Timeline for How to use electrically isolated weak signal for Arduino interrupt?
Current License: CC BY-SA 3.0
8 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| May 13, 2013 at 22:57 | answer | added | Spoon | timeline score: 2 | |
| May 13, 2013 at 14:07 | answer | added | krs013 | timeline score: 0 | |
| May 13, 2013 at 13:45 | comment | added | krs013 | How did you measure the voltage to be 2 V? Are you sure you weren't overloading the signal generator with a low resistance or a short-circuit? Even when powered off batteries, that signal generator should output 3.7 V, which is enough to trigger the Arduino, so you should just be able to connect it directly. Arduino input pins have a high input impedance. | |
| May 13, 2013 at 8:39 | comment | added | Connor Wolf | Please provide a schematic of how you have your circuit connected up. | |
| May 13, 2013 at 8:37 | comment | added | Connor Wolf | I don't think you're using the optocoupler correctly. Go read the datasheet again. You do know that optocouplers generally don't output voltage, correct? | |
| May 13, 2013 at 8:00 | history | tweeted | twitter.com/#!/StackElectronix/status/333854343021342720 | ||
| May 13, 2013 at 7:31 | review | First posts | |||
| May 13, 2013 at 7:32 | |||||
| May 13, 2013 at 7:11 | history | asked | Chris | CC BY-SA 3.0 |