Thanks. I have sent for five to be made with my last PCB order. I have this io chip on an stm8 board I made a while back for something and they work quite well. I need to get the relays or make an adaptor-bodge for others I have already.
I wish I had bought more of the IO chips when I bought the first five because now I want more and they are not that easy to find unless I want to pay a premium and hope they are not fake from the usual low-cost sources. So I think I will be rotating the five chips between different projects thanks to the sockets on the board.
yeah I was just starting to pack everything up for the big move and it took this long to feel settled again. I just recently ordered more parts from Mouser including more of those ATtinys and they were scarce but I managed to get a few scraps. All the ones I would’ve preferred were not available because they were basically close to the same price but might have double the memory so of course those are the ones everyone took first.
A word of warning, if you drive 2A through the contract it may not work reliably at very low current after. When switching on very low currents the contracts need very good wetting to do this. This ability to achieve good wetting will be removed with the first current spike on the contracts. So if you want to switch audio don't switch power with the relay before hand.
check out the SIP-1A05 reed relays if you haven't yet. great for audio. You can't hear them click unless you put your ear up to it and then it's very subtle.