Initial Release

blink/CMakeLists.txt

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+add_executable(blink
+        blink.c
+        )
+
+# Pull in our pico_stdlib which pulls in commonly used features
+target_link_libraries(blink pico_stdlib)
+
+# create map/bin/hex file etc.
+pico_add_extra_outputs(blink)
+
+# add url via pico_set_program_url
+example_auto_set_url(blink)

blink/blink.c

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+/**
+ * Copyright (c) 2020 Raspberry Pi (Trading) Ltd.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include "pico/stdlib.h"
+
+int main() {
+    const uint LED_PIN = 25;
+    gpio_init(LED_PIN);
+    gpio_set_dir(LED_PIN, GPIO_OUT);
+    while (true) {
+        gpio_put(LED_PIN, 1);
+        sleep_ms(250);
+        gpio_put(LED_PIN, 0);
+        sleep_ms(250);
+    }
+}