Hi, I just ordered 3 balenaFins and I see that you can use the mini PCI express slot for extra storage what storage can I use ??
The Mini PCI express port on the Fin expands the connectivity capabilities to a number of different modules (4G LTE, Zigbee, LoRa, additional storage, RS232/485, CANbus). The 4-pin USB header allows a wide set of possible design applications such as additional storage, secondary ethernet port, multimedia readers, additional radio interfaces, etc. The co-processor 18-pin header allows analog and time-sensitive I/O
Also is there another serial port on the 18pin header and if so do you have a descriptive pinout document?