Testing a single board for functionality.

[tomfavell]

I am very interested in building your clock design, but I want to take a cautious approach (don't want to end up with 24 clocks I cant use!). If one were to build a single board as a master, would it be possible to test all the functionality (albeit limited to the last vertical strip of clocks)? Many thanks Tom

[whosmatt]

The master code makes no use of any i2c reads, so it is fully unaware of how many slaves are connected. If you choose one board, you should be able to freely test all columns by changing the address on the DIP switch and power cycling the board.

[tomfavell]

        Thank you MattI have one board working well as you described thanks.I did find that both hands have to be down at 6 o’clock before power up. Otherwise looking good and waiting for parts to build the other 7 boards.I’m thinking of back illuminating the panel as well.Do you know if anyone else has built your design?Tom.    ---- On Wed, 20 Nov 2024 17:22:58 +0000  ***@***.******@***.***> wrote ----  

The master code makes no use of any i2c reads, so it is fully unaware of how many slaves are connected. If you choose one board, you should be able to freely test all columns by changing the address on the DIP switch and power cycling the board.

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[whosmatt]

This is not my design, I am just building something based on this. I may fork this in the future and make some additions, such as a home position button so you dont need to re initialize all the hands when powering it up. I will share the step files for my clockface design on github when I am done designing it.