Draws an ECG-like waveform from analog input A0 on a 128x64 SH1106 OLED using U8g2. Shows numeric Pulse (BPM) and SpO2 (%) on a 16x2 I2C LCD. Streams values over Bluetooth via an HC-05 module. Samples ...
Pulse oximeters became common household devices due to COVID-era awareness, for respiratory self-monitoring, and helping track conditions at home between doctor’s appointments.Today, buyers want a ...
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