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DIY/Homemade Geiger Muller Clicker V1 – Circuit Schematic
DIY/Homemade Geiger Muller Clicker V1
Because the recent events in Fukushima, Japan, brought a lot of concern on radiation levels, by popular demand, here is a simple Geiger Muller counter using the...
ATmega8 and Hall Sensor A1302 – Circuit Schematic
ATmega8 and Hall Sensor A1302
The A1301 and A1302 are continuous-time, ratiometric, linear Hall-effect sensor ICs. They are optimized to accurately provide a voltage output that is proportio...
CCD Array Reader – Circuit Schematic
CCD Array Reader
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Opto switches consist of a transmitter and receiver – Circuit Schematic
Opto switches consist of a transmitter and receiver
The game as originally envisaged placed the three balls as they were locked in holes on a slowly rotating ring around the Deadworld. When the third ball was loc...
Circuit explanation for the ultrasonic detection unit – Circuit Schematic
Circuit explanation for the ultrasonic detection unit
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Circuit drawing for the ultrasonic detection unit – Circuit Schematic
Circuit drawing for the ultrasonic detection unit
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Inductive Proximity Sensors – Circuit Schematic
Inductive Proximity Sensors
The inductive sensor is a simple enough device at the fundamental level. It is simply a coil of wire with a current passing through it. It completely ignores mo...
Lego Rotation Sensor Internals – Circuit Schematic
Lego Rotation Sensor Internals
Lego rotation sensor is a nice little device that enables RCX to measure rotation of an axle with good resolution: 16 steps per turn. Unfortunately it is plague...
GP2D12 distance sensor – Circuit Schematic
GP2D12 distance sensor
A distance sensor would be a nice addition to Mindstorms robots, but ultrasonic ones were bulky and power hungry, and simple infrared method like the one I used...
3D Laser Scanner – Circuit Schematic
3D Laser Scanner
The red laser line slowly sweeps the object (here a Fabuland lamb head). Behind the scanned object, two planes with a 90 ° angle provide reference to the scann...
IR Short Distance Beam Cut Detector – Circuit Schematic
IR Short Distance Beam Cut Detector
A circuit that can detect a light beam cut. The first circuit i made was a light/dark detector with photoresistor. Although it could sense the light cut, it had...
More on the plant sensor – Circuit Schematic
More on the plant sensor
The plan is to have some plant sensing working for a groworld installation we are doing at Camp Pixelache so I`ve made the circuitry a little more durable with ...
sensor interfacing with lpc2148 arm7 tyro – Circuit Schematic
sensor interfacing with lpc2148 arm7 tyro
The LM35 series are precision integrated-circuit temperature sensors, whose output voltage is linearly proportional to the Celsius (Centigrade) temperature. The...
ds1820 interfacing with avr slicker – Circuit Schematic
ds1820 interfacing with avr slicker
Interface the ds1820 to microcontroller. As you can see the first pin is connected to GND, the third pin is connected to VCC & the second pin is connected to th...
ultrasonic transmitter – Circuit Schematic
ultrasonic transmitter
This section gives step-by-step instructions along with photos to the construction of Ultrasonic Proximity Transmitter. Because this is a very simple circuit, o...
ultrasonic receiver – Circuit Schematic
ultrasonic receiver
This section gives step-by-step instructions along with photos to the construction of Ultrasonic Proximity Receiver. Because this is a very simple circuit, only...
ir sensor – Circuit Schematic
ir sensor
This section gives step-by-step instructions along with photos to the construction of IR Proximity Switch. Because this is a very simple circuit, only a schemat...
Using LEDs as colour sensors – Circuit Schematic
Using LEDs as colour sensors
Part of this circuit is turning the analog signal coming from the reversed LED (sensing mode) and amplified by the op amp into a digital (on/off) signal. I got ...
The Follow-Me Rover robot circuit – Circuit Schematic
The Follow-Me Rover robot circuit
It uses body heat to locate and track its human master. At heart of this heat seeking capability is the Devantech TPA81 Thermal Sensor Array. The TPA81 consists...
Light Detector – Circuit Schematic
Light Detector
With the comparator output driving an LED, the next step will be to sense the intensity of the LED. This lab will build a light detector circuit using an op amp...