Develop a program on Mac OS X to control an Arduino board managing 12V LEDS.

Develop a program on Mac OS X to control an Arduino board managing 12V LEDS. The 5 LEDS are activated by MOSTETS through digital ports 7,8,9,10,11 on the Arduino boards. The idea is to have a program allowing the user to create, start, pause and stop sequences of stroboscopic lights. The user should have a simple way to manage the frequency of the LEDs(on/off) and which LEDS are being lit together and/or in which order. Example of a sequence: 1. LED1 + LED2 are ON for 5 seconds at a frequency of 20Hz 2. LED 3 and LED4 are ON for 20 seconds at a frequency of 50 HZ and LED 5 is on at a frequency of 100 HZ for 5 seconds. 3. Go to 1 The user should easily be able to create and save sequences. The program will compile the instructions into the Arduino UNO board.