1 files changed, 77 insertions, 0 deletions
diff --git a/morningtown.c b/morningtown.c
new file mode 100644
index 0000000..85959fa
--- /dev/null
+++ b/morningtown.c
@@ -0,0 +1,77 @@
+#include <pico/stdlib.h>
+#include <hardware/rtc.h>
+#include <pico/util/datetime.h>
+
+#define LED_GREEN 21
+#define LED_RED 22
+
+static void alarm_callback()
+{
+	datetime_t t = {0};
+	rtc_get_datetime(&t);
+
+	if ( (t.hour == 7) && (t.min >= 15) ) {
+		gpio_put(LED_RED, 0);
+		gpio_put(LED_GREEN, 1);
+	} else if ( (t.hour >= 8) && (t.hour < 12) ) {
+		gpio_put(LED_RED, 1);
+		gpio_put(LED_GREEN, 1);
+	} else {
+		gpio_put(LED_RED, 0);
+		gpio_put(LED_GREEN, 0);
+	}
+}
+
+
+static void start_demo()
+{
+	int i;
+	for ( i=0; i<10; i++ ) {
+		gpio_put(LED_RED, 1);
+		gpio_put(LED_GREEN, 0);
+		sleep_ms(250);
+		gpio_put(LED_RED, 0);
+		gpio_put(LED_GREEN, 1);
+		sleep_ms(250);
+	}
+}
+
+
+int main()
+{
+	gpio_init(LED_GREEN);
+	gpio_init(LED_RED);
+	gpio_set_dir(LED_GREEN, GPIO_OUT);
+	gpio_set_dir(LED_RED, GPIO_OUT);
+
+	datetime_t t = {
+		.year  = 2023,
+		.month = 2,
+		.day   = 5,
+		.dotw  = 0, /* 0=Sunday */
+		.hour  = 22,
+		.min   = 25,
+		.sec   = 0
+	};
+	rtc_init();
+	rtc_set_datetime(&t);
+
+	/* Prove we're awake, then reset everything */
+	start_demo();
+	gpio_put(LED_RED, 0);
+	gpio_put(LED_GREEN, 0);
+
+	datetime_t alarm = {
+		.year  = -1,
+		.month = -1,
+		.day   = -1,
+		.dotw  = -1,
+		.hour  = -1,
+		.min   = -1,
+		.sec   = 0
+	};
+
+	rtc_set_alarm(&alarm, &alarm_callback);
+
+	while (1);
+}