[Hardware Issue / Project Suggestion] Increase threshold for digital input
redoxcode opened this issue · comments
Hardware Issue: Increase threshold for digital input
This is a minor Issue, but should be addressed when a hardware revision is made:
The threshold for the digital input to read as high is about 0.8V with the current hardware.
This might cause accidental triggers when used with noisy or not perfect square eurorack signals (8-10V cv)
Expected behavior
For eurorack levels it would be better if the threshold would be increased to something between 2.5 and 5V.
Yup, this is a very good point! For future hardware it will be higher.
For the current hardware you should be able to very easily hack the threshold to be higher too: By soldering a resistor from the cathode of D1 to ground you will create a potential divider on the input before it reaches the transistor. The input resistor is 100K, so a simple potential divider equation can be used to set your own input threshold.
| Added Resistor | New Threshold |
|---|---|
| 100k | 1.6V |
| 47k | 2.5V |
| 18K | 5.24V |