RoboSavvy Forum

About the RX-7 SYNTH IPD receiver 40MHz

2007-11-13T01:47:20+01:00

One other thing i-bot.

I'm not very well trained in the electronics field.

Can you somewhat show a programming example and an explination on the Byte and the +/- 15 thing and all that?

I don't really know what these things mean.

Like, positive, negative 15 or something?

Please help!

Statistics: Posted by kevdemed — Tue Nov 13, 2007 1:47 am

About the RX-7 SYNTH IPD receiver 40MHz

2007-11-13T01:40:49+01:00

So the controller comes with a disc with moves already programed for the controller?

How would I be able to find out how much it costs in U.S. dollars?

Does it also come with instructions on how to install?

Thanks!

Statistics: Posted by kevdemed — Tue Nov 13, 2007 1:40 am

About the RX-7 SYNTH IPD receiver 40MHz

2007-11-13T00:26:13+01:00

This is all I have seen:
http://www.rt-net.jp/index.php?main_pag ... cts_id=381

I did my own based on a 16F688 interface, it also connects to the ETX/ERX like the Hitec one. I normally use the controller in Dual Shock 2 mode. I read the 16 buttons and encode into a single byte for use in the "ON" instruction. The joysticks go to a map table, so I can get either 10 to 190 output, +/- 15 or any other. The button pressure I map to 0 to 15, and use this to control the speed parameter. The PS2 controller is quite easy to program and put into DS2 or any other mode. I did have to make a keep alive loop to read the controller, to stop it dropping out of the locked mode.

I may add another output mode to give 2 outputs based on a both axis of a joystick, which I could add or subtract to the left and right side motions, rather like you would need to drive tank tracks. I tend to do the translation code on the PIC since it is faster than RoboBasic.

This PS2 controller is at least 20 times faster than the IR controller or an RC receiver and is proving very reliable.

Also both the IR controller and the RC receiver disable interrupts while they are being read, and both are very slow. This makes the jerky motion and poor response. The PS2 does not have this problem since it uses the ERX/ETX.

Statistics: Posted by i-Bot — Tue Nov 13, 2007 12:26 am

About the RX-7 SYNTH IPD receiver 40MHz

2007-11-12T23:15:11+01:00

Do you have a picture or any info on hitec's ps2 style controller ?

Statistics: Posted by chitownrobo — Mon Nov 12, 2007 11:15 pm

About the RX-7 SYNTH IPD receiver 40MHz

2007-11-12T13:03:48+01:00

I guess the RX-7 would interface using the RCIN instruction like other RC receivers.

I had little success using an RC receiver on the RN for making dynamic changes. The reading of the inputs takes a long time and is done for each input seperate. Interrupts are disabled, so overall operation became jerky. If you get it to work, please let us all know.

That is why I went for the PS2 wireless. I don't know when Hitec will release their PS2 controller outside Japan.

Statistics: Posted by i-Bot — Mon Nov 12, 2007 1:03 pm

About the RX-7 SYNTH IPD receiver 40MHz

2007-11-12T09:25:12+01:00

Can I use the RX-7 SYNTH IPD receiver 40MHz in order to control it more like this?

http://www.youtube.com/watch?v=H-1mmPpLPGw

And if so, how do you program it?

Also.

Start writing in the chat room people!

I'm like the only person who ever wants to chat.

Anyway, thanks for the advice!

Kevdemed

Statistics: Posted by kevdemed — Mon Nov 12, 2007 9:25 am