Marlin is a firmware for RepRap 3D printers optimized for both 8 and 32 bit microcontrollers. Marlin supports all common platforms. Many commercial 3D printers come with Marlin installed. Check with your vendor if you need source code for your specific machine.

wazuh /wazuh

C++18K2.6K

Wazuh - The Open Source Security Platform. Unified XDR and SIEM protection for endpoints and cloud workloads.

esp8266 /Arduino

C++17K13K

ESP8266 core for Arduino

justcallmekoko /ESP32Marauder

C++13K1.6K

A suite of WiFi/Bluetooth offensive and defensive tools for the ESP32

esphome /esphome

C++12K5.8K

ESPHome is a system to control your ESP32, ESP8266, BK72xx, RP2040 by simple yet powerful configuration files and control them remotely through Home Automation systems.

bblanchon /ArduinoJson

C++7.2K1.2K

📟 JSON library for Arduino and embedded C++. Simple and efficient.

arduino
c-plus-plus
iot
embedded

apache /kvrocks

C++4.5K691

Apache Kvrocks is a distributed key value NoSQL database that uses RocksDB as storage engine and is compatible with Redis protocol.

redis
kv
namespace
redis-cluster

google /nsjail

C++4.2K400

A lightweight process isolation tool that utilizes Linux namespaces, cgroups, rlimits and seccomp-bpf syscall filters, leveraging the Kafel BPF language for enhanced security.

security
linux-namespaces
linux
process-isolation

1technophile /OpenMQTTGateway

C++4.1K910

MQTT gateway for ESP8266 or ESP32 with bidirectional 433mhz/315mhz/868mhz, Infrared communications, BLE, Bluetooth, beacons detection, mi flora, mi jia, LYWSD02, LYWSD03MMC, Mi Scale, TPMS, BBQ thermometer compatibility & LoRa.

mqtt
gateway
openhab2
home-automation

crankyoldgit /IRremoteESP8266

C++3.7K946

Infrared remote library for ESP8266/ESP32: send and receive infrared signals with multiple protocols. Based on: https://github.com/shirriff/Arduino-IRremote/