shocked! Can wearable devices detect mood?

Apple Watch is the most representative wearable device, and heart rate detection provides more possibilities for many third-party applications. Now, heart rate detection is almost a standard feature for mid- to high-end wearables, but they still can't achieve true "re

Detailed calculation method of LED light bar power

The calculation of the power of the LED light bar is related to the matching of the power supply. The LED light bar power supply: Since the power supply is not distributed when the LED light bar is purchased, after calculating the length of the required LED light bar, the required power supply is ca

DSP in FPGA: FIR filter (1)

FIR filters are widely used in digital signal processing. The main function is to filter out signals that are not of interest, leaving useful signals. The FIR filter is an all-zero structure, the system is always stable; and it has a linear phase characteristic, and all signal

Amprius Silicon Electrode Battery is more durable

VC-funded lithium battery company Amprius has now launched a series of batteries that are 25% longer than current market products and can be used for mobile phones and tablets. The investors behind it include Google's Eric Schmidt, VantagePoint Venture and Kleiner Perkins Caufield &