectors. The firmware utilizes FreeRTOS for dual-core task management, pairing WiFi promiscuous mode and NimBLE-based BLE scanning with real-time GPS tagging. It features a weighted confidence scoring engine, persistent session storage via LittleFS, and an OLED-based interface for field use.

ESP-HACK is a versatile wireless research and pentesting firmware for the ESP32 platform, targeting Sub-GHz, Bluetooth, and Infrared protocols. It utilizes the Arduino framework and NimBLE stack to provide tools for signal analysis, protocol exploration, and GPIO integrations. The project is designed for use with custom hardware including CC1101 transceivers and OLED displays.

A comprehensive Bluetooth Low Energy (BLE) HID keyboard library for the ESP32, built on the NimBLE-Arduino stack for high efficiency. It supports standard keyboard layouts, media keys, and advanced power management features including light and deep sleep. The library is designed for creating physical or emulated HID devices compatible with iOS, Android, macOS, Windows, and Linux.

A library for ESP32 Arduino that implements the Nordic UART Service (NUS) to provide a HardwareSerial-compatible BLE interface. It supports both the standard ESP32 BLE stack and the memory-efficient NimBLE-Arduino library, while offering optional integration with the Embedded Template Library (ETL) for deterministic memory management.

Gaggimate is an ESP32-based smart control upgrade for Gaggia espresso machines, providing a custom UI for temperature monitoring and pump control. It leverages the FreeRTOS-based ESP32 platform using LVGL and TFT_eSPI for its display interface, and NimBLE-Arduino for wireless connectivity.

This project transforms an ESP32 into a bridge between wired USB peripherals and Bluetooth-enabled hosts. By combining software-defined USB host capabilities with the NimBLE stack, it allows standard USB keyboards and mice to function as wireless BLE devices across multiple operating systems.

NimBLE OTA is a specialized library for ESP32 devices that enables firmware updates over Bluetooth Low Energy (BLE). It leverages the memory-efficient NimBLE stack to provide a robust OTA service, featuring secure authentication, progress tracking, and compatibility with both Python-based and web-based upload tools.

An ESP32-based firmware that extracts vehicle data via an ELM327 OBD2 adapter and transmits it to an MQTT broker over cellular networks. Designed for Home Assistant integration, it supports a wide range of LilyGO T-Call and Waveshare modules with integrated GSM/LTE and GPS capabilities.

A versatile ESP32-based firmware designed for offensive security and Red Team operations. It supports a wide range of hardware including M5Stack and Lilygo devices, providing features for WiFi attacks, BLE manipulation, RF/RFID interaction, and a built-in JavaScript interpreter.

A high-performance ESP32 firmware for DCS World cockpit panels using the DCS-BIOS protocol. It supports native USB HID, WiFi, and Serial transports while providing drivers for various displays, LEDs, and input devices with a focus on static memory allocation and non-blocking I/O.

An intelligent arousal management system for ESP32 that connects to Lovense devices via Bluetooth LE. It uses a pressure sensor for automated edging control and features a real-time web dashboard for monitoring and configuration.

Firmware for an ESP32-C6 based E-Paper display device featuring BLE provisioning, AWS IoT connectivity, and OTA updates. It targets the Spectra 6 7.3-inch display and integrates motion sensing via the KXTJ3-1057 accelerometer.

A firmware project for ESP32-S3 that acts as a USB-to-BLE HID bridge, allowing Bluetooth controllers like the Xbox Wireless Controller to be used with the Nintendo Switch. It utilizes ESP-IDF, FreeRTOS, and the TinyUSB stack to emulate a Nintendo Switch Pro Controller over USB while acting as a BLE GATT client.

A multi-platform LoRa Terminal Node Controller (TNC) firmware supporting ESP32, nRF52, RP2040, and STM32. It provides a serial CLI for raw LoRa interaction, BLE packet sniffing, and a KISS-TNC mode for APRS, AX.25, and IP-over-LoRa networking.

An ESP32-C3 based smart thermos that measures liquid temperature using an NTC thermistor and displays it on a 1.28-inch round capacitive touch screen. The project utilizes the LVGL library for its user interface and NimBLE for Bluetooth connectivity.

A comprehensive open-source firmware for the LilyGo TWatch 2020 series based on the ESP32 and Arduino framework. It features a custom UI engine, Lua scripting, BLE/WiFi connectivity, and integration with Gadgetbridge for smartphone notifications.

An ESP32-based open-source universal remote firmware utilizing the Arduino framework and LVGL for its graphical user interface. It supports device control via Infrared, Bluetooth Low Energy keyboard emulation, and MQTT for smart home integration, featuring a cross-platform simulator for desktop-based UI development.

A portable suite of WiFi and Bluetooth offensive and defensive tools built for the ESP32 microcontroller. It enables security researchers to perform packet sniffing, beacon spamming, and network analysis through a dedicated handheld interface utilizing the Arduino framework.