I recently contributed a design for a simple platinum resistance temperature detector (PRTD) resistance two-wire 4-20mA transmitter circuit illustrated in Figure 1. Figure 1 A two-wire, 4 to 20 mA ...

The temperature coefficient of resistance (TCR), also referred to as RTC, is a performance characteristic that is heavily influenced by resistor construction for very low resistance values and can be ...

I built a 16 x 9 array of modules using discreet R, G and B LEDs, and a pic to decode DMX512 to drive them. I've updated the diagram to use the Arduino 5V to run the chips instead of the 3.3V and ...

Twelve volts was a big deal when domestic manufacturers adopted it in the '50s. Doubling their voltage from 6 made electrical systems comparatively efficient and the increased power ushered in a new ...