On: Ray Ozzie's latest venture is a cheap IoT board with flat rate connectivity

[seam]

ah very interesting. Thank You for the correction! I quickly saw what looked like pci and some GPIO options.

[SV_BubbleTime → seam]

Looks like you communicate through that header over I2C, USB, or “serial”… which I am not sure if they mean SPI or UART/USART (or yes).

[rozzie → SV_BubbleTime]

All of USB, I2C, low power UART (9600 fixed), and high speed USART.

They all equivalently are JSON request/response ports. I2c uses a simple serial-over-I2C protocol.

Most customers use the I2C or low power UART interfaces because the device only uses ~8uA when listening on those ports. (Our internal MCU can listen on those ports while in STOP2 mode.)