Pebble Accelerometer Average Demo Scaffold

main.c

#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();
}