Human presence detection is essential for safety, security, or other reasons. There are various software and hardware technologies and methods for detecting the presence of a human body in an area of interest (AOI). Among those techniques, Radar technology is one of the widely used techniques if the aim is to detect only the presence of a […]
NXP Semiconductors PCF2131 Nano-Power Highly Accurate Real-Time Clock (RTC) features an integrated Temperature Compensated Crystal (Xtal) Oscillator (TCXO) and a 32.768kHz quartz crystal. The PCF2131 is optimized for very high accuracy and ultra-low power consumption. The PCF2131 offers a selectable I2C-bus or SPI-bus, a backup battery switch-over circuit, a programmable watchdog function, four timestamps function, and many other features.
About Accurate LC Meter This is one of the most accurate and simplest LC inductance / capacitance Meters that one can find, yet one that you can easily build yourself. This LC Meter allows to measure incredibly small inductances starting from 10nH to 1000nH, 1uH to 1000uH, 1mH to 100mH and capacitance from 0.1pF up