Simple IoT Arduino examples

This directory contains reference implementations of Arduino firmware that can be connected to the MCU Serial Client in SIOT system.

install arduino-cli
siot_setup (only run once)
siot_protobuf_gen (can be used to update generated protobuf files)
edit envsetup.sh to make sure you are set up for the correct board
siot_build_siot_mcu_serial (build siot MCU example)

When connected to the Simple IoT Go application on a host system, disable the client before trying to program the MCU.

Projects

siot-mcu-cobs: simple ascii messages wrapped with cobs
siot-mcu-serial: simple example of sending points over USB
siot-mcu-serial-hr: example of sending both normal and high rate points over USB
siot-mcu-serial-hr-fixed: encode once, and send point as fast as possible

Performance results

All testing was done with a SEEED Studio XIAO SAMD21 board (48Mhz). Assume packet is 30 bytes. SAMD21 USB connection is full speed (12Mbps)

siot-mcu-serial-hr
- could send about 1451 pts/second (348,241 Kbps)
- disabling sending, could encode 1618 pts/second
siot-mcu-serial-hr-fixed
- could send about 11,000 pts/second (2.64Mbps)