Arithmetic Alarm Clock

Objective Here we build an alarm clock. We adopt the joystick to set the clock, use the keys to set the system time and do arithmetic choice. 600px Principle Detect the rocker direction of the Joystick: In the Y-axis direction: Short press the upper key to increase the time and long press it to start or close the alarm clock. In the X-axis direction: Shake left to increase the time and shake right to decrease. When the alarm is closed, the key1 can set to increase the hour of the system time, the key2 can set to decrease that time, the key3 can set to increase the minute and the key4 can set to decrease the minute. The time setting for the key1, key2, key3 and key4 can be treated as the four choice questions of A, B, C and D when the alarm is started. 600px Equipment Module Number Function mCookie-CoreUSB 1 Core board mCookie-Hub 1 Sensor pin board mCookie-Audio 1 Audio module mCookie-Amplifier 1 Amplifier module mCookie-Shield 1 Audio extension module mCookie-RTC 1 Time clock module Microduino-Crash 2 Crash sensor Microduino-Joystick 1 Rocker Other Equipment: Two loudspeakers A USB cable Hardware Buildup Setup1：Connect the two Crash sensors to the D4 and D6 pin of the Hub, and the Joystick to A0 and A1. Setup 2：Insert the TF card into the slot of the AudioShield. Setup 3：Stack the Audio and AudioShield together, connect them to the PC and you can play any MP3 files saved in the TF card. Setup4：Connect the two loudspeakers to the Amplifier. Setup5：Stack the Audio, AudioSheild and Amplifier. Setup6：Connect the activated battery box to the BM module. Setup7：Stack all modules freely(except the Audio, AudioShield and Amplifier should be next to each other) and complete the circuit buildup. 600px Code Download Code Description " audio.h"--Audio play control. oled.h-- Interface display "key.h"-- Joystick and key detection. "choose.h"--Key and joystick control function Find "setRtcTime(15, 11, 13, 5, 17, 14, 00);" to set the time (Year, month, day, week, hour, minute and second). Please remove "//" download code before the setting, add "//" after that and download again or the system will reset the time when it starts after power-off. Define the clock time in "choose.h". Users can change it according to personal needs. int alarm_hour = 19; int alarm_minute = 45; Define "long press or short press" in the key, which can also be changed by users. Set the alarm to ON and set it to play music when it meets the time. if (alarm) { if (alarm_switch == true) audio_play(); else audio_pause(); } Generate choice questions randomly. if (!down && alarm_switch) { num_one = random(0, 100); num_two = random(0, 100); data_choose = random(0, 4); if (data_choose == 0) { num_data[0] = num_one + num_two; num_data[1] = num_one + num_two - 10; num_data[2] = num_one + num_two + 10; num_data[3] = num_one + num_two + 1; } if (data_choose == 1) { num_data[0] = num_one + num_two - 10; num_data[1] = num_one + num_two; num_data[2] = num_one + num_two + 10; num_data[3] = num_one + num_two - 1; } if (data_choose == 2) { num_data[0] = num_one + num_two + 10; num_data[1] = num_one + num_two - 10; num_data[2] = num_one + num_two ; num_data[3] = num_one + num_two - 1; } if (data_choose == 3) { num_data[0] = num_one + num_two + 10; num_data[1] = num_one + num_two - 10; num_data[2] = num_one + num_two + 1; num_data[3] = num_one + num_two; } down = true; } If you do right of the choice question, the question will reduce one or it'll add one. if (key_num > 0) { if (key_num == data_choose + 1 ) { onec_change -= 1; down = false; } else onec_change += 1; } Result You can set the time through the Crash sensor and set the alarm clock through the joystick. Besides, you can build beautiful shell for this project with LEGOs since mCookie modules can be easily stacked with LEGO boards. 600px Video