Pebble Accelerometer Average Demo Scaffold
#include <pebble.h> | |
// NOTE: See http://developer.getpebble.com/docs/c/Foundation/Event_Service/AccelerometerService/ for docs | |
Window *my_window; | |
TextLayer *text_layer; | |
static void display_acceleration(AccelData * data, uint32_t num_samples); | |
// TODO: Write accelerometer event handler | |
// TODO: All all the data points together for each axis, then divide by the number of samples | |
// TODO: Create an empty display string variable large enough | |
// TODO: Use snprintf to format the accelerometer readings into a character stream | |
// TODO: Use text_layer_set_text(text_layer, char * <your string here>); to display | |
static void main_window_load(Window *window) { | |
// Setup the text layer | |
text_layer = text_layer_create(layer_get_bounds(window_get_root_layer(my_window))); | |
layer_add_child(window_get_root_layer(my_window), text_layer_get_layer(text_layer)); | |
text_layer_set_text(text_layer, "Acquiring data..."); | |
// TODO: Set Accelerometer sample rate | |
// Use accel_service_set_sampling_rate(AccelSamplingRate rate) with one of | |
// ACCEL_SAMPLING_10HZ, ACCEL_SAMPLING_25HZ, ACCEL_SAMPLING_50HZ, or ACCEL_SAMPLING_100HZ | |
// TODO: Register accelerometer event handler with a sample buffer | |
// Use accel_data_service_subscribe(uint32_t samples_per_update, AccelDataHandler handler) | |
} | |
void handle_init(void) { | |
my_window = window_create(); | |
// Setup main_window_load to run once the window loads | |
window_set_window_handlers(my_window, (WindowHandlers){.load = main_window_load}); | |
window_stack_push(my_window, true); | |
} | |
void handle_deinit(void) { | |
// TODO: De-register accelerometer event handler | |
// Use accel_data_service_unsubscribe() | |
text_layer_destroy(text_layer); | |
window_destroy(my_window); | |
} | |
int main(void) { | |
handle_init(); | |
app_event_loop(); | |
handle_deinit(); | |
} |
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