1 files changed, 79 insertions, 0 deletions
diff --git a/apps/Light Meter/app.c b/apps/Light Meter/app.c
new file mode 100644
index 00000000..9dc06996
--- /dev/null
+++ b/apps/Light Meter/app.c
@@ -0,0 +1,79 @@
+#include <stdio.h>
+#include <string.h>
+#include <math.h>
+#include "watch.h"
+#include "tsl2591.h"
+
+#include "app.h"
+
+ApplicationState application_state;
+char buf[16] = {0};
+
+void app_init() {
+    memset(&application_state, 0, sizeof(application_state));
+}
+
+void app_wake_from_deep_sleep() {
+    // This app does not support deep sleep mode.
+}
+
+void app_setup() {
+    watch_enable_external_interrupts();
+    watch_register_interrupt_callback(BTN_MODE, cb_mode_pressed, INTERRUPT_TRIGGER_RISING);
+    watch_register_interrupt_callback(BTN_LIGHT, cb_light_pressed, INTERRUPT_TRIGGER_RISING);
+    watch_register_extwake_callback(BTN_ALARM, cb_alarm_pressed, true);
+
+    watch_enable_buzzer();
+    watch_enable_leds();
+
+    // pin A0 powers the sensor on this board.
+    watch_enable_digital_output(A0);
+    watch_set_pin_level(A0, true);
+    delay_ms(10);
+
+    watch_enable_i2c();
+
+    watch_enable_display();
+
+    watch_register_tick_callback(cb_tick);
+
+    delay_ms(5000);
+    if (!tsl2591_init()) {
+        printf("Sensor init failed?\n");
+    }
+}
+
+void app_prepare_for_sleep() {
+}
+
+void app_wake_from_sleep() {
+}
+
+bool app_loop() {
+    return true;
+}
+
+void cb_mode_pressed() {
+    application_state.mode = (application_state.mode + 1) % NUM_MODES;
+    application_state.mode_changed = true;
+    application_state.mode_ticks = 300;
+    application_state.page = 0;
+}
+
+void cb_light_pressed() {
+    application_state.light_ticks = 3;
+}
+
+void cb_alarm_pressed() {
+}
+
+void cb_tick() {
+    uint16_t result = tsl2591_get_visible_light_reading();
+    printf("Visible Light : %d\n\n", result);
+    if (application_state.light_ticks > 0) {
+        application_state.light_ticks--;
+    }
+    if (application_state.mode_ticks > 0) {
+        application_state.mode_ticks--;
+    }
+}