A few weeks ago, I built the through-hole version of the Tapecart based on an ATtiny44. The original and probably the most wide spread variant of the Tapecart is much smaller though. It is built from surface mount components and it is based on the much harder to get 32-bit AT SAM D09 controller.
I wanted some of those Tapecarts in my collection so I had “a few” boards made, ordered the components including a matching case and waited for everything to arrive. Soldering the SMD version is not hard, the smallest components have a 0805 footprint. Continue reading