Until this week, i already did testing one by one of my circuit. Start from the 5V supply, to the LCD, to the Arduino Uno R3 and PPG circuit. As you can see figure below, there are the result.
It is not clear, the LCD printing some words which is "Heart Beat Rate BPM = (love symbol). As you guys can see, my circuit is working, but now, i have some problem which is the output from the PPG is not appear at the LCD. Theres might be my programming or the circuit design. Still working on it. Wish me luck
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