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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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3 Axis Accelerometer Using PIC16F887
my friend reported that his 3 axis accelerometer project is working on. He is using Microcontroller PIC16F887 for this circuit. The direction-sensing is accomplished by Freescale’s ...
- Posted 25 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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Simple Remote Control Using ATTINY213
This circuit was working well, all that was left was to add an ATTINY2313, a battery, and some buttons. The Princeton Technology decoders, such as the PT2272, have an amazing tolerance for data ...
- Posted 5 March
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30 DDm to +30 DDm Audio Level Meter
30 DDm to +30 DDm Audio Level Meter...[more] : circuit with balanced input and adjustable gain to drive needle type VU meter, uses special amplifier module from Op-Amp Labs ...
- Posted 22 August
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Fast Voltage Comparators with Low Input Current
Fast Voltage Comparators with Low Input Current...[more] : National Semiconductor Application Notes, 28-Jun-1996 ...
- Posted 22 August
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Audio Video Switch
Audio Video Switch...[more] : This is an 8-input x-output audio/video switch module to be controlled from a computer, for example from the parallel port. Each audio/video output can be ...
- Posted 22 August
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Standard Microphone Preamplifier Input Circuitry
Standard Microphone Preamplifier Input Circuitry...[more] : PDF file ...
- Posted 21 August
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Balanced Audio Input Circuit
Balanced Audio Input Circuit...[more] : 109KB PDF file ...
- Posted 21 August
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30 DDm to +30 DDm Audio Level Meter
30 DDm to +30 DDm Audio Level Meter...[more] : circuit with balanced input and adjustable gain to drive needle type VU meter, uses special amplifier module from Op-Amp Labs ...
- Posted 21 August
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FET INPUT HIGH SPEED LIGHT DETECTOR
FET INPUT HIGH SPEED LIGHT DETECTOR...[more] (69) (fetamp0) This circuit is yet another design that converts current from a PIN photo diode to a voltage. It has a bandwidth that extends beyond 50MHz. ...
- Posted 21 August
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