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For the term "pwm for hho using transistor 2n3055trackback".

Arduino: Ultrasonic Rangefinder Using Parallax Ping and LCD

Here’s a little Ultrasonic Ranger using the Parallax brand Ping ultrasonic transducer pair and the Parallax LCD display. Both are easy to use with the Arduino system. Just don’t try to supply more than…

Arduino: Improved Resolution Ultrasonic Ranger Using Parallax Ping Transducer

I changed the code a little bit to show the resolution of the ultrasonic ranging method used by the Arduino/Ping combination. I think that the resolution is about 1-2 mm at the distance I…

Electric OU: Using the Link DSO 2102m on the Ainslie NERD Circuit, PART 1

This is a demonstration of the Link DSO 2102m Digital Sampling Oscilloscope, a PC-based 2 channel scope from 1997 era. The scope uses the ThinkPad 600e’s parallel port for communication and control and puts…

Joule Thief Lights 100 LEDs Using 1 Wire Only!

My modified Fuji camera AA circuit lighting a string of 100 clear LEDs using only one wire from the circuit. All I have to do is hold my hand near the battery and it lights. When I bring my other hand close to the LED string, they get brighter. This is…

Using PulseFire As A Arduino Controlled Voltage Data Logger (Demo) == PulseFire == RWGresearch

Using PulseFire As a Arduino Controlled Voltage Data Logger (Demo) first of all, i want to than welliam for his hard work!!! == PulseFire == http://open-source-energy.org/forum/showthread.php?tid=440 www.rwgresearch.com RWGresearch

Arduino 7: Switching a Heavy Load Using MOSFET and PV Sensor

Here I continue to demonstrate the versatility of the simple Arduino pot-voltmeter system. NOTE: I get scrambled when I describe the mosfet pin hookup. The Load has no connection to the mosfet gate, it…