JLCPCB Prototype for $2(Any Color): https://jlcpcb.com
First test of the PWM5 ThruHole solar charge controller on a lead-acid battery and small solar panel. You can watch the pulse width modulation on an oscilloscope by connecting it across the solar panel terminals.
First test of the PWM5 ThruHole solar charge controller on a lead-acid battery and small solar panel. You can watch the pulse width modulation on an oscilloscope by connecting it across the solar panel terminals.
Excellent tutorials. Subbed and liked 👍 😊.
I had the same problem with switching to AC. On DC it wasn't responding. Cheers. Thanks heaps. Cheers from Australia.
Nice.
And it’s just a case of pulling these two sharp pins out of my fingers and stopping the blood… Am I the only one who cringes when you use those pins?
Why 13.5? Everything I have ever seen or heard says 13.8 volts for lead acid type cells like that…one of my batteries even has it marked on the battery
The device looks so cool (I mean visually), Julian !
If you're going to use pins, cut them shorter, i can see a pin bending as you force it onto the wire, and the other pin sticking into you.
Though it would be easy to do the connections proerly
or do you like living dangerously (remembers the packaging opening)
Julian, towards the end of the vid you said you'd then remove the header pins and seal it all up.
Just a thought, maybe make life easier – have you tried pogo pins (search the term on e-bay for a photo)? Little spring loaded pins sort of like the bars that hold your watchstrap in place. They come in a range of diameters and have pointy ends. Basically mini probes you solder down to match the layout of what you're connecting to.
Solder the pogos onto veroboard (or make u a PCB) to match the spacing of data lines or component legs – then you simply hold the "fork" to the pinholes or onto the pads and apply a little pressure while you test or squirt in the code and then move on. The spring loaded pointy pogo pins usually makes a good contact and you can work down a line of boards programming as you go without needing to solder and unsolder. Also good as PCB test probes. I have a few made up for "typical" 2.54mm configurations I use.
Nifty. Like.
Isn't 13.5V a little low to charge a battery in the bulk phase ? Most AGM battery can handle 14.4V no ?
pot it into epoxy – Weatherproof for sure, but hardly servicable if needed 🙁
Julian, did you ever think about using a 2 colour LED ( one colour for attained charge and the other to blink out the voltage) ? Just a thought.
Also, I have been subscribed to your channel for years and just had to subscribe again. Is that normal?