Circuitrocks • Data logger as first IoT lesson, kit recommendations?

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Data logger as first IoT lesson, kit recommendations?

Posted: Mon Jun 29, 2026 8:00 am

by rina_stem

Grade 11 STEM, transitioning from intro electronics to "real" projects. Data logger sounds approachable.

Lesson scope:

Measure something (temperature, light, soil moisture)
Log to SD card OR upload via WiFi
Graph results, write conclusion

Kit options I see:

Arduino + DHT22 + SD shield: classic, ~PHP 1200 per group
ESP32 + sensor + ThingSpeak: more modern, ~PHP 900, but cloud account needed
Micro:bit: pre-packaged, easier but locked ecosystem

What do other teachers use? Looking for ~5-session unit, ~30 students.