Check our Product Comparison Matrix if you are unsure of which of our microcontroller based boards has the combination of relays, digital inputs and outputs, and analog inputs and outputs that you need.
ET51 Microcontroller Board
Add USB connectivity to your ET51 for just $10 more with the USBCONV.
The Industrologic ET51 is an incredibly versatile, but small and simple microcontroller board. It contains everything needed to be a simple industrial controller, yet is simple and inexpensive enough to be a quick development and educational tool as well. Its RS-232 interface and on-board power supply means no additional circuitry to deal with, and its screw terminal connections for all of the signals and power means super easy to wire I/O. Also included is a shrouded and keyed male IDC10 connector to provide an industry standard interface to various I/O boards.
Included with each ET51 is development software including Tiny Machine Basic pre-installed in the microcontroller, a wall block power supply, and a serial port cable to connect to your PC. (Things you must purchase separately with everyone else's single board computer.)
ET51 documents and information: