rEDI Overview

rEDI Overiew

The rEDI Educational Board is a microcontroller board based on the ATmega644P. It has 32 digital input/output pins (of which 6 can be used as PWM outputs), 8 analog inputs, a 16 MHz crystal oscillator, 4 PWM controlled servo headers, 4 switch/led combos, a piezo speaker, a 10 kOhm thumb wheel trim-pot, a breadboard, and a reset button. It contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it with a AC-to-DC adapter or battery to get started.

Power and USB Connectors

rEDI Power and USB Connectors

  • Selectable USB/Power regulator power source.
    • NOTE: USB power source is limited to 500 mA.
  • 2.1 mm power jack.
  • Battery pack screw-down terminals.
  • USB A jack.

Switch LED Combos

rEDI Switch/LED Combos

  • 4 color LEDs: green, yellow, red, blue.
  • 4 momentary switches.
  • Single digital pin used for each switch/LED combo.

Other Components

rEDI Components

  • Piezo speaker.
  • 10 kOhm thumb wheel trim-pot.
  • 5 amp 5 volt regulator.

rEDI Components

  • Arduino(tm) Shield headers.
  • Breadboard.
  • Easy-access reset switch.