There's an ARM Cortex-M4 with Bluetooth inside a Covid test kit
As a European: why are there chips in this? I just broke open mine and it looks like this: <a href="https://imgur.com/a/muz7FIy" rel="nofollow">https://imgur.com/a/muz7FIy</a><p>I bought 50 of these 2 weeks ago. Were 3-4 euro a piece.