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Hi everyone,
I've recently put together a handyboard kit. The
construction went fine and I was very impressed with
the step by step instructions provided from
handyboard.com. Anyway, the board just stopped working
after just two days of usage. I might have broke
something while messing around with it, mainly I was
just using the regulated +5 output from one of the
input ports. Symptoms: firmware download is ok (using
IC4.0), but as soon as download is finished I get an
error message indicates that IC is unabled to boot and
the LCD displays a dark top row. I know the LCD works.
I replaced every single IC (except 68hc11) including
the hard to remove U3 thats soldered to the board with
no luck. Could the problem be the 68hc11 chip? Has
anyone had a similar problem? Im going bald trying to
figure out what the problem is so any insight is
greatly appreciated.
Sincerely,
Tony Tran
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Message is in Reply To:
 | | analog ports on handyboard?
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| We are trying to use the Analog Ports with the Sharp GP2D12 and a potentiometer and are having difficulty with ports 0 -3. When we write to the ADCTL register to read any ports 0 - 3, it reads the respective high ports. For example, when we want to (...) (23 years ago, 27-Feb-02, to lugnet.robotics.handyboard)
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