Digital pins driving LEDs

[david-i]

• Is there a plan to reassign the pins used to drive the LEDs based on the use of the ribbon cable connector for the Mega header.
• What are the current requirements for the LEDs
• What is the overall power consumption of the system?
  • LED
  • Lasers
  • Photodiodes
  • Music shield
  • Arduino board

[MariamRegragui]

• Is there a plan to reassign the pins used to drive the LEDs based on the use of the ribbon cable connector for the Mega header. Yes, I just uploaded the code with the new pins for the leds.
• What are the current requirements for the LEDs. they require 20mA each.

• What is the overall power consumption of the system?

  • LED
  • Lasers
  • Photodiodes
  • Music shield
  • Arduino board

Overall they consume is 471.66 mA.
20mA x 10 (LEDs) + 200mA (Arduino Mega) + 70mA (Music Shield) + 0.16mA x 10 (Photoresistors) = 471.66 mA

[david-i]

With the Arduino Mega, the maximum power that can be used on the arduino part of the system is

• 500 mA if sourcing voltage from USB
• 1000 mA if sourcing voltage from the barrel jack

Does the 70mA used by the music shield include the load of the speaker system?