Hello. Sorry to interrupt.

I bought a pair of bot bitz 85s for my 4 drill drive lifter. I seem to notice it's stopping after being pushed straight to full throttle. Is that a known bug or unheard heard of?

It's 18V drills on a 6S lipo. According to the battery charger, it's currently on 25V.

Try adjusting your channel end points. Sounds like they are shooting past the max input signal and putting the controller into failsafe.
This thread was created for discussion on programming and developing the brushless conversion, not troubleshooting BotBitz products, so email sales@botbitz.com and they can sort you out
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https://www.halfdonethings.com/

Evening all, I have a dilemma:

I bought several SiLabs Plush10s with the intention of reprogramming them with Steve's code. I've read all 48 pages and CANNOT for the life of me find out which pin connects to which pin on the usb debugger. I see the 4 programming pads on them, but I am a penniless college student and cannot afford an oscilloscope to analyze them myself.

I've read all the comments in the coding and couldn't find any info, nor am I too good at understanding the F330 datasheet. Would it be possible to get a step-by-step guide on programming these?

Thanks, and by the way, amazing work has been done here. I love that this actually works. I just need to, well, get it to work.

Ah yeh. The data sheet is pretty clear on the pin out and the prog pin connections. Its just 5V GND Reset and a data line. You don't need to analyse them just read the data sheet and trace.

I don't have time to write a guide for this or support it. SiLabs unlike atmel has 0 support online so you really need to know what you are doing, supporting people to do Atmel ones is already difficult enough when there is 1000s of tutorials with regards to using them on the internet.

Steve
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Steven Martin
Twisted Constructions
http://www.botbitz.com

1st off all just saying hi to everyone here

now ok I have a problem I have programed these 85a controller's and tried them out in 2 fights 1st off all they cut out after about 1 min and the next fight was we drove in this is after moding the travel to 60% but because we had to wait a long time 3 or 4 mins for 321 fight the bot never moved (great flipper still worked )

now I know there's different firmware (hex files) to load to these controller's and would like to know which .hex is best to use PLEASE

running speed 900 with spectrum dx6 (tried dx7 as well)

thanks in advance
John
Team Beast UK

Do you think the ESC may have shut down due to high temp?

well its the only thing left (read these could run a heavy lol)

Im not sure which file I have programed onto the controller's its the same as Gary has but he does not run a spectrum but if u remove link and replace works again for a short time
Need to reprogram with code which has the temp cut out removed

Please

John
Team Beast UK

Hi John,

sounds like the same problems i was running into when i tried using the program yourself method. The Botbitz ESCs have the current and temperature limits removed whereas the free code still has them in. It is possible to remove them but you'll need to know a bit about programming to alter the code.

Using a DX6i will work with the Botbitz controllers but when i used the elevon function with some mixing to get 100% throws (as opposed to the elevon's 50% throws), it sends the signals above the 100% mark so the ESCs will failsafe. The guys at Botbitz are working on a 2nd programmable version of the ESC which will be able to deal with this issue so fingers crossed it will arrive in the near future.

ahh thanks Dan so in the mean time we have to wait ?

cheers

John
Team Beast UK

ps have to get some premoded then can I exchange 4 self moded ? for 4 modded properly

Unless you know someone who knows their way around programming then yup!

Wouldn't know about exchanging ESCs, sorry

Guys, grab the code from the repository, disable the thermal limiting in the TZ85A Header

code:

---

//Do you want TEMP LIMITING
#define TEMP_LIMIT 0

---

ok thankyou knightrous

I have had the code edited for me by Kane Aston (Behemouth)

he has also edited the spectrum problem (we hope) just have to try it now

thanks to Marto as with out this info and your time we would not be this far

ill let you know when I get round to reprograming and testing it

John
Team Beast UK

Hey,

I think we've cracked the spektrum mixing issue and set the temp limit digit to 0 so hopefully will be able to give a good test at the weekend! After that, I'd like to post the .hex code on the UK forum so others can fix it too.

Thank again for all your help!

Dan

New guy here.

I found this site searching for a motor controller for a remote control lawnmower I'm going to start building.

Even though wheelchair motors are huge they are geared low and don't draw as much amperage as one might think.
A lot of people are able to use a Sabertooth 2x25 controller.

However I'm cheap. Hence my attraction to using an HK esc that has been programmed to run a brushed motor.

Given a 25amp peak rating and the need for reverse can anyone suggest a particular model ESC? I'll be running either a 24v lead acid or 6S lipo setup.
I want to run a tank like setup or maybe some sort of mixing so only one stick is needed.

Another sticking point... I don't yet know what stall current draw might be.

The TZ85A ESC is probably what your looking for then.
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https://www.halfdonethings.com/