diff --git a/blink-pico-w/README.md b/blink-pico-w/README.md
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+# Overview
+
+A blink example for Raspberry Pi Pico W. Contrary to the regular Pico, the LED on this board is connected to the WiFi chip (CYW43).
+
+# Code
+
+Turn on and off the on-board LED for every seconds.
+
+```js
+const cyw43_arch = require('cyw43_arch');
+const led = 0
+let state = 1;
+
+setInterval(() => {
+  cyw43_arch.gpioPut(led, state);
+  state = (state + 1 ) % 2; // Toggle between 1 and 0
+}, 1000);
+```
+
+# See also
+
+- [pinMode()](https://kalumajs.org/docs/api/digital-io#pinmode)
+- [digitalToggle()](https://kalumajs.org/docs/api/digital-io#digitaltoggle)
+- [setInterval()](https://kalumajs.org/docs/api/timers#setinterval)
diff --git a/blink-pico-w/index.js b/blink-pico-w/index.js
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+const cyw43_arch = require('cyw43_arch');
+const led = 0
+let state = 1;
+
+setInterval(() => {
+  cyw43_arch.gpioPut(led, state);
+  state = (state + 1 ) % 2; // Toggle between 1 and 0
+}, 1000);
diff --git a/blink-pico-w/package.json b/blink-pico-w/package.json
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+{
+  "name": "blink-pico-w",
+  "description": "Blink the on-board LED on a Raspberry Pico W"
+}