nprofile1qy2hwumn8ghj7un9d3shjtnyd968gmewwp6kyqpq5s38rs0v6vn6l0ztqlw5xpxmwwlwqflta6cdk7c5u6lax27qkxcq2l2m6h (nprofile…2m6h) With 0.5mm wide traces, I wasn't worried about uneven etching, so I only looked at the PCB when it was nearly finished.
The reason the project didn't work yesterday is that I left the central chip at home -_-