Clock loses I2C connection with ESP8266

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1 year 8 months ago #7585 by Stackerlee
With clock firmware 46 and WiFi module v1.0.4 I have noticed that the connection between the two is lost after a couple of days. Power off and on reconnects it.
I can connect to the module and see the web GUI but can't make any changes.
The line "Found I2C slave at 104" is gone.
The clock then runs of the 16 MHz crystal.
Any recent code changes that may cause this?

I really like the addition of showing the IP adress of the module. Very helpful.

Regards, David

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1 year 8 months ago #7589 by Ian
Hi David

there have been no changes to the I2C connumication in software. Does it happen with a particular module or clock (I think you have more than one)?

How long are the wires between the clock and the WiFi module?

Rgds

Ian

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1 year 8 months ago #7593 by Stackerlee
Hello
I have the "classic" version.
The module is stacked directly on the bord via the level shifter with no wires.
Nothing is changed except the firmware (Atmega and ESP8266).
This never happened with previous versions so I thought it has to do with firmware.

Regards, David

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1 year 7 months ago #7596 by Ian
I don't have an immediate answer for this.

Is it relaibly lost? I mean, if you leave it 2 days and 2 hours it's OK, but after 2 days and 3 hours it's gone?

If it persists, I'll send you a new WiFi module, so we can understand if the problem is in the msin board or the ESP.

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1 year 7 months ago #7598 by Stackerlee
I'll keep an eye on it.
Don't know yet if it's gone after a specific time, a little hard to tell, can't log it.
It's not very obvious when it happens, only after some time the clock starts to drift.
Last time it was between 1 and 17 hours since start. (I checked the uptime but don't know when it got disconnected).

I could try "downgrading" the firmware for the board and module, one at a time to see if it persists.
I'll first try reverting from feb 28 to feb 21 (main board).

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1 year 7 months ago #7610 by Ian
OK; thanks for that. My best guess is that there's a problem on the interface board. If the blue LED keeps flashing and the clock keeps working, it can only really be the I2C between them...

Why don't I send you a new one to see if that makes the problem go away?

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