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Bedwetting/Wet Diaper Alert System 25 Aug 2013 | 12:07 am
Bedwetting is one of the most common childhood problems that can have a significant impact on a child’s health if left unattended. During the night, the parents would not know if the child has urinate...
12V DC to 220V AC Inverter 19 Aug 2013 | 08:01 pm
by Georg Böhmeke The internet is full of such schematics, so this project is nothing special. I try to make it special by providing more explanations and oscilloscope pictures than usually given. The ...
Portable LED Lantern 19 Aug 2013 | 02:08 pm
This circuit is a simple emergency light with 20 “white straw hat” LEDs. One advantage of this little circuit is that we can use any ordinary 5VDC mobile phone charger ( or a 5V solar panel) to rechar...
Transcranial Direct Current Stimulation 16 Aug 2013 | 03:21 pm
There is a lot of buzz around the Transcranial Direct Current Stimulation (tDCS), which is basically a way of stimulating the brain with low current using electrodes attached to specific areas of the ...
ULN2004 Datasheet 14 Aug 2013 | 12:50 pm
The UTC ULN2004 are high-voltage, high-current darlington drivers comprised of seven NPN darlington pairs. All units feature integral clamp diodes for switching inductive loads. Applications include r...
12V DC to 220V AC Inverter Circuit 13 Aug 2013 | 06:59 pm
This is a quite simple DC to AC inverter that provides 220VAC when a 12VDC power source is provided. It can be used to power very light loads like night lamps and cordless telephones,but can be modifi...
IRFZ44 Datasheet 13 Aug 2013 | 06:57 pm
According to the IRFZ44 datasheet this is a third generation Power MOSFET that provide the best combination of fast switching, ruggedized device design, low on-resistance and cost-effectiveness. The T...
Test these electronic schematics! 9 Aug 2013 | 04:35 pm
Hi guys, I have this idea of testing schematics based on your suggestions. I have already started testing some: dc to ac converter ultrasonic dog repeller Go on and look at the tested circuits we’ve t...
4538 Datasheet 6 Aug 2013 | 12:31 pm
The 4538 datasheet specifies that this IC is a dual, precision monostable multivibrator with independent trigger and reset controls. The device is retriggerable and resettable, and the control inputs ...
Low Cost Door Sensor 5 Aug 2013 | 05:15 pm
This compact and affordable door sensor mechanism uses a Hall-effect sensor fixed at the corner of the door frame and a standard bar magnet fixed on the door panel close to the Hall-effect sensor. Whe...
