My client is using a W5100S chip in an existing product, and I wanted to do some development tasks on the lab bench. I thought I had a suitable module. But, the only W5100S chip module I have is built into the RP2040 product. I have a stand-alone module (an Adafruit feather), but it is based on the W5500 chip.
Looking at the website, there are two modules based on the 5100s – the WIZ810Sio and the WIZ810SMJ ( the W5100Sio would work, but it doesn’t have the magnetics or jack ). Trying to visit the Korean webstore results in a 404 access error. The US store has them, but I’d have to wait for shipping from the US. G-Market has one, but it ships from outside Korea and takes two weeks to deliver. Coupang has some different modules, but these seem to all be over a week delivery time. Devicemart supply is via Arrow, and they have no inventory. Digikey also doesn’t have inventory. I can’t tell if the Wiznet Korean store has stock, since the website is offline.
Where can I buy a W5100S-based module (with magnetics and jack) that is stocked within Korea? Any ideas?
