Scale adaptor no longer seen on bluetooth

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Is there any other info you can provide? It looks like the power is on (green LED is lit). Is Blue LED blinking?
What happens when you power cycle the adapter? Do you see any LED activity when you apply power?
 
Ok. Power cycled several times. Only light that ever lit up was green. Disconnected all scales, took it apart, and powered it up with no enclosure, and blue and red posted on power up. Blue kept blinking. Reassembled it, reconnected it to scales, discovered it via Bluetooth, and now it’s working again. Hoping this isn’t an indication of a recurring issue, but for now it’s back up.
 
Christianstark said:
Ok. Power cycled several times. Only light that ever lit up was green. Disconnected all scales, took it apart, and powered it up with no enclosure, and blue and red posted on power up. Blue kept blinking. Reassembled it, reconnected it to scales, discovered it via Bluetooth, and now it’s working again. Hoping this isn’t an indication of a recurring issue, but for now it’s back up.
Click to expand...
Are you leaving the board powered up 24/7, or do you unplug it when done?
 
I guess, for more context:
I've heard of this happening one other time after a power cycle. Same symptoms and same fix. I think this is caused by the power backup circuit. Once the chip halts (after power is cut and the state is saved), it consumes virtually no power, so the 3.3V rail can take a while to drain below 2.6V (which will cause hard reset). If it's powered back right around 2.6V, the volatile memory can be partially gone, but the core hasn't done a reset and tries to boot back up with bad binary in memory.
This is just my hypothesis, though. I wasn't able to reproduce this even once last time it happened (to another customer). It's been more than a month, and he hasn't gotten back to me, so I'm assuming the board is working.

Really, the best approach is to leave the unit powered 24/7. When BT is disconnected, power draw is in on the order of 10mA...

Regards
Yuriy
 
ycroosh said:
I guess, for more context:
I've heard of this happening one other time after a power cycle. Same symptoms and same fix. I think this is caused by the power backup circuit. Once the chip halts (after power is cut and the state is saved), it consumes virtually no power, so the 3.3V rail can take a while to drain below 2.6V (which will cause hard reset). If it's powered back right around 2.6V, the volatile memory can be partially gone, but the core hasn't done a reset and tries to boot back up with bad binary in memory.
This is just my hypothesis, though. I wasn't able to reproduce this even once last time it happened (to another customer). It's been more than a month, and he hasn't gotten back to me, so I'm assuming the board is working.

Really, the best approach is to leave the unit powered 24/7. When BT is disconnected, power draw is in on the order of 10mA...

Regards
Yuriy
Click to expand...
I had been leaving it on. Atlanta where I live gets storms, and my 60+ year old neighborhood gets power cycles due to storms. The power went off and on several times a few days ago. First few were about 5 seconds off on off on, and then it went down for 5 minutes or so. This is the first I’ve used it since.Today I put it on switched power when I got it working again. I’ll run some permanent power eventually. I had it running 24/7 on a power strip that also has USB ports on it.
 
I have the opposite problem, the tablet got disconnected from the charger and ran the battery down to 0. It now connects fine to the Touch DRO but does not detect the scales.
 
John_Dennis said:
I have the opposite problem, the tablet got disconnected from the charger and ran the battery down to 0. It now connects fine to the Touch DRO but does not detect the scales.
Click to expand...
Can you see any flashing blue light activity on the Touch DRO?
 
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