I been trying to get used to using the Sequencer and it makes things a lot easier.
I have a video of two SEQ attempts. I discovered the aluminum head complicates things a little bit, such as the tendency to spin on its heals just a tad. I plan to move the torso more forward in future walking gates to reduce the heal spinning. I was trying to keep the battery on a level plane, but the head causes to much load on the rear of the shoes between steps. I also don’t have the battery tied in very securely, it’s just loose temporarily.
Excuse the poor lighting, I’m down to one out of four light bulbs in my ceiling fan.
From the looks of the way it walks, it looks like it may be too top heavy becuase of the head’s weight and how high it is. I think it will even things out if you move the torso more a bit (seems like you’re going to do this anyway). That should work.
Work in progress, but it really looks good! Is the head functional yet?
Thanks for the kind words. The head can rotate but I wanted to focus on getting used to using the SEQ software and practice developing walking gates first. Unfortunately I fried my speakjet board just in time for the arrival of the rest of my parts and seq software.
I need to play around with the sequencer a little more to become comfortable with it, then I plan to try to get it to run from the Bot Board to see how it goes with that, and eventually progress to sensors and putting the ears to use. There’s a lot to tinker with.
The first thing I’d do is get rid of that big db9 serial cable and replace it with thin light wire. I looked at the other youtube brat videos and all most all use the big cable making the bot more top heavy than necessary.
That seems like a very well planned out idea. I agree, working with the SEQ before you continue with any more boards will teach you more about how the bot walks with the head, that way when its time to program, you will be able to get the robot to walk correctly when responding to a sound from the bots ears.
Keep it up, long running project that is one of the most interesting on the forum IMO 8)
Absolutely. I regret not getting a blue SMiRF for that very reason, plus its a pain dealing with only 2 feet of surface. The wall pack pulls a bit also but not nearly as bad as the DB9 cable.
I was looking for a nice place to mount the battery power switch and came up with a nice solution. The ASB-06b (L-bracket) makes a fantastic switch mount for the Lynxmotion battery wiring harness. Bellow is a picture of it installed on the BRAT channel bracket.
This next image shows it installed with no interference with the Bot boards and it’s solid as a rock and helps prevent the electronics carrier from becoming loose from the constant force of flipping the switch on and off.
The left side of the brat shows the cable routed behind the SSC-32 and the Mini-ABB boards for a nice exit right to the battery. This also helps take up excess cable length for a more compact neat installation.
So if anyone wants a nice solid mount for their switch try using any of the SES brackets. The switch will mount in any of the SES brackets center hole.
I have another video showing the Basic Atom PRO playing four sequences end to end. I wanted to see how it looks with each sequence played back to back to give me an idea on how I want to end each sequence before another one begins. I’m just experimenting, and I am not looking for perfection, just having fun trying different things.
Here’s a video showing the one temporary arm installed on my BRAT. I have also upgraded the servos in the legs with HS-5645MGs to be able to handle the increased weight of the arm servos and brackets.
Nice Video. I thought about adding arms to my Brat but decided I would also need to update the servos as well. Mine does not have the SSC32 installed on it either, but earlier I was working on my own sequencer, which was far more primative using VB and code on the atom pro and the sequences were stored in the EEPROM of the pro… But I found I was not very good at doing the sequences.
Yeah, I’m really pushing the limits of the brat design. With both arms added, the HS-5645s are really going to get a workout. There is no way anything less than 5645s can handle the job, even if you used 645MGs, it would be pushing it in my opinion.