What brand of servo tester is everyone using?

[EVTodd]

I'm curious as to which brands of servo testers everyone on here is currently using. I have a cheap-o HXT:

http://www.hobbycity.com/hobbycity/store/uh_viewItem.asp?idProduct=8373

It works fine but I would like to find one that uses a 5k or 10k potentiometer. The one I have measures closer to 20k (one of the reviews on that site says it's a 12k but I'm not seeing those numbers). I ended up using a 50k pot on the throttle I made since I can't find a 20k pot locally. It works fine too but I would like to have a bit smoother progression to full throttle.

 

[dontsendbubbamail]

Astro

Bubba

 

[deecanio]

Hi EVTodd,

quite a lot of us are using Richards throttle box, has adjustable current limiting and makes conection soooo simple for any throttle, can vouch that it works a dream, thread here..........

http://endless-sphere.com/forums/viewtopic.php?f=28&t=8160

cheers,

D

 

[dontsendbubbamail]

This is a question for the more electronically gifted. Could an audio taper pot help with making a throttle more sensitive on one end and less on the other? I guess the ultimate way of getting a desired throttle response would be to create your own throttle using a micro controller. With the esc and throttle being digital there are limitation on how much of a step change can be detected. I would think that the glitch detection software on the esc would also affect how fast a step change could be detected.

Bubba

 

[nieles]

i use an turnigy servo tester
http://www.hobbycity.com/hobbycity/store/uh_viewItem.asp?idProduct=6554

and i modded it with the insturctions from oofnik to use it with standard bike throttles
http://endless-sphere.com/forums/viewtopic.php?f=2&t=9413

it is a bit hard to solder on the atmega48v, but once it`s done it works perfect

 

[gwhy!]

This is a question for the more electronically gifted. Could an audio taper pot help with making a throttle more sensitive on one end and less on the other? I guess the ultimate way of getting a desired throttle response would be to create your own throttle using a micro controller. With the esc and throttle being digital there are limitation on how much of a step change can be detected. I would think that the glitch detection software on the esc would also affect how fast a step change could be detected.

Bubba

A log pot would make it change the overall response over the range of the pot. Yes you could make a digital throttle but to be honest I dont think its worth the effort , fast or slow throttle is all the requirements I have ever used on a moto but a log response throttle would be very usefull ( slow for the first quarter turn but faster in the 2nd quarter ) well.. good for trials riding anyway..

 

[GGoodrum]

I haven't tried playing with the settings yet, but I'm pretty sure you can adjust the throttle sensitivity in the Phoenix HV controllers. It would have the same effect as a logarithmic pot.

BTW, Richard's board doesn't just do the throttle conversion, for resistive types or hall-based, and/or current limiting. It also has the equivalent of a SHV BEC built-in, that doesn't require wrapping in foil ( ), and it has four large caps to help protect the ESC from ebike-type loads. It also has an "ebrake" input compatible with our BMS and LVC-only boards.

-- Gary

 

[gwhy!]

BTW, Richard's board doesn't just do the throttle conversion, for resistive types or hall-based, and/or current limiting. It also has the equivalent of a SHV BEC built-in, that doesn't require wrapping in foil ( ), and it has four large caps to help protect the ESC from ebike-type loads. It also has an "ebrake" input compatible with our BMS and LVC-only boards.

-- Gary

I must say Richards ( plug'n'play ) solution is very good indeed . I hope he don't mind but I re-worked the layout ( made it modular and also changed some values but the original design by Richard is spot on for normal commuting/safety stuff ).. Nice one Thank you very much Richard I hope one day I can return the favour. Beats re-inventing the wheel.