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ATU 100 0A Chinese version

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I recently bought a Chinese ATU100 0A and accidentally deleted its firmware, I tested it with some ATU 100EXT firmware I chose from DD7NC -ATU100 EXT on Github, but the display didn't work properly. Does anyone have any suggestions or even a copy of this firmware?
 

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It could just be a different I2C address for the display. If you can remove the display, and have an arduino lying around, then try attaching the display to the Arduino and run the I2C sniifer program

On 02/08/2024 04:19, MBDEMELLO via groups.io wrote:

I recently bought a Chinese ATU100 0A and accidentally deleted its firmware, I tested it with some ATU 100EXT firmware I chose from DD7NC -ATU100 EXT on Github, but the display didn't work properly. Does anyone have any suggestions or even a copy of this firmware?
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Mike, thanks for your reply.
As is possible to see in the second display picture attached, the 16F1938 can communicate and? write on it, then the address is correct,? but there are? misplaced characters? and garbage on the display, in the bottom line.
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hi, you have to correct the vertical offset. It¡®s a cell content, you can change before updating. see manual¡­
73, es good
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Thanks, Immo! ? I think you've hit the target, I didn't know there was a line adjustment parameter. ? I'll give it a try and let you know the result.
 

hi,
73, es good luck?
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Hi!?
Excellent!? Your suggestion fixes the error.? I reduced the vertical offset and the display works fine now! Thanks for your help!??
Thank you for the EEPROM PDF doc too.?
?
73 and good luck
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You're welcome!
Cheers!

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