Program 12f683 with microchip pickit3 in programmer-to-go mode
I use Microchip's PICkit3 to program the firmware into the 12F683 for my PWM5 Solar Charge Controller. In programmer-to-go mode…
1602 lcd module blew up my power supply – a cautionary tale!
Not all 1602 (or 16x2) LCD modules are 100% compatible with eachother. Most are, but I found this red one…
555 timer oscillator driving led or loudspeaker
Simple 555 oscillator circuit with LED on the output pin. But at high frequencies the LED isn't any use so…
5a pptc polyfuse repairs itself automatically after it blows
This is a homebrew self-repairing 5A fuse which uses a PPTC or PolyFuse. I've also added an indicator lamp which…
What colour are the leds underneath the phosphor of this cob led?
This 5W COB (Chip on Board) LED has a circular layer of phosphor impregnated jelly poured over the array of…
How to take the curl out of pvc coated equipment wire
Using fluted plastic board to de-curl PVC coated equipment wire
12v wireless 315 mhz remote control relay board 6-channel
There are lots of different versions of this wireless remote control relay system on eBay. From single channel units up…
Burned out 12w gu10 led spot light dismantled – problem found
This 12W GU10 LED spot light burned out after several hours of use. Took it apart to find out what…
How to remove snow from solar panels – fast
Snow on my solar panel is blocking the light so the battery isn't charging properly. No point messing about with…
Are gu10 led spot light bulbs inherently safe or dangerous?
After discovering an alarmingly dangerous GU10 LED spot light, I decided to look more closely at the typical electronic circuit…