Experiments, inventions, patents, …
I needed to record some time-temperature-power data over a long period of time. So I made this Arduino simple intervalometer to control the Canon camera through its external shutter release cable jack. The system…
The APMC (Arduino Pulsed Motor Controller) v1.0 is a very useful tool designed for helping the experimenter who want to explore the Delayed Lenz Effect or the Magnetic Lag Effect and want to test…
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…
CAUTION: Flickering lights: if you are prone to seizures or are affected adversely by strobes or flicker please don’t watch this video or build this project. I can’t be responsible for any adverse… or…
A single RC servo and a couple of cheap CdS photoresistors make the Arduino “look alive” by making a simple light tracker. With just a few lines of code you can make the arduino…
Color Organ featuring Software Fast Fourier Transform in real time. Please see the earlier Color Organ videos for the program sketch download location and the full credits to the folks who wrote the original…
Another application of the simple, sensor driven voltmeter. The 2n3055 bipolar power transistor is used along with the Arduino’s pwm output to function as a sensor-controlled light dimmer. The photovoltaic cell is still useful…
I used the same circuit arrangement as in the last video but with the addition of a piezo speaker element. A negative-coefficient thermistor is used along with a 1K resistor as the “potentiometer” sensor…
By suggestion, I hooked a simple PV cell to the potpin sensor input, and recalibrated the sensor range using values read off of the Serial Monitor tool in the Arduino IDE. I show how…
Note: improved and commented program sketch for the system, curing some of the problems, can be downloaded at: (new file, minor bug fix) www.mediafire.com Here’s the system taking shape. I am to the stage…