LED Tester

LED tester
#elektronik, #hobi, #nasılyapılır, #howtomake, #diy, #arduino

[@tameromarw]

🌹🌹👌

[@henrikworg350]

Hi, i dont understand your LED tester. Tester means check working or not ... you only need the resistor, your PSU and 2 wires for this to check LED. What is the usage of the V-meter?

[@FardinAmiriSF]

so you can see throw the v meter how much volt that led uses

[@henrikworg350]

@@FardinAmiriSF the voltage is not interesting. For LED the current is important.

[@mstfproje]

voltmeter shows the voltage falling on the led, the voltage difference between the same type leds shows the degree of wear.

[@wernerpeter9706]

​@@mstfproje Degree of wear, tolerance within production, different LED type, contact resistance of test probes... There are so many possible reasons for changes in volts. That's also a high-precision voltmeter :-) Instead of this flying setup, it's better to use a transistor tester for $10 or $15. In addition to the diode test, many other components can be tested.

[@reshairo]

How many input voltage ?
Minimum maximum input voltage for your schematic ?

[@entertainmentdudes]

Looks like 27.5 volts input on the video

[@reshairo]

@@entertainmentdudes noted with many thanx

[@mstfproje]

I have 27.5 V dc, you can use the dc voltage you have

[@reshairo]

@@mstfproje thanks for the reply, can i use 12v for the same circuit ? Or do i have to change anything ?

[@mstfproje]

@@reshairo it will probably work

[@analisielettronica]

With green leads ? Is It a Power supply?

[@mstfproje]

green-headed black cable - , green-headed red cable + DC

[@williamwong5627]

Metre is a measurement and meter is a device.

[@mstfproje]

What exactly did you want to say

[@williamwong5627]

@@mstfproje Look at the title of your video.

[@user-lm8pm5gv5g]

Why choose a 2.2 kOhm resistor ?

[@mstfproje]

for current limit ~14 mA

[@shafiqansari4344]

Ampere kese maloom karain

[@mstfproje]

I did not understand

[@tatashop955]

Volt meter nya harus 3 kabel ya?

[@mstfproje]

kabel merah adalah kabel listrik voltmeter, tidak perlu 3 kawat

[@tatashop955]

@@mstfprojemaksud sy klo pakai volt meter yg 2 kabel apakah bisa? Thank you