Measurement Computing has announced the USB-SSR24, a USB-based device for monitoring and controlling solid-state relays. It offers 24 channels of isolated I/O through standard-size OAC5/ODC5/IAC5/IDC5 ...

ESP-01 is a tiny and useful piece of hardware. It has a 32-bit MCU, 2.4GHz 802.11 b/g/n WiFi, 1MB flash memory, and several other useful embedded features. Such ...

Over the years, control relays of various types have been used by the hundreds — even thousands — to control nearly every function in commercial and industrial processes. Today, many of those ...

This chapter covers representative general-purpose relays used in the control circuits of most industrial, commercial, and consumer products. Relay names and terminology are in accordance with ...