Good morning all…
You can set the Arduino's PWM frequency with great accuracy by using this library. Links: http://forum.arduino.cc/index.php?topic=117425.0 https://code.google.com/p/arduino-pwm-frequency-library/
Here's a simple dual opto-isolator driver for an N-channel MOSFET on the high side of the load. A very simple…
Here's a simple dual opto-isolator driver for an N-channel MOSFET on the high side of the load. A very simple…
The Arduino has a fixed PWM frequency of 490Hz - or does it? On digital pins 3, 9, 10 and…
These 5W and 10W COB LEDS are made up of 1W LEDs in a matrix. I'm using a purpose made…
High power LEDs differ from regular LEDs in a number of respects. Firstly, current regulation using resistors is impractical so…
Noise in the current measurements has been eliminated. Movement of the Watts bargraph is now silky smooth. Closing the loop…
The ACS712 module has quite a high level of noise - around 130mA. But that's with the 10nF noise filter…
One of my IP security cameras uses separate 5v and 12v mains power bricks for the camera and heater/fan. But…
Help support Julian's LED videos on Patreon: https://www.patreon.com/julian256 To run a 100W LED from a 12V battery you need a…