Portable barcode scanners can be big and bulky, or connected with a wire that can make moving them around a hassle. This little fella is wireless and has the familiar look and feel of a chunky ...

In this Arduino Project, you will also learn how to build an Arduino smoke alarm that sends SMS Alerts without needing to rely on the GSM module. The Arduino UNO ... Here, to send SMS alerts, I am ...

The circuit diagram is simple ... data pin of the transmitter module. You can refer to the image below for a clearer view of the circuit connections and placement in the helmet. All the modules are ...