Multimeter RS232 Hack
The small white component is a 4N35 optocoupler that I desoldered from an old switch-mode power supply. There's a 330Ω resistor underneath the sleeving, too.
2,348
views
0
faves
0
comments
Uploaded on May 8, 2012
Taken on May 7, 2012
Multimeter RS232 Hack
The small white component is a 4N35 optocoupler that I desoldered from an old switch-mode power supply. There's a 330Ω resistor underneath the sleeving, too.
2,348
views
0
faves
0
comments
Uploaded on May 8, 2012
Taken on May 7, 2012