The Arduino MySensors library makes it possible to create connected objects (IoT) and to make them communicate by radio waves. The library is responsible for creating a network of sensors and actuators that communicate with each other. MySensors supports 2.4GHz (nRF24L01) and 915mHz (RFM69) radio frequencies. The main home automation servers natively support the protocol. It is very easy to manufacture your own probes (temperature, humidity, air pollution, water leak detection, barometer …) and integrate them into Domoticz, Jeedom, OpenHAB, Home Assistant, just to name a few. the main ones. It is also very easy to use sensors and actuators from Node-RED. To operate and communicate with another software, gateway or gateway (network or serial) and necessary. Since version 2, it is possible to build a WiFi Gateway using an ESP8266 module.

Get started with the MySensors v2 library

Get started with the library MySensors v2
The library makes it possible to develop connected objects that communicate by radio waves. Ideal in the absence of WiFi coverage to create a network of connected objects
Get started with the library MySensors v2
How to increase the range of radio modules nRF24L01
Read this guide to increase the radio reach of your projects. Circuit, antenna type
How to increase the range of radio modules nRF24L01
Making a WiFi Gateway with an ESP8266 Module
It is very easy to communicate with a network of MySensors connected objects from a home automation server by manufacturing a WiFi Gateway using an ESP8266 module
Making a WiFi Gateway with an ESP8266 Module

All MySensors tutorials

Use Node-RED to create a gateway between MySensors and Blynk (local server)

Blynk is great for using and control connected objects from your iOS or Android smartphone. If you have developed objects connected using the MySensors library to communicate over long distances using radio waves, it is very easy to ...

Node-RED (Tutorial): saving MySensors measurements on InfluxDB

In this tutorial we will see how to record measurements from a DHT22 probe sent via radio waves using the MySensors library using Node-RED in an InfluxDB database. If you discover the InfluxDB database, see the previous article, which explains how ...

ser2net: Serial USB Gateway to Ethernet. Test on RFLink with Domoticz

It is possible to move the bridge RFLink (read this previous article about how to make a Gateway) on another computer or Raspberry Pi by improve the reception of your devices for example. For this we will use ser2net, an Open Source project ...

MySensors v2: measurement of temperature and humidity (DHT11/DHT22)

Arduino MySensors library allows you to very easily perform a probe temperature and humidity at base DHT11 or DHT22, which we can easily retrieve the values on a home automation software or program any. This is a good exercise to discover the ...

#Guide, how to increase the range of nRF24L01 radio modules of MySensors v2 projects (hardware, configuration)

Simple appearance on paper (the screen!), the realization of an object connected with nRF24L01 radio module can quickly be complicated to the point if we want to pass data long distance (several tens of meter, see hundreds). After spending many ...

MySensors v2: decode/send messages with Node-RED

MySensors objects communicate with each other in the form of small text messages sent by radio waves. It is very easy to decode messages in following the technical specifications of the API available on the series official website of the project. ...

Node-RED: How to integrate a connected object developed with MySensors v2 library

It is very easy to create its own connected Arduino-based objects that communicate by radio waves using the library MySensors v2 and to use them in a project Node-RED. For this tutorial, we will use a simple probe temperature and humidity (DHT22). ...

Homebridge – Domoticz: control MySensors objects with Siri on iOS10

You have developed your own objects connected based Arduino (or ESP8266) and MySensors library, here’s how to drive through voice Siri or from the new application House (HomeKit) of iOS10 . In this first tutorial, we’ll install and configure ...

How to make a MySensors v2.0 WiFi Gateway with an ESP8266. Test with Domoticz

We continue the series of articles on the library MySensors 2.0.In this article we will learn how to make a WiFi Gateway based on a ESP8266 module and connect it to Domoticz. The ESP8266 modules are supported since version 1.5 through the work of ...

MySensors v2 – Discover, news, migrate old sketchs (1.4 or 1.5)

The MySensors library has just received an important update and at the same time goes to version 2. This is an opportunity to discover (or rediscover) this library to create DIY connected objects developed by the Swedish Sensnology AB team. . This ...

nRF24L01 module with antenna engraved on the PCB

Project in interior or short distance (100m in free field).

nRF24L01+PA+LNA module with 2dBi external antenna

This module has an SMA connector for using an external antenna. In general, the modules are delivered with a 2dBi antenna to reach 1000m in free field (really free!). The slightest vegetable greatly diminishes the signal. If the environment is very difficult, consider buying a 6dBi antenna or 15 dBi.

Adapter with regulated power supply

Facilitates assembly, avoids connection losses (error! TSM: FAILURE). Compatible with all models of nRF24L01.

6dBi Replacement Antenna

15dBi Replacement Antenna

DIY Projects