.

Subscribe by email

Sensors electronic circuits design projects

Sensor based electronic circuits design projects and schematics

Touch sensor switch using inverters

This touch sensor switch can is designed using inverters (N1, N2)and some common electronic components. In standby state at the entrances of N1 there is a signal produced by oscillator N3/N4. At the touch sensor hand capacity forms a bridge to the ground for the 1MHz signal so that the voltage signal at the entrance of N1 decreases more (at the exit of N2 is logical 1). After the release of contact, a signal charge C4 through D1 Mhz, so the output of N2 is 0 logic after short time.

Circuit Diagram: 
Touch sensor switch circuit project using inverters
Electronic Circuits: 
Sensors

Light alarm schematic circuit diagram

This light alarm schematic circuit is designed using some common electronic parts, as you can see in the circuit diagram bellow . This light alarm schematic circuit project will sound as soon as the drawer is opened and light falls on the Darlington phototransistor. The output alarm may be redesigned to activate a relay or triac.

Circuit Diagram: 
Light alarm schematic circuit diagram project using mal12
Electronic Circuits: 
Sensors

Light Dark switch activated relay circuits

This Light Dark switch activated relay circuits schematics are the simplest electronic circuits that can help you to activate other electronic device at the light or dark . This Light Dark switch activated relay circuits are very simple and require one electronic relay and other few common components that are not critical . For electronic project you need to use a 5-6 volts electronic relay .
Circuit Diagram: 
Light switch activated relay circuits diagrams
Dark switch activated relay circuits diagrams
Electronic Circuits: 
Sensors

Pages

Subscribe to RSS - Sensors