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-rw-r--r--sdk-blink/blink.c23
1 files changed, 23 insertions, 0 deletions
diff --git a/sdk-blink/blink.c b/sdk-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() {
+#ifndef PICO_DEFAULT_LED_PIN
+#warning blink example requires a board with a regular LED
+#else
+ const uint LED_PIN = PICO_DEFAULT_LED_PIN;
+ 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);
+ }
+#endif
+}