tinygrid

A Thread end device that never routes. It replaces OpenThread under tinytalk's matter_thread.h. Portable C11.

Does attach as a child, rx-on or sleepy. Key rotation, off-mesh routable address, UDP up to 1,280 B, realm-local multicast, ping, SRP, DNS-SD.

Does not route, lead, join, commission, CSL, link metrics. Claims Thread 1.1.

19.3 KB flash, 9.9 KB RAM, LTO release build, with its own radio driver in place of Nordic's.

Use

Add as a Zephyr module, with ports/zephyr/tinygrid.conf and, on nRF52, ports/zephyr/tinygrid-radio.conf. CONFIG_TINYGRID_POLL_MS makes a sleepy child.

Test

make test      # spec vectors, MLE, AES-CCM*, radio filter and timing
make interop   # a host node against an OpenThread leader

Needs Mbed TLS 3.6 (MBEDTLS_PREFIX). make interop also needs OT_CLI:

ot-cli-ftd on OpenThread's simulated radio

cmake -S <ncs>/modules/lib/openthread -B build/ot-sim -GNinja \
  -DOT_PLATFORM=simulation -DOT_FTD=ON -DOT_MTD=OFF -DOT_RCP=OFF \
  -DOT_APP_NCP=OFF -DOT_APP_RCP=OFF \
  -DOT_SRP_SERVER=ON -DOT_ECDSA=ON -DOT_SERVICE=ON -DOT_BORDER_ROUTER=ON \
  -DOT_NETDATA_PUBLISHER=ON -DOT_PING_SENDER=ON -DOT_SIMULATION_INFRA_IF=OFF \
  -DOT_DNSSD_SERVER=ON -DOT_DNS_CLIENT=ON
ninja -C build/ot-sim ot-cli-ftd

Apache-2.0

Unofficial. Not affiliated with, endorsed or certified by any company or standards body named here. Trademarks belong to their owners.