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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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Monitor Pin Detector
To monitor the pins of the chip without any load I put on two 74HC245 integrated that drive the LEDs. In this way I view the states of the inputs and outputs with no load or resistance with LED, ...
- Posted 30 June
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Plants Watering Watcher
Plants Watering Watcher...[more] : Varying brightness LED signals the necessity to water a plant. Very Low consumption,3V powered Circuit ...
- Posted 22 August
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LED Audio UV Monitor
LED Audio UV Monitor...[more] : logarithmic scale with3 dB steps, based in LM3915 IC ...
- Posted 22 August
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3 Level Audio Power Indicator
3 Level Audio Power Indicator...[more] : Battery-operated 3 LED display that connect it to loudspeaker output ...
- Posted 22 August
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Flashing High Intensity LED 3rd Brake Light
Flashing High Intensity LED 3rd Brake Light...[more] : This circuit to make a flashing3rd brake light assembly was designed to be easy to locate all the needed components and reasonably in ...
- Posted 21 August
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TIME TO DUST INDICATOR
TIME TO DUST INDICATOR...[more] I thought about this circuit when I heard that a lot cleaning personal in hotels were either dusting rooms more often than necessary or not enough. ...
- Posted 21 August
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Huge LED Antenna Direction Display (part 2)
Huge LED Antenna Direction Display (part 2) ...
- Posted 19 August
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Huge LED Antenna Direction Display (part 1)
Huge LED Antenna Direction Display (part 1) ...
- Posted 19 August
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