Thursday, 3 April 2025

Build up the first board. What could possibly go wrong?

Here it is. Order placed with JLCPCB on Tuesday, arrived Monday a week later. Including both manufacture and shipping from China. Can't complain, although the boards (£2) cost almost 10 times as much as the carriage (£18).




I can't see anything wrong at this stage (yet?).



Hmm, the relay doesn't look 100% right.


I can sort of jiggle the pins a bit but I left this to The Stupid Fat Bloke, who got the coil and contacts swapped over. Besides, it's actually a 5V relay and the output of the Pi is driven by a 3.3V rail. We will fix that later....


There we go. It certainly looks all right. 




But now let's try it and see if it actually works...

Build up the first board. What could possibly go wrong?

Here it is. Order placed with JLCPCB on Tuesday, arrived Monday a week later. Including both manufacture and shipping from China. Can't ...