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iot-dashboard

[UNTESTED] — v0.5 paper-correct

Builds clean on native_sim/native/64. Real-silicon bring-up + an MQTT broker round-trip land later.

A live temperature / humidity / pressure dashboard with sparkline + MQTT/TLS publish — sensor → local screen + cloud telemetry, all on one E1M-AEN module.

Source: examples/iot-dashboard/.

Components​

  • BME280 — T / RH / P environment sensor via <alp/chips/bme280.h>.
  • OPTIGA Trust M — TLS client cert + private key for the MQTT broker authentication.
  • ST7789 TFT — 240×320 panel rendering the dashboard.
  • mbedtls + coreMQTT-SN — TLS + MQTT publish via library knobs.
  • LVGL — composes T/H/P dashboard with sparkline + status strip.

The app uses the portable <alp/iot.h> alp_wifi_connect path so the same source builds against AEN (external Wi-Fi via CC3501E) or V2N (on-module Murata) — only som.sku changes.

board.yaml​

schema_version: 2

som:
  sku: E1M-AEN701

carrier:
  name: E1M-EVK

cores:
  m55_hp:
    os: zephyr
    app: ./src
    peripherals: [i2c, spi]
    libraries: [lvgl, mbedtls, coremqtt_sn]
    iot: { wifi: true, mqtt: true, tls: true }

chips:
  - bme280
  - optiga_trust_m
  - st7789

diagnostics:
  log_level: info

See also​

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