Example
projects

Real code, ready to deploy. Browse by category or dive into the source.

Basic Pico W

Blink LED

Toggle the onboard LED on and off with a timer

await this.env.DEVICE
  .setGpioState(99, "high");
// Pin 99 = onboard LED

Basic Pico W

Button Input

React to physical button presses on a GPIO pin

await this.env.DEVICE
  .configureGpioInputMonitoring(
    14, true);
// Fires gpio_state_changed

Basic I2C

OLED Counter

Display a button press counter on an SSD1306 OLED

this.env.DEVICE.display
  .clear()
  .drawText(0,0,`Count: ${n}`)
  .render();

Sensors ADC

Temperature Monitor

Read an analog temperature sensor with periodic ADC polling

await this.env.DEVICE
  .configureGpioInputMonitoring(
    26, true);

Sensors I2C

BME280 Weather

Read temperature, humidity, and pressure over I2C

const sensor = Pico.i2c({
  bus: 0,
  sda_pin: 0, scl_pin: 1
});

Sensors GPIO

Motion Detector

Detect motion with a PIR sensor and log events to KV

if (msg.type === "gpio_state_changed")
  await kv.put("lastMotion",
    Date.now());

Integration Webhook

Discord Alerts

Send a Discord message when temperature exceeds a threshold

await fetch(WEBHOOK_URL, {
  method: "POST",
  body: JSON.stringify({
    content: `Temp: ${t}C`
  })
});

Integration KV

Data Logger

Log sensor readings to cloud KV storage with timestamps

await this.env.DEVICE.kv
  .put(`reading:${ts}`,
    { temp, humidity });

Advanced Multi-sensor

Smart Thermostat

Control heating based on temperature with OLED display

if (temp < target) {
  await device.setGpioState(
    RELAY_PIN, "high");
  display.drawText(0,0,"Heating");
}

Advanced Fleet

Multi-Device System

Coordinate multiple devices reading different sensors

// Same script deploys to
// multiple devices — each
// gets its own KV namespace
kv.put("role", "sensor-a");

Advanced ADC + GPIO

Plant Watering

Monitor soil moisture and control a water pump automatically

if (moisture < 30) {
  await device.setGpioState(
    PUMP_PIN, "high");
  await delay(5000);
}

Advanced RPC

Device-to-Device RPC

Sensor triggers light controller via type-safe method calls

await this.env.DEVICES[
  "light"
].turnOn();
// { status: "on" }

Want the full source?

All examples are available on GitHub with instructions.

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Example projects