I’m waiting on the dev board they sell on waveshare. Definitely affordable under $20. For this type of project the esp32 seems like the better choice than the

I’m waiting on the dev board they sell on waveshare. Definitely affordable under $20. For this type of project the esp32 seems like the better choice than the pi zero. There’s also the RP2040 if you want work in the pi ecosystem. Arduino and u-blox have those with wifi I think