Open Source C IoT Software
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C IoT Software
View 270 business solutionsBrowse free open source C IoT Software and projects below. Use the toggles on the left to filter open source C IoT Software by OS, license, language, programming language, and project status.
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Eclipse Mosquitto
Eclipse Mosquitto - An open source MQTT broker
Eclipse Mosquitto is an open-source MQTT message broker from the Eclipse ecosystem. It implements MQTT versions 5.0, 3.1.1, and 3.1 for lightweight publish-and-subscribe communication. The project is designed for IoT, machine-to-machine messaging, telemetry, home automation, embedded devices, and distributed systems that need efficient event delivery. It includes the broker itself, C and C++ client libraries, and command-line tools for publishing, subscribing, request-response testing, password management, broker control, and signaling. Mosquitto is portable and can run on small devices, servers, containers, and many operating systems. Its main value is providing a mature, lightweight, widely adopted MQTT implementation for reliable messaging in constrained and production environments. -
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Zephyr Project
Scalable, optimized, secure RTOS for multiple hardware architectures
The Zephyr Project is a new generation real-time operating system (RTOS) that supports multiple hardware architectures. It is based on a small-footprint kernel specially designed for use on resource-constrained and embedded systems. The Zephyr OS can be used for a wide range of applications: from simple embedded environmental sensors and LED wearables to sophisticated embedded controllers, smart watches, and IoT wireless applications. -
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Mongoose OS
IoT firmware development framework
Mongoose OS, an IoT Firmware Development Framework. Supported microcontrollers, ESP32, ESP8266, CC3220, CC3200, STM32F4, STM32L4, STM32F7. Amazon AWS IoT, Microsoft Azure, Google IoT Core integrated. Code in C or JavaScript. Mongoose OS is integrated and powers many types of devices and appliances globally. Microsoft Azure IoT recommends Mongoose OS for OTA, automatic device management and deploying firmware updates at scale. Built-in flash encryption, crypto chip support, ARM mbedTLS optimized for small memory footprint. Device management dashboard service. Supported microcontrollers are CC3220, CC3200, ESP32, ESP8266, STM32F4, STM32L4, STM32F7. Recommended dev kits are ESP32-DevKitC for AWS IoT, ESP32 Kit for Google IoT Core. -
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Arm Mbed OS
Platform operating system designed for the Internet of Things
Arm Mbed OS is an open source embedded operating system specifically designed for the Internet of Things. It’s packed with all the features you need to develop your next IoT product based on an Arm Cortex-M microcontroller efficiently, securely and rapidly. These include security foundations, cloud management services, and drivers for sensors and I/O devices. -
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AWS IoT Device SDK for Embedded C
SDK for connecting to AWS IoT from a device using embedded C
The AWS IoT Device SDK for Embedded C (C-SDK) is a collection of C source files under the MIT open source license that can be used in embedded applications to securely connect IoT devices to AWS IoT Core. It contains MQTT client, HTTP client, JSON Parser, AWS IoT Device Shadow, AWS IoT Jobs, and AWS IoT Device Defender libraries. This SDK is distributed in source form and can be built into customer firmware along with application code, other libraries, and an operating system (OS) of your choice. These libraries are only dependent on standard C libraries, so they can be ported to various OS's - from embedded Real-Time Operating Systems (RTOS) to Linux/Mac/Windows. You can find sample usage of C-SDK libraries on POSIX systems using OpenSSL (e.g. Linux demos in this repository), and on FreeRTOS using mbedTLS (e.g. FreeRTOS demos in the FreeRTOS repository). The coreHTTP library provides the ability to establish an HTTP connection with a server over a customer-implemented transport layer. -
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JSTx is used for displaying overlay graphics and text on top of a Philips television, changing channels, receiving remote control keys and changing television display modes. It is a command line utility to execute jointSPACE commands on a device that supports the jointSPACE protocol for Philips televisions (see http://jointspace.sourceforge.net for details on jointSPACE, which is based on DirectFB). It is used in various home automation/internet-of-things projects. There are three versions: 0.23 for 2009/2010 Philips televisions (xxx5 en xxx4 series), 0.24 for 2011-2012 televisions (xxx6-xxx7) and 0.24_2013 for 2013-2014 televisions (xxx8-xxx9 (only non-Android)). New Android sets (2014+) do not come with Jointspace and are not supported. It works on Linux operating systems. A Raspberry-Pi version is also available.
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ESP Easy
Arduino IDE sketch for ESP8266 modules
Firmware for ESP8266 modules. http://www.esp8266.nu/index.php/Tutorial_ESPEasy_Firmware_Upload Use an ESP8266 module as a wireless sensor for temperature, humidity, barometric pressure, LUX, etc. Or use it as an actuator to control Relays. Supports the following Home Automation platform protocols: * Domoticz HTTP * Domoticz MQTT * OpenHAB MQTT * PiDome MQTT * Nodo Telnet * ThingSpeak webservice * EmonCMS * FHEM HTTP * Generic HTTP using templates Supported devices: * DS18B20 * DHT11 * DHT22 * BH1750 * BMP085 * Wiegand RFID * PN532 * SI7021 * TSL2516 * HCSR04 * TSOP4838 IR * MCP23017 * PCF8591 * PCA9685 * LCD and OLED displays * BME280 * INA219 * MLX90614 * ADS1115 * MSP5611 * BMP280 * SHT1x The ESP is web configurable for both Wifi setup and device configuration. For support: - have a look at the wiki on www.esp8266.nu - join our forum on www.esp8266.nu/forum -
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HAM_Activity_Monitor
HAM activity monitor for digital modes like FT8 and FT4
Monitor for activity of HAM radio digital modes like FT4 or FT8. The data is subsribed at pskreporter.info and presented on the RLCD. Different pages are presented for data aggregation types. Alarming when the band opens up. Histogram of connections made over the different bands with max. distance and antenna direction. -
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PeekESP
Cross-platform system monitoring for Android and ESP32.
PeekESP is a cross-platform system monitoring tool that brings remote system metrics to Android home-screen widgets, dedicated ESP32 desk displays, Raspberry Pi screens, desktop hosts, and Home Assistant. It allows you to monitor CPU, memory, storage, temperature, uptime, and network throughput seamlessly across multiple devices. Operating through a lightweight Cloudflare Worker relay with zero accounts or complex port-forwarding required, PeekESP uses simple local pairing codes to connect agents and viewers securely. It supports Windows, Linux/DietPi, macOS, and Android, letting you keep tabs on your hardware effortlessly. -
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C-GM Counter
Connected GM Counter device (IoT) for radioactivity measure
The C-GM Counter is a low cost (<50$) DIY Hardware & Firmware for building a Connected Geiger-Müller counter device to record beta-gamma radiation levels. The counter is the hardware part of the overall A-GM project aimed for providing a long-term continuous measurement of the radioactivity level. see also A-GM Manager at https://www.instructables.com/id/DIY-Radioactivity-Counter-IoT-and-Eco-system/ ** IMPORTANT ** : From v1.4, Arduino Nano require Optiboot bootloader to work, other boot crashes. -
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pyrpl
PyRPL turns your Red Pitaya into a powerful analog feedback device.
The Red Pitaya is a commercial, affordable FPGA board with fast analog inputs and outputs. This makes it useful for quantum optics experiments, in particular as a digital feedback controller for analog systems. Based on the open source software provided by the board manufacturer, PyRPL (Python RedPitaya Lockbox) implements many devices that are needed for optics experiments with the Red Pitaya. PyRPL implements various digital signal processing (DSP) modules (see features below). It allows to arbitrarily interconnect the available DSP modules and retrieve signal values on timescales below 1 ms. The graphical user interface (GUI) provides a realtime display of the various measurement instruments and allows the easy configuration of DSP signal chains and feedback controllers. At the highest abstraction level, arbitrary feedback sequences can be defined to fulfill tasks as complex as approaching and locking a resonance of a high-finesse Fabry-Perot cavity (tested up to finesse=100,000). -
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AWS IoT Device Defender Library
Client library for using AWS IoT Defender service on embedded devices
The Device Defender library enables you to send device metrics to the AWS IoT Device Defender Service. This library also supports custom metrics, a feature that helps you monitor operational health metrics that are unique to your fleet or use case. For example, you can define a new metric to monitor the memory usage or CPU usage on your devices. This library has no dependencies on any additional libraries other than the standard C library, and therefore, can be used with any MQTT client library. This library is distributed under the MIT Open Source License. This library has gone through code quality checks including verification that no function has a GNU Complexity score over 8, and checks against deviations from mandatory rules in the MISRA coding standard. Deviations from the MISRA C:2012 guidelines are documented under MISRA Deviations. This library has also undergone static code analysis using Coverity static analysis. -
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AWS IoT Device Shadow library
Client library for using AWS IoT Shadow service on embedded devices
The AWS IoT Device Shadow library enables you to store and retrieve the current state (the “shadow”) of every registered device. The device’s shadow is a persistent, virtual representation of your device that you can interact with from AWS IoT Core even if the device is offline. The device state is captured as its “shadow” within a JSON document. The device can send commands over MQTT to get, update and delete its latest state as well as receive notifications over MQTT about changes in its state. Each device’s shadow is uniquely identified by the name of the corresponding “thing”, a representation of a specific device or logical entity on the AWS Cloud. See Managing Devices with AWS IoT for more information on IoT "thing". More details about AWS IoT Device Shadow can be found in AWS IoT documentation. This library is distributed under the MIT Open Source License. -
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AWS IoT Fleet Provisioning Library
Client library for using AWS IoT Fleet Provisioning service
The Fleet Provisioning library enables you to provision IoT devices without device certificates using the Fleet Provisioning feature of AWS IoT Core. For an overview of provisioning options available, see Device provisioning. This library has no dependencies on any additional libraries other than the standard C library, and therefore, can be used with any MQTT library. This library is distributed under the MIT Open Source License. This library has gone through code quality checks including verification that no function has a GNU Complexity score over 8, and checks against deviations from mandatory rules in the MISRA coding standard. Deviations from the MISRA C:2012 guidelines are documented under MISRA Deviations. This library has also undergone static code analysis using Coverity static analysis, and validation of memory safety through the CBMC automated reasoning tool. -
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AWS IoT Jobs library
Client library for using AWS IoT Jobs service on embedded devices
The AWS IoT Jobs library helps you notify connected IoT devices of a pending Job. A Job can be used to manage your fleet of devices, update firmware and security certificates on your devices, or perform administrative tasks such as restarting devices and performing diagnostics. It interacts with the AWS IoT Jobs service using MQTT, a lightweight publish-subscribe protocol. This library provides a convenience API to compose and recognize the MQTT topic strings used by the Jobs service. The library is written in C compliant with ISO C90 and MISRA C:2012, and is distributed under the MIT Open Source License. This library has gone through code quality checks including verification that no function has a GNU Complexity score over 8, and checks against deviations from mandatory rules in the MISRA coding standard. Deviations from the MISRA C:2012 guidelines are documented under MISRA Deviations. This library has also undergone both static code analysis from Coverity. -
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Brick Firmware
Brick Firmware
Firmware for hardware which may communicate with the "Brick Daemon" ( http://github.com/Tinkerforge/brickd ) -
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ESP8266_Flespi_yum
ESP8266 (ESP-01) + Serial Commands + Flespi Broker
ESP-01, the simplest USD 1.50.- ESP8266 gets a firmware that allows the user to control it by serial port. Therefore it can be used along with any terminal, computer or microcontroller, which is equipped with a serial port (or USB port) -) Connect / disconnect to WiFi and Flespi MQTT broker -) Publish messages -) Subscribe to topics / Unsubscribe from topics -) Read the messages received Furthermore a GUI is on developing process to demonstrate the use. Paypal donations are welcome! reinharddaemon@gmail.com -
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FreeRTOS AWS Reference Integrations
IoT operating system for microcontrollers.
FreeRTOS is an open source, real-time operating system for microcontrollers that makes small, low power edge devices easy to program, deploy, secure, connect, and manage. Distributed freely under the MIT open source license, FreeRTOS includes a kernel and a growing set of software libraries suitable for use across industry sectors and applications. This includes securely connecting your small, low power devices to AWS Cloud services like AWS IoT Core or to more powerful edge devices running AWS IoT Greengrass. FreeRTOS is built with an emphasis on reliability and ease of use, and offers the predictability of long-term support releases. A microcontroller contains a simple, resource-constrained processor that can be found in many devices, including appliances, sensors, fitness trackers, industrial automation, and automobiles. Many of these small devices can benefit from connecting to the cloud or locally to other devices, but have limited compute power and memory capacity. -
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GreenHop
Energy and environmental monitoring of the server room
The solution GreenHop aims to perform energy and environmental (temperature, humidity, dew point and atmospheric pressure) monitoring of the Data Center server room, providing energy efficiency indicators through green metrics for Data Centers. The GreenHop solution is based on open source software and hardware. The approach of using open source solutions enables its deployment easier and independently of suppliers at the same time makes the solution scalable to the needs of each organization. Thus, we aim to provide ambiental monitoring of the Data Center server room while we keep the system to be customizable to implement and replicate. -
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IoT Leaf
Software resources for the ESP32 based IoT Leaf microcontroller board
The IoT Leaf is a small ESP32-based device which can be used as highly flexible power supply, as embedded controller or as a combination of both: it consists of a board which can be cut into two pieces resulting in two different devices or which can be used as one. The board can be powered via solar cell or USB and provides a battery charging function and deep-discharge protection for LiPo batteries. Beside the ESP32 the microcontroller part is prepared for a LoRaWAN and a GPS module. Both together provide a powerful hardware which can be used in many different scenarios. Details and the full specification are available at https://iot.halaser.de This repository contains different firmware-examples and applications which can be used together with this board as well as hardware designs which are free to be used. -
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MQTT Hyperdash
A universal MQTT Dashboard for linux/Raspberry Pi.
MQTT-Hyperdash is a fast and efficient dashboard (GUI) for the MQTT framework. It uses the SDL library for graphics rendering, the paho library for communication and the gtk2 framework for user input. The dashboard runs on Linux, but a port to other operating systems is possible. Special features: * Very simple and basic set of base elements. * animated analog input elements, potentiometers. * Fast update rates of 20 Hz are possible. * Easy to use: Each panel/dashboard is configured in a single .dash file. Included are commandline tools to list all topics on a mqtt broker (mqtt-list-topics) and to generate generic dashboard files from the topic lists (hddashgen). Also a highly useful framweork for fast rule engines is included. -
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MeshCore_Info_Display
MeshCore path info display
This device shows MeshCore path information on its display. A map with known repeaters of the region are displayed and a table of the connection path the observer reporting to the MQTT server is shown. The MQTT server is not part of this repository. -
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MultiCAN
EPICS device support for CAN Bus
MultiCAN implements a CAN Bus device support for EPICS. EPICS is a framework for control systems, the CAN Bus is a reliable real-time field bus. The ‘Multi’ und MultiCAN stands for ‘Multi Protocol support’, so it supports more than one protocol for CAN Bus communication. MultiCAN has support for the CANOpen protocol and the older CAN Application Layer (CAL). -
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OWLOS
Open source network operating system for managing IoT devices.
OWLOS Open source network operating system for managing IoT devices: - does't require internet access or additional servers - ready to connect sensors, actuators, LCD, DHT, Stepper and other devices - does't require programming skills - built-in user interface - use web browser to access and manage your OWLOS nodes - built-in RESTful server - built-in MQTT client - at the same time WiFi access point and station, in any combination: - can be used autonomously - can work on a local network can work via the Internet can integrate with other nodes running under OWLOS - organizing an internal network. without using a servers available in source code -
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TOISWITCH
TOISWITCH is a general-Purpose smart-home server for ESP8266
TOISWITCH is a general-Purpose multi I/O-Server for ESP8266. Its build as an easy-to-use Web-GUI-based server for a range of smart home devices. Currently it supports the following types of devices -Power plugs and Power strips incl power measurement -Multicolor (RGB/RGBW/RGBWW) LED lamps incl gamma correction -Switches -Dimmers -Motion detectors -Motor controls -Sensors It has an easy-to-use web-interface to control the devices and configure them. It supports powerful profiles. to combine inputs and outputs. It also supports MQTT including MQTTs as publisher and subscriber to make it possible to combine multiple devices and to create complete scenes with just one click (i.e. to switch on lights within the whole flat). Via MQTT its also possible to integrate the devices within a existiong smart home environment or control them via internet. Its also possible to create timeplans and set short-time-timers. Updates can be easily done within the web interface
