Just when you thought you’d seen an Arduino do everything, [birdyberth] built an Arduino powered Electrocardiogram (ECG or EKG). Electrocardiography is a non invasive method of studying the heart. For ...
// ESP8266 → Arduino (voltage divider on Arduino D2 → ESP RX!) // D2/GPIO4 (ESP RX) → Arduino D2 via 1kΩ + 2kΩ divider // D1/GPIO5 (ESP TX) → Arduino D3 direct #define BT_RX_PIN 4 // HC-05 TXD → ...
A low-cost, real-time ECG signal acquisition and analysis platform built from a SparkFun AD8232 and an Arduino Uno R4 Minima — designed, validated, and documented as an independent engineering ...
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