A project log for Ultrasonic Parking Aid without Arduino

Low power, battery operated ultrasonic parking aid.

jscjsc 07/01/2014 at 14:230 Comments

Updated board layout with a pull up resistor and a low side switch to power down the sensor. Hoping the external pull up will reduce the timeouts and checksum errors I still get occasionally. Waiting on PCBs now to test what I hope will be the final revision.

Also made the layout a little denser, to reduce board size.