Asked
— Edited
Resolved by Rich!
received roli the other day. went through the following steps:
- unpacked everything and laid out on table.
- verified all parts ordered were received and set up charging since it was a no brainer
- opened up ez software
- noticed there was "getting started tutorial" link, clicked
- started tutorial from here in the roli (https://synthiam.com/Tutorials/) 5a. Did not find tutorial very intuitive as it did not explain how to assemble roli
- went back to ez software, click "example projects" link
- clicked roli example
- asks me if i want assembly instructions, click yes
- start through instructions
- all built as per instructions 10a. no mention of "red and black" wires left dangling
- all assembled plug in charger under roli, light goes green
- turn on roli, scares me with loud voice.....
- notice there is arrow buttons for moving robot
- hold up robot and click the forward button
- no movement
- notice "connect" buttons in "connection dialog" click top one
- pop up asks me to see "getting started" tutorials, click yes
- follow instructions and "connect" to roli, says i successfully connected to roli
- try movement buttons again, no movement, just buzzing
- go back to website, click "connecting H-Bridge"
- much better pictures than instructions in ez software
- verify my connections are same as pics
- notice the "red and black" dangling wires are shown as connected in this tutorial
- connect as shown
- try clicking movement buttons, no movement, smoke....stress
- shut down roli
- go to website and do most tutorials, also maintenance/care tutorials
- turn on roli, connect, try movement, nothing
- search forums for similar problems, found @stephenhoey has similar issue (https://synthiam.com/Community/Questions/6809)
- decide to not hijack his thread and start my own
i hope this helps someone help me. i will be taking the roli apart and posting pics shortly.
The two photos we need are a close up of the EZ-B connections and a close up of the H-Bridge connections. We can then verify if it has been assembled correctly.
Does your EZ-B still power up? Smoke is a scary thing, but could just be that the fuse blew. If you look in the thread you left, we identified that the power connections were wrong on @stephenhoey's H-bridge. When you open up the case, there is also a fuse holder. If EZ-B no longer powers up, check that fuse.
In your post, you mention "no mention of "red and black" wires left dangling".
Are these the wires with the little plug on the bottom of Roli? (those are for the battery). there should be no dangling wires inside once you properly connect the H-Bridge. The red and black wires for the H-Bridge go on the red and black pins of port D0 to power the H-Bridge as shown in both the tutorial and the assembly instructions video.
Alan
Here are the pics....
Does your EZ-B still power up? > Yes, power still comes on and can connect > Fuse still good
In your post, you mention "no mention of "red and black" wires left dangling". > These were not mentioned in the "assembly" instructions in the software. found them in the tutorial and plugged them in
not an electronics person, but there seems to be a burn on one of the "chips" in the photo. not sure if normal, but may be cause of smoke?
absolutely nothing from the movement controls now, but still connects and can use camera.
Are you talking about the HBridge? If so count yourself lucky as they cost next to nothing to replace ($15.00... I mean if you have to)...
Here is the "chip" in question
It's difficult to see from the direction of the photo but check the red wire is in VCC not +5V and also check that the button is pressed down.
If the other way around and the button wasn't pressed you would have sent >7v in to the +5V of the H-bridge which may explain the smoke.
If that is the case (and I suspect it is from the other photo) it may be a warranty issue as it was incorrectly assembled in China.
as per the support in the other thread, it appears that the power cables are backwards....