Can I use MySensors library to have one Sensor Transmitter and one Receiver without any Gateway

  • I am 74 years old retired Telecom Engineer and new to MySensors forum. I like the MySensors Battery node for Soil Monitoring and using it with ESP8266 WiFi gateway. I also want to have a Simple setup just One Transmitter and One Receiver without any Gateway to monitor Soil Moisture (and Node's Battery) of my Green House. Any pointer will be greatly appreciated.

  • Mod

    Welcome to the forum @RagoTube

    Yes, it can be done by using node to node communication and setting MY_PARENT_NODE_IS_STATIC and MY_PARENT_NODE_ID.

    But it might be easier to use the plain radiohead library, since you would not need most features in MySensors.

  • @mfalkvidd Thank you for your immediate solution. I will try it now.

  • One little project and you're hooked! You know you're going to want another sensor in the yard, so consider a gateway running MQTT (called a broker). Once you have that, it's really easy to add more sensors.

    But if you're really strong willed an will only be using two devices ever, you might look at You can get an Arduino Nano and an nRF24 radio for about $3.50 from Aliexpress (downside: delivery takes ~2 months, so get 10 each.)

    MySensors Library can do this, too, but I find it a little bloated.

    Personal note: I'm 70, retired engineer, and have only four projects going right now.

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