Week of 4/13

Working incorrectly

Working correctly

This week, I continued to work on trying to get the PCB's working correctly. The current problem with the boards is a lack of correct movement in the wheels. When trying the control them, they some may move correctly in one direction, but will not move in the other direction. After testing the connection between the transmitter and receiver, everything worked normally as intended. With the joystick signals transferring perfectly. After looking at the PCB design, I transferred the receiving back onto a breadboard to test a potential error in my original design. While the new design worked correctly on the breadboard, I realized there was still a problem. When testing the same old design, it too worked correctly on the breadboard leaving me with a dilemma.

Makeshift board

I next moved on to looking at the soldering of the PCB, checking all of the connections to ensure it was all working correctly. After finding some of the potential solders that were incorrect, I went to the solder station and carefully resoldered each of them to make sure all of the connections were correct. However after testing the board again, I ran into the same problem. At the end of the week I decided to cut out a new PCB with the updated design "fix" to see if it would work better however the cut turned out poor and unusable. On Friday, I will use a multimeter to try and see what parts of the motor driver may not be working and if there are any other problems with it that need to resolved.

Poorly cut PCB