 Related, what is this? This is a QDPie ESP32. This is a prototype, so I got some backwards text, but the final PCBs are going to be showing up in a couple of days, so I thought I'd get started on the tester. And like the other QDPie ESP32 S2 tester, I'm using a Raspberry Pi. And the reason I'm using a Raspberry Pi is, one, I can run ESP tool from it. And so it's like really easy to program the chip directly, because this is Linux. And the second thing is what I do is, after I've tested all the GPIO, I test the Wi-Fi. And I check the signal strength and the MAC address to make sure it's the right device. And that way I know that the antenna got set on correctly and all the passive components. So this is past test, and this is ready to go.