Content for LM293


The LM393B and LM2903B devices are the next generation versions of the industry-standard LM393 and LM2903 comparator family. These next generation comparators provide outstanding value for cost-sensitive applications featuring lower offset voltage, higher supply voltage capability, lower supply current, lower input bias current, lower propagation delay, and improved 2kV ESD performance with drop-in replacement convenience. All devices consist of two independent voltage comparators that are designed to operate from a single power supply over a wide range of voltages. Operation from dual supplies is also possible as long as the difference between the two supplies is within 2 V to 36 V, and VCC is at least 1.5 V more positive than the input common-mode voltage. Quiescent current is independent of the supply voltage, and the outputs can be connected to other open-collector outputs to achieve wired-AND relationships.

One-Bit Textile Eye

“I saw Irene Posch’s 1-Bit Textile and Kobakant’s Flip-Dot swatch and wanted to have a play with the idea. And it was Christmas, and there were steampunks to adorn.”

Read Your Main Power Electricity Meter (ESP8266, WiFi, MQTT and Openhab)

“In this Instructable you find out how I read my Main Electricity Power use of my house and publish it via an ESP8266, Wifi, MQTT in my Openhab Home Automation. I have a ‘smart meter’ ISKRA Type MT372, however it …