Woodstock Low Power
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01-09-2018, 10:00 PM
Post: #80
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RE: Woodstock Low Power
(01-09-2018 09:39 AM)Harald Wrote: Edit: It is still only the "divide" key that gets the calculator back out of sleep mode. I guess that means the PIC is dead... "divide" key is meant to wake up. Other keys don't wake up. This is normal to minimize accidentally wake up when carrying the calculator inside the pouch. GPS module needs more current and I observed, that low batteries will reset the circuit when GPS is switched ON. Perhaps you just have to recharge the batteries. Did you measure the /SHDL signal at the Power supply. If it is always high and battery is low this could explain the behavior. Bernhard That's one small step for a man - one giant leap for mankind. |
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