Quantcast
Channel: Reprap Forum - Controllers
Viewing all articles
Browse latest Browse all 10211

Re: can't make Endstop_1.3.1's signal detected by arduino UNO + have a weak LED's light

$
0
0
Which signal voltages do you get?

The LED is fed with current/voltage from the signal, so it's not possible to give more juice without dragging the signal even lower. The given resistors are choosen carefully to give about 4V signal voltage (ATmega specs 3V as minimum for logic "1").

If you want a bright LED you'd have to add an amplifying transistor (and loose the K.I.S.S. principle somewhat).

Viewing all articles
Browse latest Browse all 10211

Trending Articles



<script src="https://jsc.adskeeper.com/r/s/rssing.com.1596347.js" async> </script>