Product Name: DC 12V 8 Channel Pro mini PLC Board Relay Shield Module for Arduiuo Multifunction Delay Timer Switch Board Package inlcuded(Ship according to the item you purchased): 1 PCS Pro Mini Download cable(CH340 USB to TTL232)1 PCS pro mini ATMEGA328P 5V/16M(Has been welding pin)...
this module is designed to meet your needs. The board's pyserial arduino and RS485 PLC IO expanding shield make it a breeze to integrate with existing systems, while the board's onboard resources, including a 4-bit digital tube display, provide clear and concise feedback on system status....
Arduino I/O accessories In the next figure, you can see an Arduino Nano mounted on a DIN rail screw shield from eBay. It’s a setup suited for heavy-duty industrial applications. Another fabulous I/O solution (with an RS-485 serial port) is the “Iono Arduino” from Sferalabs (https:...