Asked
— Edited
Resolved by thetechguru!
Just setup my Roli - quick and easy. Setup Wii controller no problem. Wifi is good and I can do the sample movements like dance and wave. All charged up. I have the ports setup as instructed and I entered the port summary. For the life of me I cant get the robot to move with ARC or the wii remote . I've used the Roli sample project and saved it as a new name. I'm sure I've missed something that is very simple but I can't seem to figure it out. Any suggestions?
Any help is greatly appreciated - can't wait to see it move!
Thanks - Steve
Hello - I am having the same problem as mentioned in this thread. I, too, got my Roli from Maker Shed and everything works fine (i.e., servos, camera and wifi) except moving the tracks. My H-bridge had the red wire to +5V and not VCC as mentioned at the end of this thread, and I was very hopeful that that was my problem, but it wasn't. I checked everything else mentioned in this post, but nothing is working. In all fairness, when I put everything together for the first time and made the connections, I did have the power connection from the H-bridge to the controller reversed and did turn the power on. Only when I discovered that I was not getting any track movement, did I notice that I had the power connection reversed. Did I fry something? Are there some things I can do to verify the H-bridge operation? Thanks in advance for any help...
Likely fried if powered wrong. A few people who had that issue had the H-bridge survive but many were cooked.
Alan
Is there anything I can check to verify that it is fried? A red LED comes on (on the H-bridge) when the unit is powered up... I am good with a volt meter, if anyone has any suggestions as to things to check - might help other polarity-challenged people like myself in the future...
Make sure the little switch is in the down position. Having the led on is a good sign that there might be life there.
Alan
Alan - Switch is in the down position... Are there any other LEDs on the board that might give me some diagnostic help? Thanks! Jeff
Hi @jwheat058
Yes there are 4 more LEDs (A,B,C,D) on the H-bridge that should light up when the direction buttons are clicked on the Roli App or ARC Example Project if the H-Bridge is still ok. They will light up in different combinations of 2 with each new direction selected.
I see you have completed all the relevant tutorials, has everything gone successfully up until controlling the H-Bridge?
Jeremie - Yes, I have gone through all the tutorials up to this point and everything else seems to be working fine (servos, camera). Tracks just won't move. I powered everything up and watched the LEDs on the H-bridge board as I used the small H-bridge window in the ARC Roli example. I did not see any other LEDs come on as I went through and pressed each button in the window. I see the LEDs that are supposed to be lighting, they just are not (other than the right-most red LED which is steady on). Jeff
Hey Jeff,
Thanks for the info. It sounds like the regulator on the H-bridge board is working (hence the power LED still being on) but the H-Bridge itself was likely damaged when power was reversed.