BUILD 01 — SMART PARKING BARRIER
Arduino Uno + HC-SR04 + SG90 servo. The agent is tracing the signal path on pin D9.
- Board:
- UNO R3 · simulated
- Port:
- Demo
- Voltage:
- 5V
- Distance:
- 18 cm
- Steps:
- 3 of 7
- Tools:
- 9
- Status:
- GREEN
22:41:03 > AGENT: servo attached on D9
22:41:07 > TRIGGER: 18 cm → OK
22:41:09 > MISTAKE: Echo on D6, expected D7
22:41:11 > FIXED: moved to D7
22:41:14 > BARRIER SWEEP ACTIVE
CURRENT BUILD — OVERHEAD VIEW
No WebMCP in this browser
Manual demo controls are still active.
THE GATE WON'T OPEN
The car is at the line and the sensor is pinging, but the sketch never gets the reading: the Echo wire is one hole out. Ask the agent to move it.
inspect_buildshow_correctionThe demo puts the fault back a few seconds later, so you can watch it again.
The lamp is the agent
It stands in the corner of every bench. Each time a tool is called through WebMCP, its face changes with what the call is doing, and the ring it sends out lands on the place the call is about. The ring says where; the face says what.
Reading your build
Project explainer · Build context · Build inspection · Step check
Thinking it over
Comparing against the sketch
Pointing at it
Correction · Pointer
Working on the bench
Lead move
Running the test
Build test
Between two calls it listens. With no agent in the browser it waits, eyes shut.
Six chapters, one ladder
Each chapter adds exactly one idea to the one before it, and the parts list grows with it: three at the start, six at the end. The bench above is chapter six.
| Chapter | Build | What it adds | Time | Parts | Status |
|---|---|---|---|---|---|
| 01 | Breathing Lamp15 min · 3 parts | Ready | |||
| 02 | Traffic Light20 min · 4 parts | Ready | |||
| 03 | Motion Night Light25 min · 5 parts | Ready | |||
| 04 | Plant Guardian35 min · 5 parts | Ready | |||
| 05 | Touchless Soap Dispenser40 min · 6 parts | Ready | |||
| 06 | Smart Parking Barrier35 min · 6 parts | Ready |
Blue edge: the build standing on the bench above.