Search found 2 matches

by adelz90
Thu Apr 30, 2015 12:14 am
Forum: SuperHouseTV Home Automation
Topic: PE 13: Connecting security sensors to Arduino
Replies: 20
Views: 11222

Re: PE 13: Connecting security sensors to Arduino

If there is a small increase in voltage over the line, the resistor can reduce this to keep it below 5v, or and the use of a zener diode can limit the voltage if a much larger spike comes through. http://www.electronics-tutorials.ws/diode/diode_7.html Thank you very much. I guess it is clear now :)...
by adelz90
Wed Apr 29, 2015 2:06 pm
Forum: SuperHouseTV Home Automation
Topic: PE 13: Connecting security sensors to Arduino
Replies: 20
Views: 11222

Re: PE 13: Connecting security sensors to Arduino

Amazing Video as usual. Thank you very much.

I didn't understand the idea of the resistor and the diode to filter the antenna effect and to protect the analog input from damage. Can you please explain it again or refer me to a link if you don't have time :)

Thank you in advance.