Connecting Parallax Boe Bot with Wireless

David Tan · 2009-01-08 13:08

Just wanna the confirmation from all the expert, if possible for us as the new beginner to set up the wireless connection to control the parallax boe-bot?

Thank You..>^.^<

sylvie369 · 2009-01-08 14:41

Yes, if you carefully follow the wonderfully well-written instructions you'll find here:

http://forums.parallax.com/showthread.php?p=524063

Note that the project described there uses an accelerometer through the wireless connection to control the BoeBot. If you want to use some kind of manual control (for example, typing numbers on a keyboard using DEBUGIN), you'll need to learn a little about how to get that control into the handheld Stamp, but that's a fairly simple process that you can easily learn if you work your way through the "What's a Microcontroller?" book.

SRLM · 2009-01-08 17:07

Here is some code that I wrote to use the 912 MHz transceivers.I like making my own wireless setup because you can add lots of different commands very easily.

'Produced by SRLM Productions.

out PIN 0
in  PIN 1

letter VAR Byte
done   VAR Byte

DEBUG "Commands: ", CR, "8 - Forward", "2 - Backward", CR, "4 - Turn Left", CR, "6 - Turn Right", CR, "q - Play song (use 1-9 above)", CR, "w - beep", CR, "e - countdown", CR

'Send one char at a time
done = 0
DEBUG CR, "You >> "
DO WHILE done = 0
  DEBUGIN STR letter \1
  SEROUT out, 84, [noparse][[/noparse]letter, CR]
LOOP

That was the console (the part to run on you PC and connected stamp). The following is the program that was on the BOE bot. The tilt functions refer to a third servo that I added to tilt a camera.

'App to run the BOE-Bot via remote control witht he 912 mhz reciver

'use keypad nums for the dirrection control. 4 and 6 turn.

motor PIN 12
right PIN 13
in PIN 0
piezo PIN 2
ledA PIN 3
ledB PIN 4
ledC PIN 5
camera PIN 14

counter VAR Byte
letter VAR Byte
frequency VAR Word
tilt VAR Word

tilt = 750


DO

  GOSUB _GetData

  IF(letter = "8") THEN
   GOSUB _Forward
  ELSEIF(letter = "4") THEN
   GOSUB _TurnLeft
  ELSEIF(letter = "2") THEN
   GOSUB _Backward
  ELSEIF(letter = "6") THEN
   GOSUB _TurnRight
  ELSEIF(letter = "5") THEN
    GOSUB _Stop
  ELSEIF(letter = "q") THEN
   GOSUB _PlaySong
  ELSEIF(letter = "w") THEN
   GOSUB _Beep
  ELSEIF(letter = "e") THEN
   GOSUB _CountDown
  ELSEIF(letter = "9") THEN
   GOSUB _TiltUp
  ELSEIF(letter = "3") THEN
   GOSUB _TiltDown
  ELSE
   DEBUG "Not valid dirrection.", CR
  ENDIF
LOOP


_GetData:
  SERIN in, 84, [noparse][[/noparse]letter]
RETURN

_Beep:
  FREQOUT piezo, 750, 3136
RETURN

_Countdown:
  FOR counter = 0 TO 10
    FREQOUT piezo, 150, 3136
    PAUSE 150
  NEXT
  FOR counter = 50 TO 0
    FREQOUT piezo, 100 + counter, 3136
    PAUSE counter*3
  NEXT
  FOR counter = 100 TO 0
    FREQOUT piezo, 20, 40*counter
  NEXT
RETURN


_PlaySong:

  counter = 0
  DO WHILE counter = 0
    GOSUB _GetData
    IF(letter = CR OR letter > 57 OR letter < 48) THEN
      counter = 1
    ELSE
      LOOKUP letter - 48, [noparse][[/noparse]1174, 1318, 1568, 1760, 1975, 2093, 2349, 2637, 3136, 3520, 3951], frequency
      FREQOUT piezo, 250, frequency
    ENDIF
  LOOP
RETURN

_TurnLeft:
  FOR counter = 0 TO 4
    PULSOUT motor, 790
    PULSOUT right, 530
    PAUSE 20
  NEXT
RETURN

_TurnRight:
  FOR counter = 0 TO 4
    PULSOUT motor, 790
    PULSOUT right, 790
    PAUSE 20
  NEXT
RETURN

_Forward:

  FOR counter = 0 TO 20
    PULSOUT motor, 790
    PULSOUT right, 680
    PAUSE 20
  NEXT
RETURN

_Backward:
  FOR counter = 0 TO 20
    PULSOUT motor, 710
    PULSOUT right, 680
    PAUSE 20
  NEXT
RETURN

_Stop:
  FOR counter = 0 TO 4
    PULSOUT motor, 750
    PULSOUT right, 680
  NEXT
RETURN

_TiltUp:
  IF(tilt <= 1000 AND tilt >=500) THEN
    tilt = tilt + 5
  ELSE
    tilt = 1000
  ENDIF
  FOR counter = 0 TO 4
    PULSOUT camera, tilt
    PAUSE 20
  NEXT
RETURN

_TiltDown:
  IF(tilt <= 1000 AND tilt >=500) THEN
    tilt = tilt - 5
  ELSE
   tilt = 500
  ENDIF
  FOR counter = 0 TO 4
    PULSOUT camera, tilt
    PAUSE 20
  NEXT
RETURN

David Tan · 2009-01-09 04:33

Dear SRLM..

Did this involve additional hardware to install in the Parallax Boe-bot?

David Tan · 2009-01-09 05:43

Dear sylvie369...

If possible for us to use the laptop or desktop to control the movement of the Boe-Bot using the wireless?

did this required any extra hardware?

Thank you..

SRLM · 2009-01-09 05:53

The BOE is not capable of wireless communication by itself (no uC is that I know of, they all require external hardware). My program used the 912 MHz transceiver(now discontinued), but the principle is the same for other wireless links. It uses a human at a computer to wirelessly control the robot.

azmax100 · 2009-01-09 06:28

SRLM

Can i use this 433 RF transmitter/receiver with boe bot? [noparse][[/noparse]http://cytron.com.my/listProductCategory.asp?cid=282]

SRLM · 2009-01-09 07:29

Probably. But, they are not very well documented, so you'll probably be on your own with those. However, have you looked at these? They are very similar, and the documentation is complete enough to indicate that all you need to do is serout on one side and serin on the other. Very cool. I've been thinking of getting some for some time, but haven't gotten the need yet.

azmax100 · 2009-01-09 07:54

SRLM

This is the C code for the above said RF. Is it mean anything to you. Looks like it can be use with BS2. How to serout/serin 1200 baud
with BS?

sylvie369 · 2009-01-09 11:54

David Tan said...
Dear sylvie369...

If possible for us to use the laptop or desktop to control the movement of the Boe-Bot using the wireless?

did this required any extra hardware?

Thank you..

You'll need a transmitter on the control unit and a receiver on the Boe-Bot, of course. If the transmitter is on a BS2 connected to a laptop or desktop, you can use Debugin to send commands to that BS2, which then transmits them to the Boe-Bot, which acts on them. You program that just the same way that you do the accelerometer-based controller described in the link I posted.

SRLM · 2009-01-09 16:45

@azmax100

No need to look at the C code. It appears as if you just SEROUT within the specified baud range, and SERIN at the same value at the other side. For the programmer, it appears like a wire (no commands for the module).

David Tan · 2009-01-14 02:18

To:SRLM

Regarding the above statement, i quiet confuss with what u trying to deliver..

can u be more specify..

Thanks you

David Tan · 2009-01-14 02:37

To all the PBasic stamp 2 expert...

Got any new expansion for Parallax Boe-Bot beside the normal use..

Thank You..

SRLM · 2009-01-14 02:39

There are two main resources in a problem like this. The primary one is the Basic Stamp Syntax and Reference Manual, under the section labeled SERIN and under the section labeled SEROUT. The second resource is the RF module datasheet. If I remember right (an don't hold me to this) the RF Modules can transfer serial speeds between 2400 and 9600 bps. The module should work (in certain circumstances) as a drop in replacement for a signal wire, which is very convenient. [noparse]:)[/noparse]

David Tan · 2009-01-18 09:59

I need help for the PING comment...

List of Hardware Involve...?

Thank You..

SRLM · 2009-01-18 16:20

David Tan said...
I need help for the PING comment...List of Hardware Involve...?

I'm not quite sure what you mean, but the PING does not require any external hardware except some wires to connect it.

David Tan · 2009-01-19 05:44

This is what the PIng i means ...

Thank You

Regards
David Tan

Connecting Parallax Boe Bot with Wireless

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