Our medical experts vetted the best and most popular watches that monitor heart rate on the market for 2025.

While developing a vacuum system used for homemade PVD sputtering aparatus I felt the need of a simple and cheap vacuum gauge that can measure pressures as low as 1 Pa. I was not able to find online a ...

The sensors used in this prototype are the MQ-2 sensor, DHT-11 sensor, flame sensor, LDR sensor, and RFID. The research results show that the multi-sensor integration was successful, and each sensor ...

Simple measurement of eye diagram and BER using high-speed asynchronous sampling ...

Browse 500+ Arduino projects with downloadable code and circuit diagrams. ... June 11, 2025. ... How to build Blind Stick using Arduino Nano and Ultrasonic sensor. Walking safely and confidently can ...

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