Changes by last author:
Changed:
* Add 10K pulldown resistor to stop the Jacobs signal floating, given that there's nothing else active yet the signal is "noisy". Pullup would be nicer, but the Jacobs is an unknown quanity and I'd rather not break it just yet. |
* Add 10K pulldown resistor to stop the Jacobs signal floating, given that there's nothing else active yet the signal is "noisy".
** Pullup would be nicer, but the Jacobs is an unknown quanity and I'd rather not break it just yet. ** why not add a 100k pullup to 5V and a 5k6 pulldown to GND ? This should stop noise, and the (appr 250mV, 5k impedance) signal cannot harm the Jacobs |