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October 3, 2010
This electronic game pits a human player against the ‘machine’. The opponents use a common ‘game token’ and take turns moving along a path by one, two or three steps, and the winner is the... [more]
circuit from:http://www.extremecircuits.net/2010/05/123-game-all-mcu-free.html
October 3, 2010
This circuit generates an astonishingly real imitation of the chirping of the cricket. A suitable audio wave form is generated by IC2 and related components, driving the loudspeaker through Q1. To allow a more real-life... [more]
circuit from:http://www.extremecircuits.net/2010/01/cricket-chirping-generator-circuit.html
October 3, 2010
This circuit measures the distance covered during a walk. Hardware is located in a small box slipped in pants' pocket and the display is conceived in the following manner: the leftmost display D2 (the most... [more]
circuit from:http://www.extremecircuits.net/2009/12/digital-step-km-counter-circuit.html
October 3, 2010
This circuit is intended to control a heating system or central heating plan, keeping constant indoor temperature in spite of wide range changes in the outdoor one. Two sensors are needed: one placed outdoors, in... [more]
circuit from:http://www.extremecircuits.net/2009/08/heating-system-thermostat-circuit.html
October 3, 2010
Most homes today have at least a few infrared remote controls, whether they be for the television, the video recorder, the stereo, etc. Despite that fact, who among us has not cursed the light that... [more]
circuit from:http://www.extremecircuits.net/2010/05/on-off-infrared-remote-control.html
October 3, 2010
Here is a white-LED-based emergency light that offers the following advantages. 1-It is highly bright due to the use of white LEDs. 2-The light turns on automatically when mains supply fails, and turns off when... [more]
circuit from:http://www.extremecircuits.net/2010/01/automatic-low-power-emergancy-light.html
October 3, 2010
This design was developed by request of a correspondent having made a sort of LED candle and needing to switch off the LED with a puff. This simple, easy to build gadget can be useful... [more]
circuit from:http://www.extremecircuits.net/2010/01/electronic-candle-blow-out-schematic.html
October 3, 2010
This circuit operates two LED strips in pulsing mode, i.e. one LED strip goes from off state, lights up gradually, then dims gradually, etc. while the other LED strip does the contrary. Each strip can... [more]
circuit from:http://www.extremecircuits.net/2010/01/fading-leds-circuit-diagram.html
October 3, 2010
This circuit was purposely designed as a funny Halloween gadget. It should be placed to the rear of a badge or pin bearing a typical Halloween character image, e.g. a pumpkin, skull, black cat, witch,... [more]
October 3, 2010
The circuit can be divided into inverter and charger sections. The inverter section is built around timer NE555, while the charger section is built around 3-terminal adjustable regulator LM317. In the inverter section, NE555 is... [more]
circuit from:http://www.extremecircuits.net/2010/05/fully-automatic-emergency-light.html
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