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Digital AVR frequency meter
Posted 15 April -
Automatically switches off DMM
Posted 12 October -
Create multicolored LEDs
Posted 12 October -
Voltage curves on PC
Posted 12 October -
Ultrasonic Parking Sonar Schematic
Posted 28 July -
Battery Solutions for Energy Harvesting
Posted 28 July -
Simple Gas Leak Detector Circuit
Posted 30 April -
FTDI Infrared
Posted 28 April -
3 Axis Accelerometer Using PIC16F887
Posted 25 April -
Simple 3V adjustable Car adapter
Posted 14 April
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Serial RS232 Booster Up to 100m
This circuit can run over relatively long distances (up to 100 metres), inexpensively, reliably, and suitable for speeds up to 2400 bauds. At the distances considered, the main expense is ...
- Posted 9 February
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Basic Radio Control Decoder
OP-Amp "a" amplifies the incoming pulses from the receiver. This stage is self biassed and may be connected directly to the output of a ZN414Z, ZN416E or any other output with between 0 to +6vDC ...
- Posted 9 January
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CASCODE LIGHT RECEIVER CIRCUIT
CASCODE LIGHT RECEIVER CIRCUIT...[more] (103) (40krvr3a) This page provides a detailed explanation of how the modified operates. The cascode technique in conjunction with an inductive load ...
- Posted 21 August
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AIR TRANSPARENCY MONITOR, XENON FLASH RECEIVER
AIR TRANSPARENCY MONITOR, XENON FLASH RECEIVER...[more] (70) (airmon0) I designed this circuit many years ago to monitor the quality of a mile long column of air for future optical communications ...
- Posted 21 August
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LIGHT RECEIVER WORKS FROM 1KHz TO OVER 70MHz
LIGHT RECEIVER WORKS FROM 1KHz TO OVER 70MHz...[more] (48) (75mfbvr) This circuit uses one tiny C-MOS inverter IC to form a modulated light receiver with a very fast response. It is designed ...
- Posted 21 August
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BROAD BAND 2MHz OPTICAL FIBER RECEIVER
BROAD BAND 2MHz OPTICAL FIBER RECEIVER...[more] (31) (2mhzrvr1) If you need more sensitivity than the above circuit this circuit provides about ten times more gain. It too is designed ...
- Posted 21 August
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1uS LIGHT PULSE RECEIVER PLUS POST AMP
1uS LIGHT PULSE RECEIVER PLUS POST AMP...[more] (27) (500krvr3) This circuit is designed to detect very weak light pulses lasting 1uS. It uses a tuned LC feedback netw1ork to provide high ...
- Posted 21 August
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40KHz LIGHT RECEIVER IS IMMUNE TO AMBIENT LIGHT
40KHz LIGHT RECEIVER IS IMMUNE TO AMBIENT LIGHT...[more] (16) (40krvr1) If you want even more sensitivity than the above circuit, try this design. When used with a one-centimeter square ...
- Posted 21 August
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SINGLE IC FORMS SENSITIVE MODULATED LIGHT RECEIVER
SINGLE IC FORMS SENSITIVE MODULATED LIGHT RECEIVER...[more] (15) (4069rvr1) The circuit uses a very inexpensive C-MOS ...
- Posted 21 August
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