My e-fun notes (electronics fun)

Up: My tech notes

 THE NEWEST NOTE
​ 239 Fully charging hearing aids from power banks – Hvordan lade et høreapparet fra en powerbank (**)
 OTHER
213 Et strippet og ombygd voltmeter – A stripped and rebuilt analogue Voltmeter for a play​
​209 My xC softblinking PWM notes – Two old analogue meters shown
​205 Adapting without a button battery – Saving on button batteries
198 A LED string dissected – How does a LED string work?​
​195 CAD/drawing tool iCircuit, Eagle, Fritzing or..? or KiCad or Circuit Simulator
​132 Electronics and building blogs
 SOME INTERESTING SHOPS
​Standard disclaimer

  1. Electrade, see https://electrade.no/lysdioder_LED.htm – here a LED page. (Thanks, son Andreas, for this url!)
  2. Adafruit, see https://www.adafruit.com
  3. MIKROE, see https://www.mikroe.com
  4. PIMORONI, see https://shop.pimoroni.com
  5. Kemo Electronic, see https://www.kemo-electronic.de – like the LED tester. But you need to find a reseller!

Updated 01Jul2024