When I needed to extend the range of some ESP8266-based sensors, cantennas were right at the top of my list of things to try. It was easy enough to build one, attach it to a Wemos Mini D1 Pro ...
Instead, here we’re looking at the real-life performance of three different modules: the WeMos D1 mini for the ESP8266 ... ADC chip and connect it via I2C, or you tack on a shift register ...
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