XDA Developers on MSN

You, too, can build this $15 ESP32 internet radio that brings Winamp into the modern era

It's easy to build, too.
Taste The Code on MSN

Oximeter monitor with OLED display using MAX30105 sensor on NodeMCU

In this video, I created a blood oximeter by using the MAX30105 particle sensor to figure out the changes in color of passing ...