Plug the RFID module into the breadboard with enough space around it. Connect the VCC pin to the Arduino's 3.3V (not 5V), and ...

If those seem familiar, it’s because the seven modules were sold as part of the Arduino Plug and Make Kit with an Arduino Uno R4 WiFi. So they are not exactly new, and the main change is that they can ...

can all cause a sensor node to fail. In this case, a trustworthy sensor node that can distribute the load among itself is necessary. Saving energy often wasted on crashes, resending information, and ...