collecting pin states to send across xbee.

RMCanaway · 2019-03-24 17:54

Is it possible to check the pin states (Like a button on each one) from pins 0 to 7, Store it in a temporary value to send across an xbee?

tomcrawford · 2019-03-24 18:26

something like:

VAR      byte    symbol

    symbol := ina[7..0]

pointer to a book

RMCanaway · 2019-03-25 02:43

tomcrawford wrote: »
something like:
VAR      byte    symbol

    symbol := ina[7..0]
pointer to a book

How can I read the values on the xbee receive side?

macrobeak · 2019-03-25 04:15

Download and study the excellent tutorial by Martin Hebel "Getting started with Xbee RF Modules".

RMCanaway · 2019-03-26 12:45

Here's the code i've been working with. Let me know what i can improve on to make it function properly.

tomcrawford · 2019-03-26 15:28

Does it work? If not, what are the symptoms?

RMCanaway · 2019-03-26 16:51

The board I've been designing is a new controller for robotics at my school. it has 8 buttons (0..7 pins) and joysticks (8..11pins) the joysticks work perfectly without any delay. However I have not found a way to send the button data proficiently. I need a way to send the buttons values in packets like earlier mentioned, and to receive them and read each individual button on the receiver.

tomcrawford · 2019-03-26 17:26

Looks like in TANKDRIVECODE you read the buttons only once at the top and send the same value over and over.

RMCanaway · 2019-03-26 17:51

I had just changed that earlier, i had it in the repeat. It still was refusing to work. I'm just getting into .spin, however i have prior experience with LUA, C, and Java

iseries · 2019-03-26 18:57

I did a similar project where it emulated a joy stick or RC transmitter.

joystick rc transmitter using c
I prefer C over SPIN.

Mike

tomcrawford · 2019-03-26 20:37

Well, if the pst.bin is displaying what you expect, then the buttons must be wired correctly. Just make sure both end of the XBee link agree on what a packet looks like...

Edit: My inclination would be to gather all the variables on the tx side and then send them at once. Isolate the gathering from the transmission, so to speak. And I would probably send a checksum, as well. Similarly on the rx side. EndEdit

RMCanaway · 2019-04-25 13:25

On my Robot Controller, I have the button data being sent in 8 bit data packets. I just need to know what button is being pressed on the receive side .

Thanks,
Ryan Canaway

collecting pin states to send across xbee.

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