Canada
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Wheeler Chair Robot

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I saw that last year somebody had built a wheel chair robot?. My idea for the new Robot will be as a stage mascot that can also pretend to play the drums on stage. My brother has a live Metal band every Saturday night and most of the time we have trouble with no drummer showing up. We end up using a Drum machine instead with the 2 other guys on real guitars and singing. So Terminator will be able to move around and substitute behind the drum kit with the Live drum machine signal activating terminator arms at the drums. Also need him to move around in a wheel chair , so is anyone out there that has done this wheel chair hack, looking for suggestions on power/motor controller connections etc...should not be too hard just larger than I'm used to building. This is a youtuber that bought what I just bought,takes a month to get from China and we are building the rest of the Endoskeleton to integrate in wheel chair....

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Canada
#137  

Oh right I forgot about the Ground wires should be common on the 2 EZB's,will try that! I have been concentrating on trying to get the 7" touch display working on the robot chest with the Latte Panda. So far only the HDMI going to my monitor works fine but the 7" touch screen just lights up dark grey with no text or picture. Suspecting it is a defective touch display may need to send it back for another one. Meanwhile I can still use the Panda win10 to actually get EZB -3 working since it has Bluetooth on it which none of my older computers had. Then I can still have the EZB-4 with more servos attached and the built in Arduino on the Panda can add even more fun sensors and gadgets. One final note or warning...if you buy the Latte Panda with clear Acrylic case, if you have large man fingers you will experience hours of frustration putting all the tiny pieces together! Took me 2 days not the 1 hour it says online,LOL!

Canada
#138  

Well that is awesome, I finally got the 7" latte panda display working so now I can figure out the mounting on the robot. I also need to find a good way to power up the panda using my main 12 volt motorcycle battery. so I am thinking to also use the EZB v3 as the 5 volt regulator and use the special power pins on the panda, hopefully EZB-3 has enough current amps for the job as it is very picky about which USB charger would work (some phone chargers too week) I ended up using the USB power adapter for my google mini speaker but not sure what the Amp specs are on that,need to research all this and compare with the EZ3 regulator specs to see if they match.

Canada
#139  

Well Great success....I have a 7.4 Lipo battery powering the EZBv3 which is actually supplying the regulated 5 volts and unknown Amps to the Latte Panda that is running a 7" touch display on the robot chest, a full size keyboard, a wireless mouse and HDMI output to my Giant TV all at the same time! I am typing this now on the Panda! Next to wire it all up to the Motorcycle 12 volt battery. I hope to roam around the yard with windows 10 on the robot chest running some old ARC scripts I saved!

#140  

Good to see you managed powering all your peripherals ...I always get very nervous when doing this, you'll burn a lot of money if this goes wrong!!

I can clearly see how relieved you where when that Latte Panda powered up!!:D

Canada
#141  

I had an interesting night last night trying to see how I can keep the on board Latte Panda computer running on the robot using just battery power. The requirements of the USB power on the panda are 5 volts 2-4 Amps. However, the Latte web site says that if you make a barrel jack power adapter that go to the Panda power pins(next to the fan power) It can handle much more current than the USB connector. So I tried using the power pins connected to the EZB3  5 volt regulated pins and with all the battery types I tried I was surprised to see that a lead acid 12 volt 4.5 Amp battery could not power up the Panda, An 8.4 Nimh 3000 Ma battery powered it up for a few minutes but my 7.4 5000 Ma Lipo (that I use with EZB4) could run the panda up to half hour. I think I also tried my bigger 12 volt motorcycle battery 18 Amps going into the EZB3 volt regulator and into the Panda but only powered the Panda for a few minutes? So I am actually looking at either buying a 10000 Ma 7.4 Lipo battery or one of those new Lithium power packs that have 20,000 Ma and cost about the same as a 10,000 Lipo battery......I am thinking a Lithium power pack would last way longer...Decisions,decisions. I also believe eliminating The EZ3 as a regulator would benefit the Panda.I don't know what the rated Amp 5 volt output was on that EZ3. All these tests were with everything on including EZB4 running a sonar sweep for the robot.

Canada
#142  

So when I tested my 7.4 Lipo battery yesterday, it was not at full charge, I am trying again right now and I started up both EZB's the Panda computer and running a sonar sweep ,started 9:00pm and it is now almost 10:00 pm so a good hour now! The wheels will be using the motorcycle battery separately which can last a day or 2. So always fully charge your Lipo with a good balancer charger Gang!:D

Canada
#143  

As you can see I had to organize the bird nest of wires a bit better,still can improve that by adding a front contact bumper to hide all the wires. The battery fits great but can't put it in until outside as it is heavy. Damn panda display ribbon broke,need to buy another display.HDMI still works but it was so cool to have a mini display on the robot. Big battery works great to power sensors,bottom motors,eyes,BB gun and EZ3. Lipo will do the EZb4 and Panda until I get better lithium battery bank.

Canada
#144  

Terminator T-800 able to balance better with battery at back,Larger front wheels are the next step for higher speed and weight distribution. Here he demonstrates Guard duty outside.

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