An ordinary automatic room power control circuit has only one light sensor.
The circuit uses two LDRs which are placed one after another (separated by a distance of say half a metre) so that they may separately sense a person going into the room or coming out of the room. Outputs of [...]
Archives for Switches Diagram
Lights & LED Circuits & Schematics LDR
Schematic Diagram Sensors and LDR
Colour sensor is an interesting project for hobbyists. The cir- cuit can sense eight colours, i.e. blue, green and red (primary colours); magenta, yellow and cyan (secondary colours); and black and white. The circuit is based on the fundamentals of optics and digital electronics. The object whose colour is required to be detected should be [...]
Satellite Camera Controller with a PC and Motorcycles, this is the circuit diagram schema
Satellite Camera Controller with a PC and Motorcycles, this is the circuit diagram schema
The back EMF voltage spikes produced by stepper motors (particularly higher voltage motors) can damage your PC’s printer port if connections are made incorrectly, fly back diodes are absent or connected in reverse, etc. The safest options are opto – isolated or [...]
A simple Switch – flip flop
Given that the diode can be made to conduct, or not to conduct, simply by the choice of applied voltage polarity, then it must be possible to use any diode as a switch. So if you want to follow me, then just wire together the following circuit on a bit of breadboard, or something.
Set the [...]
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