Node-RED library for Grove base HAT
As teacher I use Node-RED on a Raspberry Pi for learning students about IoT. Node-RED is a no-code/low-code platform where people can make their own automated system and/or information dashboard. …
Raspberry Pi prototype board
WiringPi and BCM GPIO In the past years, I used a WiringPi prototype board for lessons in IoT. Using Java and Pi4J library this was an obvious choice to use …
The Things Stack V3 Gateway
To be prepared for the upgrade of the Things Stack to version 3, I build another Semtech Packet Forwarder Gateway for testing and migrating my LoRa nodes. Sadly the version …
Soladin600 PV monitor
In April this year (2020) a friend of mine asked if I could make a device that monitors his more than 10 years old Solar System (Photo Voltaic). The power …
Interfacing Dutch Smart Meter
Due to the small form factor, low power consumption I’ve used the Orange Pi Zero LTS to make an interface to the Dutch Smart Meter (DSMR). In earlier post I …
Raspberry Pi – Smart Powermeter P1 Interface
In the netherlands we use smart power meters in our homes. Every smart powermeter has a standardized interface. You can see the electrical interface here: When the Data_Request line is …