A version of thie article appeared in the February 2012 issue of Test & Measurement World. See the PDF. Many industrial systems use the 4–20-mA loop to transmit measurements from sensors to displays, ...

Microcontrollers contain a broad range of features due to the numerous end-use markets they address. Typical microcontrollers come in 8-, 16-, and 32-bit versions and commonly are used in consumer, ...

This circuit solved a problem encountered in developing a portable device with an ARM Cortex-M0 processor. The power supply consisted of two AA batteries (2 × 1.5 V), and I needed to signal the user ...

In last week's installment, we showed how to get started with Csound. This week we take it to the next step by constructing a homemade MIDI controller circuit and use the new device to control Csound ...

The MCP120 is a microcontroller voltage supervisory circuit with open drain output. This voltage supervisory device is designed to hold a microcontroller in reset until the supply voltage has reached ...