We have a practically finished schematics design for an electronic industrial product, but we have two problem issues, which are related to:
1.) The zero-crossing detection of a sinusoidal signal from a VR sensor.
2.) The serial USB communication.
These two functionalities are not working reliably due to VERY nosisy operating conditions, which is due to the fact that our product is an ignition control unit that generates high-voltage sparks. We are looking for someone who is qualified to help us overcome the problems we have with the reliability of these two functionalities.