It’s really just an ATTiny85 – a favorite of the crowd that’s just slightly above Arduino level – and an HM-10 Bluetooth 4. ... if you want a wireless sensor board. All the files can ...

is the most affordable Arduino board at only $13.70. If you need Wi-Fi and Bluetooth connectivity, the Nano ESP32 and Nano 33 IoT are also cheaper by at least $2 than the Wi-Fi and Bluetooth ...

especially the more advanced applications like multi-sensor weather monitors or home automation systems. That said, the ...

Using the SS49E linear Hall effect sensor in pairs ... [John] utilises the Arduino pro micro for its copious analog inputs and USB functionality. A nice feature of this board is that it’s ...

On the other hand, the Raspberry Pi can do much more than the Arduino, as it is a full-blown computer. Its features include Bluetooth support ... want to do with the boards.