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Topic: SENSE POWER FAIL and SAVE EEPROM (Read 1 time) previous topic - next topic

lastchancename

Aug 15, 2018, 10:44 pm Last Edit: Aug 15, 2018, 10:45 pm by lastchancename
This works vey well - TWO supply rails shown - you only need the 5V
Sense the voltage drop BEFORE the regulator(s)

Poll the analog input regularly - I use this and have time to save about 1.5K to EEPROM
Quite a few in the field.
Experienced responders have a nose for laziness, (they were beginners once)... expecting the poster to contribute to the learning experience.

srnet

#1
Aug 21, 2018, 08:38 am Last Edit: Aug 21, 2018, 08:39 am by srnet
Whats the reason for the capacitors on the regulator inputs and outputs being as low as 100pF ?

100nF would be more normal.
$50SAT is now Silent (but probably still running)
http://www.50dollarsat.info/
http://www.loratracker.uk/

lastchancename

GOOD SPOT...
They are in fact 100nF - a typo that has existed for several years !!!

Thanks
Experienced responders have a nose for laziness, (they were beginners once)... expecting the poster to contribute to the learning experience.

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