20 Pin Machined IC Base 2.54mm Pitch Low-Power RS-485 Transceivers Two-wire Serial Interface or I2C(14

Two-wire Serial Interface or I2C(14

A small red and green bi-color 3mm light-emitting diode with a common cathode that produces consistent light and consumes little power

In an Arduino Nano

causing it to "click" into place and stay there until enough effort is applied to move it

This is the PC410 Optocoupler manufactured by Toshiba

20 Pin Machined IC Base 2.54mm Pitch Low-Power RS-485 Transceivers Two-wire Serial Interface or I2C(1420 Pin Machine tooled IC Socket, round IC pin sockets generally for preventing damage to IC's from soldering and while testing multiple circuits. IC sockets are used in Applications where integrated circuits (ICs) have short lead pins. They help in providing safe removal and insertion of IC chips. Features Tin Plated Leads High Quality Excellent Insulation Resistance High Precision Type Easy for IC Removal and Insertion Specification Connector Type