To make the prototype, I built my own cnc machine. 1U means size 10cm x 10cm. With the chip I used, in the project log before, I only checked 8 nodes, it still has room for 32 nodes so I changed the schematic of the supervisor, also changed the node communication controller chip and I2C isolation. It took quite a bit of my time, as I had to check the datasheets and figure out how to wire them up.
In this video, the functional area is divided into several parts and created with a cnc machine for testing.
I hope I finish the first full test board in the next project log.
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