For anyone thinking about trying ESP8266 programming, it's a great way to start. For my one-of projects, I just put a whole D1 mini in and don't worry about trying to optimize it to less components (why bother at $4/board?). Just order at least a handful as shipping is slow.
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I really love the Wemos D1 mini. It fits in a standard breadboard with space for a row of pins on each side. It's only $4 plus shipping from Wemos:
https://www.aliexpress.com/store/product/D1-mini-Mini-NodeMc...
For anyone thinking about trying ESP8266 programming, it's a great way to start. For my one-of projects, I just put a whole D1 mini in and don't worry about trying to optimize it to less components (why bother at $4/board?). Just order at least a handful as shipping is slow.