Yup. Just had 2 of mine stop responding… I guess this should tell me to never buy a seeed product again…
For some reason it only responds when I set it to bootloader mode, but what am I supposed to do with that? Nowhere explains this.
This product is aimed to be for beginners to. I don’t have fancy programmers lying around nor do I want to have to program the chip. Hardly an arduino replacement experience.