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and status LEDs
Note: The 5V Trinket shown in photos is not included
Pulse Sensor Amped is a greatly improved version of the original Pulse Sensor
This is the White Adafruit 0
12 µm X 1
Adafruit DS3231 Precision RTC Breakout distance and status LEDsThe datasheet for the DS3231 explains that this part is an "Extremely Accurate IC Integrated RTC TCXO Crystal". And, hey, it does exactly what it says on the tin! This Real Time Clock (RTC) is the most precise you can get in a small, low power package. Most RTCs use an external 32kHz timing crystal that is used to keep time with low current draw. And that's all well and good, but those crystals have slight drift, particularly when the temperature
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