Remote Control Bot
Wheelie016
Posts: 11
Hi All,
I am trying to build a functioning remote control bot; so far that functioning part isn't working so great. I'm using the Basic Stamp 2, two Xbee Wireless radio's(one connected to my computer), and a Pololu Serial Servo Controller. The goal, at least at first, was to have it move in the direction corresponding to the WAS & D keys on my keyboard, which would be sent through a terminal program, and to the receiving Xbee. Then the BS2 would send the appropriate serial data to the servo controller causing the two continuous rotation servo's to spin.
When I first built it, it worked, and then every time I powered it down, it would sometimes work, and as of now, it doesn't work at all. I thought maybe the battery had gotten to low on the Stamp and changed it, but it did nothing. I made sure it was sending serial data by having it send a message to a serial LCD and that acts. But the servo controller doesn't respond. There is a green LED indicator for incoming serial data on it that is SUPPOSED to respond, but it does nothing; it did, but now I got nothing.
I skipped the Xbee completely by using a hardware DUBUG command and still the same result.
I wanted to make sure there wasn't something wrong with something I couldn't see before assuming it is the controller and finding a replacement. Thanks in advance, and my code will be posted below.
I am trying to build a functioning remote control bot; so far that functioning part isn't working so great. I'm using the Basic Stamp 2, two Xbee Wireless radio's(one connected to my computer), and a Pololu Serial Servo Controller. The goal, at least at first, was to have it move in the direction corresponding to the WAS & D keys on my keyboard, which would be sent through a terminal program, and to the receiving Xbee. Then the BS2 would send the appropriate serial data to the servo controller causing the two continuous rotation servo's to spin.
When I first built it, it worked, and then every time I powered it down, it would sometimes work, and as of now, it doesn't work at all. I thought maybe the battery had gotten to low on the Stamp and changed it, but it did nothing. I made sure it was sending serial data by having it send a message to a serial LCD and that acts. But the servo controller doesn't respond. There is a green LED indicator for incoming serial data on it that is SUPPOSED to respond, but it does nothing; it did, but now I got nothing.
I skipped the Xbee completely by using a hardware DUBUG command and still the same result.
I wanted to make sure there wasn't something wrong with something I couldn't see before assuming it is the controller and finding a replacement. Thanks in advance, and my code will be posted below.
' {$STAMP BS2}
' {$PBASIC 2.5}
'Remote Control Bot v1
Direction VAR Word
ServoCtrl CON 0
R_ServoP CON 1
L_ServoP CON 5
Setup:
SEROUT 14, 84, [22,12]
PAUSE 5
Main:
SERIN 12, 84, [direction]
SEROUT 14, 84, [direction]
IF direction = "w" THEN
SEROUT 0, 84, [$80,$01,$04,R_ServoP,20,50]
SEROUT 0, 84, [$80,$01,$04,L_ServoP,24,50]
SEROUT 14, 84, [12,"Moving Forward"]
GOTO Main
ELSEIF direction = "a" THEN
SEROUT 0, 84, [$80,$01,$04,R_ServoP,21,50]
SEROUT 0, 84, [$80,$01,$04,L_ServoP,22,50]
SEROUT 14, 84, [12,"Turning Left"]
GOTO Main
ELSEIF direction = "s" THEN
SEROUT 0, 84, [$80,$01,$04,R_ServoP,24,50]
SEROUT 0, 84, [$80,$01,$04,L_ServoP,20,50]
SEROUT 14, 84,[12,"Moving Backwards"]
GOTO Main
ELSEIF direction = "d" THEN
SEROUT 0, 84, [$80,$01,$04,R_ServoP,22,50]
SEROUT 0, 84, [$80,$01,$04,L_ServoP,23,50]
SEROUT 14, 84,[12,"Turning Right"]
GOTO Main
ELSE
SEROUT 14, 84, [12,"[Invalid Character]"]
PAUSE 5
ENDIF
GOTO Main
Comments
If the servo controller has a jumper controlled Baud setting, you might try switching to a lower Baud (like 2400) to see if that makes a difference