Features: - The MAX30102 is an integrated pulse oximeter and heart rate monitor bio sensor module. It integrates a red LED and an infrared LED, photo ..
1, small size: 22 * 18 * 10cm almost all mobile power shell can be easily installed2, full-featured: The market known as the mobile power modules are ..
The 555 timer IC is an extremely popular IC for blinking LED, generate waveforms of different frequencies, driving buzzers.
The LM555 is a highly sta..