Connect your microcontroller to the internet by adding ESP8266 WiFi module!
by Jefferson Paredes
An easily constructed USB-powered pulse oximeter device that can be built for around $25 and features an OLED display.
Project tutorial by Arduino “having11” Guy
This simple project want help people and institution in this Emergency. A pulse oximeter for fast reaction to the Covid-19.
Project tutorial by cerebrum_2020
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