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simple car parking sensors circuit – Circuit Schematic
simple car parking sensors circuit
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simple automatic air flow detector circuit and circuit board – Circuit Schematic
simple automatic air flow detector circuit and circuit board
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tilt sensor – Circuit Schematic
tilt sensor
Tons of LED Projects to spark your creativity. Light Emitting Diodes are simple to use and make your DIY electronic projects look great.....
diy geiger counter – Circuit Schematic
diy geiger counter
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automatic laser poweroff circuit – Circuit Schematic
automatic laser poweroff circuit
Here`s the Automatic Laser poweroff circuit schematic. This circuit provides a visible power indication. In this case, Ground is waiting on one side.....
infrared proximity sensor – Circuit Schematic
infrared proximity sensor
For one of my classes each student had to pick one of three technology platforms to design, simulate, prototype and then build (PCB layout, ordering, etc) all w...
wireless picaxe based water tank level sensor – Circuit Schematic
wireless picaxe based water tank level sensor
The design is based entirely on Silicon Chip`s PIC-Based Water-Tank Level Meter, but instead of programming PICs, I prototyped using an arduino, and built the f...
detecting biodynamic signals – Circuit Schematic
detecting biodynamic signals
Much evidence indicates that specific communications and energies DO exist outside the conventional electromagnetic spectrum of which our finest examples may be...
lie detector circuit diagram – Circuit Schematic
lie detector circuit diagram
This lie detector circuit diagram will accord two readings: one for difficult questions for the accountable and addition to appearance its affecting accompanime...
task 32 triple axis accelerometer – Circuit Schematic
task 32 triple axis accelerometer
a circuit diagram showing how the accelerometer is connected to an Arduino board & external power source (not complicated at all, is it)...
synced using infrared phototransistors – Circuit Schematic
synced using infrared phototransistors
Below is the circuit I`m working with; I plan on having the infrared phototransistor pairs inserted in 3 locations in the middle of the maze, including the end ...
Zipper Sensor – Circuit Schematic
Zipper Sensor
I used 45 peices of 220 ohm resisters to make 10k ohm variable resister. By banding the wire of the resister I made hook to sew it through. If you want even les...
Three Axis Mag – Circuit Schematic
Three Axis Mag
The Micromag3 is a 3-axis magnetometer that measures the strength of magnetic fields in 3 directions. It can measure magnetic fields that are approximately the ...
Flame Sensor – Circuit Schematic
Flame Sensor
A flame sensor (UV TRON) made by HAMAMATSU PHOTONICS, Japan, is an ultraviolet light detector. It has a narrow spectral sensitivity of 185 nm to 260 nm, being c...
QRD1114IR Sensor – Circuit Schematic
QRD1114IR Sensor
Initially I chose another infrared sensor for test, PIR Motion Sensor, which was to detect any motion in front of the sensor but it turened out not so sensitive...
Thermostat circuits – Circuit Schematic
Thermostat circuits
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magnetic switch circuit – Circuit Schematic
magnetic switch circuit
Magnetic switch is a circuit which can respond to magnetic fields that were around the sensor. The series of magnetic switches uses sensors in the form of limit...
reflected infrared light switch – Circuit Schematic
reflected infrared light switch
Infrared light reflected off a finger is used to activate this switch circuit. Drawing only 30uA from a 3v supply, this circuit will detect a human finger with ...
how to build water level indicator – Circuit Schematic
how to build water level indicator
The whole project was developed on a friend`s request. Its purpose was to remotely monitor the water-level in a metal tank located in the attic by means of a ve...
Differential Light – Circuit Schematic
Differential Light
Build circuit on a 1" square circuit board. Position the variable resister so that it can be adjusted from one of the edges. Attach the CdS cells at the other e...