This Device Should Be With You | Brilliant idea

Hello, in this video i will show you a great tool, i will show you a great app where you can safely test zener and leds you can also see the working voltages of leds and zeners. thank you so much for watching see you in the next video don't forget to subscribe to support me this is really important to me
LED Tester
Voltmeter
Multimeter

[@rio_s4041]

Ну допустим светодиоды проверить на потребление вольт - это я понял. А обычные диоды для чего проверять?

[@ronishbarakoti4371]

Hi sir, I need small help I have 808nm 200mW IR laser diode and I make simple driver circuit board for this laser diode but it doesn't work.can you give me suggestion or tutorial for how to make circuit board for this laser diode and it's work properly.