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Woodstock Low Power
03-06-2018, 06:36 PM (This post was last modified: 03-06-2018 06:38 PM by Maximilian Hohmann.)
Post: #105
RE: Woodstock Low Power
Hello Bernhard,

(03-05-2018 01:12 PM)PANAMATIK Wrote:  Can you measure the current drain in sleep mode? It should be around 100 uA. I have feedback from other LP owners, which report, that the battery is working now for weeks. But leaving the ACT chip drains 4 mA current. It has to be removed or its power lines cut. This was not mentioned in the manual, because I didn't know it.

I will make the measurement one of these days. But I have a feeling that the current in sleep mode is not the problem. I have removed all components from the PCB some time ago. There are really only the traces left. Whenever I turn on the calculator I check the voltage display ("g divide") and it consistently shows something like 2,6V. For many days in a row. But sometimes I find it with the batteries totally discharged, way below 1V. Could that be the buck voltage converter that does not go into standby mode when it is supposed to? Maybe a pullup (or pulldown?) resistor on it's "enable" pin would solve the problem? But I don't know what this would do to your board.

Regards,
Max

NB: I must be the only living person who has yet to discover the secret function :-) (but then in my professional environment I have learnt not to play around with delicate electronics because that might end badly - like flying into a mountain or landing a mile short of the runway at night...)
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Woodstock Low Power - PANAMATIK - 07-25-2017, 11:54 PM
RE: Woodstock Low Power - toml_12953 - 07-26-2017, 02:16 AM
RE: Woodstock Low Power - PANAMATIK - 07-26-2017, 06:40 AM
RE: Woodstock Low Power - Paul Dale - 07-26-2017, 11:33 AM
RE: Woodstock Low Power - PANAMATIK - 07-26-2017, 12:02 PM
RE: Woodstock Low Power - BobVA - 07-26-2017, 04:00 AM
RE: Woodstock Low Power - PANAMATIK - 07-26-2017, 07:24 AM
RE: Woodstock Low Power - PANAMATIK - 07-26-2017, 02:01 PM
RE: Woodstock Low Power - PANAMATIK - 07-26-2017, 05:46 PM
RE: Woodstock Low Power - BobVA - 07-26-2017, 05:14 PM
RE: Woodstock Low Power - PANAMATIK - 07-26-2017, 05:52 PM
RE: Woodstock Low Power - PANAMATIK - 07-28-2017, 05:51 PM
RE: Woodstock Low Power - everettr - 07-28-2017, 10:03 PM
RE: Woodstock Low Power - PANAMATIK - 07-29-2017, 06:12 AM
RE: Woodstock Low Power - PANAMATIK - 08-15-2017, 06:44 AM
RE: Woodstock Low Power - Paul Dale - 08-15-2017, 07:01 AM
RE: Woodstock Low Power - jjohnson873 - 08-15-2017, 03:03 PM
RE: Woodstock Low Power - PANAMATIK - 08-15-2017, 08:11 PM
RE: Woodstock Low Power - PANAMATIK - 10-15-2017, 07:52 PM
RE: Woodstock Low Power - BobVA - 10-15-2017, 09:38 PM
RE: Woodstock Low Power - PANAMATIK - 10-15-2017, 10:27 PM
RE: Woodstock Low Power - Mark Hardman - 10-16-2017, 01:15 AM
RE: Woodstock Low Power - PANAMATIK - 10-16-2017, 06:46 AM
RE: Woodstock Low Power - PANAMATIK - 10-17-2017, 07:39 PM
RE: Woodstock Low Power - Paul Dale - 10-17-2017, 11:23 PM
RE: Woodstock Low Power - Harald - 10-18-2017, 07:44 AM
RE: Woodstock Low Power - PANAMATIK - 10-18-2017, 05:20 PM
RE: Woodstock Low Power - PANAMATIK - 10-31-2017, 10:32 AM
RE: Woodstock Low Power - Harald - 11-01-2017, 10:05 AM
RE: Woodstock Low Power - hewlpac - 10-31-2017, 02:43 PM
RE: Woodstock Low Power - BobVA - 10-31-2017, 03:51 PM
RE: Woodstock Low Power - Craig Bladow - 10-31-2017, 04:21 PM
RE: Woodstock Low Power - PANAMATIK - 10-31-2017, 07:09 PM
RE: Woodstock Low Power - PANAMATIK - 10-31-2017, 07:10 PM
RE: Woodstock Low Power - Sadsilence - 11-01-2017, 06:28 PM
RE: Woodstock Low Power - Hans-Peter - 10-31-2017, 09:32 PM
RE: Woodstock Low Power - Paul Dale - 11-01-2017, 09:02 AM
RE: Woodstock Low Power - PANAMATIK - 11-05-2017, 04:57 PM
RE: Woodstock Low Power - Hans-Peter - 11-05-2017, 05:45 PM
RE: Woodstock Low Power - PANAMATIK - 11-05-2017, 07:38 PM
RE: Woodstock Low Power - markhen - 11-09-2017, 05:38 PM
RE: Woodstock Low Power - PANAMATIK - 11-10-2017, 10:55 PM
RE: Woodstock Low Power - PANAMATIK - 11-20-2017, 10:45 AM
RE: Woodstock Low Power - rprosperi - 11-20-2017, 01:59 PM
RE: Woodstock Low Power - BobVA - 11-21-2017, 02:13 AM
RE: Woodstock Low Power - PANAMATIK - 11-21-2017, 08:39 AM
RE: Woodstock Low Power - Benoit Maag - 11-23-2017, 05:49 PM
RE: Woodstock Low Power - rprosperi - 11-25-2017, 02:50 PM
RE: Woodstock Low Power - PANAMATIK - 11-25-2017, 09:24 PM
RE: Woodstock Low Power - PANAMATIK - 11-27-2017, 06:09 PM
RE: Woodstock Low Power - PANAMATIK - 11-28-2017, 10:08 PM
RE: Woodstock Low Power - BobVA - 11-29-2017, 12:46 AM
RE: Woodstock Low Power - teenix - 11-29-2017, 04:03 AM
RE: Woodstock Low Power - PANAMATIK - 11-29-2017, 07:01 AM
RE: Woodstock Low Power - PANAMATIK - 12-01-2017, 06:56 PM
RE: Woodstock Low Power - PANAMATIK - 12-03-2017, 05:27 PM
RE: Woodstock Low Power - hewlpac - 12-03-2017, 05:36 PM
RE: Woodstock Low Power - BobVA - 12-03-2017, 08:30 PM
RE: Woodstock Low Power - PANAMATIK - 12-08-2017, 12:44 PM
RE: Woodstock Low Power - Didier Lachieze - 12-08-2017, 12:57 PM
RE: Woodstock Low Power - PANAMATIK - 12-08-2017, 03:45 PM
RE: Woodstock Low Power - BobVA - 12-08-2017, 04:25 PM
RE: Woodstock Low Power - hewlpac - 12-19-2017, 01:34 AM
RE: Woodstock Low Power - PANAMATIK - 01-06-2018, 07:50 PM
RE: Woodstock Low Power - Dieter - 01-07-2018, 09:41 AM
RE: Woodstock Low Power - rprosperi - 01-08-2018, 09:28 PM
RE: Woodstock Low Power - Harald - 01-06-2018, 08:48 PM
RE: Woodstock Low Power - Paul Dale - 01-07-2018, 06:54 AM
RE: Woodstock Low Power - badaze - 01-07-2018, 12:27 PM
RE: Woodstock Low Power - Dieter - 01-08-2018, 10:25 AM
RE: Woodstock Low Power - badaze - 01-08-2018, 06:46 PM
RE: Woodstock Low Power - hewlpac - 01-08-2018, 07:32 PM
RE: Woodstock Low Power - Harald - 01-09-2018, 09:39 AM
RE: Woodstock Low Power - PANAMATIK - 01-09-2018, 10:00 PM
RE: Woodstock Low Power - Harald - 01-09-2018, 10:39 PM
RE: Woodstock Low Power - PANAMATIK - 01-09-2018, 11:42 PM
RE: Woodstock Low Power - Harald - 01-10-2018, 09:17 AM
RE: Woodstock Low Power - PANAMATIK - 01-10-2018, 09:42 AM
RE: Woodstock Low Power - PANAMATIK - 02-04-2018, 07:26 AM
RE: Woodstock Low Power - PANAMATIK - 02-04-2018, 10:52 AM
RE: Woodstock Low Power - PANAMATIK - 02-04-2018, 04:52 PM
RE: Woodstock Low Power - PANAMATIK - 02-04-2018, 06:01 PM
RE: Woodstock Low Power - PANAMATIK - 02-05-2018, 06:47 PM
RE: Woodstock Low Power - PANAMATIK - 02-12-2018, 05:52 AM
RE: Woodstock Low Power - PANAMATIK - 02-14-2018, 10:09 AM
RE: Woodstock Low Power - BobVA - 02-14-2018, 05:00 PM
RE: Woodstock Low Power - Paul Dale - 02-14-2018, 11:12 AM
RE: Woodstock Low Power - hewlpac - 02-14-2018, 04:29 PM
RE: Woodstock Low Power - Harald - 03-05-2018, 09:46 AM
RE: Woodstock Low Power - PANAMATIK - 03-05-2018, 01:12 PM
RE: Woodstock Low Power - Maximilian Hohmann - 03-06-2018 06:36 PM
RE: Woodstock Low Power - PANAMATIK - 03-12-2018, 10:19 AM
RE: Woodstock Low Power - jjohnson873 - 03-13-2018, 01:00 AM
RE: Woodstock Low Power - jjohnson873 - 03-07-2018, 02:38 PM
RE: Woodstock Low Power - PANAMATIK - 03-25-2018, 12:55 PM
RE: Woodstock Low Power - PANAMATIK - 03-28-2018, 09:17 PM
RE: Woodstock Low Power - PANAMATIK - 05-09-2018, 12:30 PM
RE: Woodstock Low Power - Harald - 05-11-2018, 10:31 PM



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