Pacman robot

Nice job. Add some pid control to smooth out the drunk walk and its golden :smiley:

We definitely want to see more obstacles though. only one doesn’t tell the whole story :slight_smile:

Who said MaxBotix is great? I ordered 2 today, and here are the reading. Disappointment. >:(

C: 244.08
C: 250.43
C: 250.43
C: 245.27
C: 249.24
C: 280.99
C: 254.40
C: 245.27
C: 246.46
C: 244.08
C: 250.43
C: 246.46
C: 32.94
C: 250.43
C: 253.21
C: 248.05
C: 245.27
C: 242.89
C: 330.99
C: 249.24
C: 245.27
C: 249.24

updated: added a 47mfd capacitor seems to be a bit better.

For the Maxbotix the following setup is recommended in noisy environment. A similar trick I’ve been using on the Sharp GP2xxxx sensors. A 10µF and a 100nF SMD capacitor across the VCC and GND pins direct on the sensor, give a better output signal. I’ve seen that MarkH has written some new drivers for the Sharp sensors. Didn’t tested it yet, but I will verify the result with a modified and an unmodified sensor.

I working on new software for pacman, showing new tricks like maze solving and navigating around multiple obstacles. A PID controller is on my todo list, too.

Thanks,

I added a 47uF, I thought that would fix the issue, but after spent something to test it last night just to find out it really not helping. I hate adding too many hardwares onto these already small sensors making them look crowded like pices of junk. After I quiting last night, I thought of an algorithm for the filter that I think it will work. I will try it tonight.

Thanks!