The ESP32 WiFi/Bluetooth microcontroller can be programmed using the Arduino IDE. Installing support for the chip into the IDE used to be a bit complicated and time consuming. As
Programming the very affordable Baofeng UV-5R (also available as Pofung UV-5R) dual band mobile radio can be quite complicated. Luckily, there is a program called CHIRP. This free
In the previous blog post “IoT server: Mosquitto and Node Red on Raspberry Pi” we installed the Mosquitto MQTT broker and restricted access by requiring passwords for the
Setting up your own local, private and secure ‘Internet of Things’ (IoT) server is easy with Mosquitto, Node Red and a Raspberry Pi. Sometimes this route is preferable
Maybe you are already familiar with the WS2812B RGB LEDs, also known as ‘NeoPixels’. There are shields available for Arduino which have 40 of those individually addressable LEDs in a
