Turnigy tz85a from BotBitz

[Eventorizon]

Re: Turnigy tz85a from BotBitz

These guys do one that is capable of reverse, in software, if i remember right.

http://www.teamnovak.com/

The motor but remain stationary at the time of the switch or it will turn itself off until you do a manual reset.

[daliad100]

Re: Turnigy tz85a from BotBitz

There's also the various SimonK firmwares that can go on many of the cheap esc's.
Not sure if that ones on the list though.

[RobotExtreme]

Re: Turnigy tz85a from BotBitz

Hi,

Today i received two TZ85A from HK, how i'm accustomed to desolder smd components, i removed the Atmega8A to program,
to my astonishment neither worked! And had the same problem ( even without the rx, after ~10sec that i turn on they turn in one direction and stop, and never more work) after this i removed again the uC and program again, the same problem, i already programed by a USBasp programmer and the same problem.

Anybody already had the same problem?

Monday i will put the original uC in the place (to my delight, i kept the brushless uC)


Tnks!

Guilherme Ferreira

[typhoon_driver]

Re: Turnigy tz85a from BotBitz

Guilherme, I'm planning on reprogramming mine this weekend but i'm going for the rough and ready reprogram the current chip in place. Not sure if I'll have any issues but time shall tell.

[shakesc]

Re: Turnigy tz85a from BotBitz

I just followed the instructions on the website and have programmed TZ85a fine
Well worth having a go at

[Danjr1]

Re: Turnigy tz85a from BotBitz

Here's a good one for you all to solve cos I can't get my head round it.

I use two 85a escs. One had its red wire cut so only one esc was powering the esc. Fought 6 fights not a problem.

After the final fight, the link is taken out but the comes lose within and pulls the wiring a bit but can't tell exactly where. Now the esc that was powering the Rx isn't able to power it anymore and only works as an esc but only does that if the red wire is connected?!

In short, both escs have their red receiver wires connected now but one esc only works at all with that wire connected but won't work as a BEC also. Surely it shouldn't work at all rather than that?!

[typhoon_driver]

Re: Turnigy tz85a from BotBitz

Sounds like the link the between the BEC pads inside has been broken. The turnigy speedos come with a switch that turns on and off the bec via two pads on the board. It looks like the bot bitz speedos connect this inside as I did with my own speedos. The easy thing to do is to not bother doing anything as your setup works. The other option is to open up the nackered speedo. There should be two pads on the power in side that should be connected.

[Danjr1]

Re: Turnigy tz85a from BotBitz

Sorry to sound dumb but are you talking about the physical on/off switch that the original speedo came with but botbitz remove?

What can't get is how it happened?! Could you tell me roughly where in the esc these pads are?

[typhoon_driver]

Re: Turnigy tz85a from BotBitz

That would be my assumption, yes. From memory, if you open up the speedo and are looking at it with the power wires on the left and the motor wires on the right then the pads are in the top left hand corner.

[Danjr1]

Re: Turnigy tz85a from BotBitz

Cheers. Will have a look when I get 5 mins. Mega annoying when the robot works so well all weekend!

I'll update the forum as well for future reference for others.

[Danjr1]

Re: Turnigy tz85a from BotBitz

Just had a look. They are still connected. It's defo an issue with the esc as I've isolated it to that.

[Danjr1]

Re: Turnigy tz85a from BotBitz

Can someone remind me how long the shipping takes for botbitz controllers to the UK?

[Ellis]

Re: Turnigy tz85a from BotBitz

I'd say leave 10-14 days, or longer. Ours (to Spain not the UK, mind, with several bank holidays messing things up) took 20 days if I remember right.

[typhoon_driver]

Re: Turnigy tz85a from BotBitz

Buy a programmer for £15 online, solder the connections to a turnigy 85a controller (around £25 each) and you have as many as you need. Give a man a fish and all that.

[Danjr1]

Re: Turnigy tz85a from BotBitz

Think that will be the way forward. I've ordered a new botbitz esc for now and any future ones will be hacked by myself. Have you got a link to the programmer please? Also, have you got a link to the instructions for the hack? I remember seing them but can't remember where.

Cheers

Dan