This is a library for the laser particle sensor module PM2005 manufactured by Wuhan Cubic Optoelectronics. The PM2005 module counts airborne particles of different sizes in catagories of 0.3, 2.5, and ...

Abstract: Historically, analog null meters have been used to determine zero voltage conditions in metrological applications. When digital multimeters (DMMs) became available with resolution comparable ...

Getting started with Arduino can feel quite overwhelming at first because you're faced with the decision of what board to buy ...

We earn commissions from purchases you make using links in our articles. Learn more. Anyone who works on their car should have a multimeter, but they come in handy around the house too. Whether you ...

Abstract: This paper deals with the design and development of an electrostatic voltmeter based on surface potential sensor. For the realization of the device, constructed by us, a surface potential ...

Substitutes the RS485 modbus service of DTSU-H coil based 3 phase power meter for usage with a Deye hybrid inverter. On phase L1 it reads every 4. current waves, on phase L2 and L3 it reads only every ...

Installing a smart meter could help you pay less for your energy, but not everyone is convinced by the technology. While gas and electricity prices today are far below their peak during the 2022 ...