PANIC ALARM - ARDUINO // // by T.K.Hareendran // int rlyPin = 12; // Relay Output Pin int sensPin = 2; // Switch Input Pin int ledPin = 13; // LED output Pin int pzSpeaker = 10; //Piezo-speaker Output ...

BHPian Skyline_Vista recently shared this with other enthusiasts:This truly reflects my passion for car electrics and DIY ...

An indicator LED lights up and a piezo speaker beeps ... Whenever a valid key is swiped, the Arduino triggers a relay which can then be used to control just about anything.

I checked several Arduino projects and related libraries available online ... After finishing the command you’ll get the corresponding relay click and LED feedback. There are several other notations ...

which usually would be connected to a relay to fire off whatever device you want. The Arduino sketch is also setup to give “hints” to the player by way of a status LED: fast blinking let’s ...

Toshiba has a voltage driven photo relay with a tiny S-VSON4T package and reduced input power dissipation. The TLP3407SR, features a maximum LED current of just 1 mA at the input, which represents a ...