Arduino mppt solar charge controller #14 – stable current measurements
Noise in the current measurements has been eliminated. Movement of the Watts bargraph is now silky smooth. Closing the loop…
Using the acs712 hall effect current sensor module part 3
The ACS712 module has quite a high level of noise - around 130mA. But that's with the 10nF noise filter…
Converting ip network cctv security camera to solar power
One of my IP security cameras uses separate 5v and 12v mains power bricks for the camera and heater/fan. But…
Updates to 12v 100w led hardware – heatsinks, grease lens/reflector
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…
Roundup of switched mode buck converter voltage regulators
A full round up of switched mode buck converter voltage (and current) regulator modules. From the very simple (and very…
Experimental welding without welding equipment just solar panels
I noticed that my 80W solar panel produces a sustainable arc when shorted out. I wondered if could weld metal…
Mppt solar charge controller #13 – conductance, digital filtering and algorithms
Starting to think about MPPT algorithms - P&O (perturb and observe) is simple to understand, but can oscillate around the…
Comparing a 100w led with 2x 55w h4 car headlight bulbs
Most people are familiar with regular H4 car headlight bulbs. Here I compare regular H4 main beams with a 100W…
Exploding diode
I created this video with the YouTube Video Editor (http://www.youtube.com/editor)