The PiSquare board itself features a Raspberry Pi RP2040 microcontroller and ESP-12E 802.11b/g/n (WiFi 4) controller plus a 0.91 inch OLED display, 16MB of flash, and a USB Type-C port.

At the same time, the board can be fixed onto the 40-pin GPIO header that sits on most Raspberry Pi boards, including Raspberry Pi 4 and Raspberry Pi Zero. This lets users program the sensors and ...

Pinetek Networks’ IOL HAT is a Raspberry Pi expansion board using the IO-Link (IEC 61131-9) protocol to interact with industrial sensors. It’s based on the Analog Devices MAX14819 IO-Link master ...