BS2 burning out?

shmow

Hello All,
I have a stamp in class board with the four servo outputs.
I'm running 3 servos - the program works as planned.
However, when I put one of the servos under load - drives a little car, the servo stops running (will pulse when I re-power the board).
I believe I burned out the BS2.

But, now the BS2 won't be recognized when I try to re-program it, and when the I touched one of the small chips on it's board (maybe the interpreter chip) it was too hot to touch.
How did I manage to lose the BS2? Isn't the BS2 isolated from the servo?
Any advice would be appreciated.

Regards,
Shmow

dandreae

It sounds like the BASIC Stamp is damaged.· What type of power supply are you using?· What other circuits are connected to the board?· Send me an e-mail regarding your damaged stamp and I'll see what I can do to help out.· My e-mail address is dandreae@parallax.com



Kind regards,

Dave



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Dave Andreae

Parallax Tech Support·

shmow

Hello Dave,
Thanks for the reply.
I have the power supply I purchased from Parallax .
The other circuits or loads are an EMIC and an IR receiver.
I’m not sure I the BS2 became damaged.
Everything worked prior the putting the servo under load.
What do you think?
Regards,
John-Mark Lyons

Franklin

Depends on where you were getting the power for the servo and what voltage you were using on the BS.

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- Stephen

dandreae

If you were using the servo socket up in X4 or X5, which is I/O pins 12,13,14, and 15, you'll want to make sure that the other components are not sharing the same I/O pin as the servo.

Dave

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Dave Andreae

Parallax Tech Support·

shmow

Dave,
good point; fortunately, none of those outputs were sharing those pins.
Shmow