Magnethead494
Well-known member
Hello,
Using TeensyLC to toggle a darlington array based on frequency input (33hz low end, 48hz high end). Right now I have the example Serial_Output loaded up on the breadboard. While it seems to work fine for a signal that pulses 3.3V on/off, it does not seem to work well for a signal that pulses between ground and floating. I added a 10K pullup, and that still didn't work.
What is the best way to go about this?
Additionally, with nothing connected, I get a steady 60hz reading. I assume from AC bleed through the computer/USB cable. What's the best way to filter that out?
Thank you.
Using TeensyLC to toggle a darlington array based on frequency input (33hz low end, 48hz high end). Right now I have the example Serial_Output loaded up on the breadboard. While it seems to work fine for a signal that pulses 3.3V on/off, it does not seem to work well for a signal that pulses between ground and floating. I added a 10K pullup, and that still didn't work.
What is the best way to go about this?
Additionally, with nothing connected, I get a steady 60hz reading. I assume from AC bleed through the computer/USB cable. What's the best way to filter that out?
Thank you.