Smart Irrigation

Recommended before this lesson:

Water Tank Indicator ↗, Temperature Alert ↗

Your objective

In a Rwandan garden teaching model, LED 1 indicates irrigation demand only when reservoir fullness is at least 20% AND temperature is above 30°C. Otherwise OFF. This LED is not a pump.
Read the timestamped trace and exported code. Explain which state changed, how long it lasted, and why the input caused that response. Change your blocks and run again; Stop cancels, Reset keeps your blocks. Explanations are for reflection, not automatically graded.

Translations are draft and need educator review.

Drag blocks from the toolbox into the workspace. Connect statement blocks beneath Start. Use the zoom controls to see your program.

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My Projects

Run and follow this lesson’s rubric and hints. Completion requires observed behavior in one finished run.

Stop ends the current run and keeps the current device state. Reset clears the device and output, keeping blocks.

Virtual LED

Teaching model: external active-high LED on GPIO 2 (HIGH = ON). Real board wiring differs. This simulation does not verify physical firmware.

OFF · Ready · 0 ms

Execution output

Simulated inputstemperature (°C): 20 °Cwater level (%): 50 %

LED 1 (GPIO 2): OFF

Read-only code preview

Connect one Start and all supported blocks with valid values to preview or run.

Editor keyboard and screen reader access has not been verified. The surrounding instructions and controls are keyboard accessible. Practical alternatives: run the preloaded starter program, import/export workspace JSON, or inspect the read-only JavaScript, MicroPython, and C++ code preview.