4 ms·

Serial? No, connect them via the USB and configure one of them to appear as a USB Network Interface. Point-to-point connection established. Plenty of HOWTO's a

• dogma1138 9y ago
  Yes, but again this adds complexity. If you use USB you can also emulate one as an MMC device. But overall wifi is simple and guaranteed to work. If this was a product then going the SD card or a "proprietary" protocol is the way to go. But if you are using Ethernet then wifi or wire is simpler. In this case it's also less to worry about electro-mechanical connections.