Free Electronic Circuits & 8085 projects

Electronic projects with circuit diagram and 8085 microprocessor projects.

Light controlled fan circuit with music using CD4022

Published on Apr 26 2011 // Fan control circuits

Light controlled fan circuit with music using CD4022.

Circuit as shown. It consists of relaxation oscillator, light control pulse count / Ze code circuit, SCR motor speed control circuit, the songs sound buck rectifier circuit and communication circuit. In the strong beam irradiation, the control circuit starts fan to run, and bursts of natural wind blowing, it is also accompanied by 16 songs in the broadcast world.