ESP32 programming (8/8): SmartNode capstone — sensor + web + telemetry
Combine DHT22, relay, web dashboard, telemetry — full IoT project checklist.
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Beginner Arduino ESP32 course — IoT from Blink to SmartNode · Part 8/8▼
Part 8/8 · Capstone SmartNode: WiFi reconnect, DHT every 5 s, POST telemetry every 60 s, web /on /off /status JSON.
Congratulations — you finished the beginner ESP32 Arduino course. Review the course hub.
Series navigation: ← Part 7 — Course complete!
Frequently asked questions
What to learn next?
MQTT, deep sleep, OTA, ESP-NOW, or ESP-IDF for advanced firmware.
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ESP32 programming (1/8): Board intro, Arduino IDE setup & Blink
Free ESP32 Arduino course — part 1: DevKit, esp32 board package, Blink sketch, Serial Monitor. Roadmap: learn-arduino-esp32-from-scratch
Read more →ESP32 programming (2/8): Digital GPIO, buttons & debounce
ESP32 GPIO: digital I/O, internal pull-up, LED toggle, software debounce.
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ESP32 LEDC PWM, smooth LED fade, ESP32Servo library for 0–180° control.
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