# HDK



The WiFi Pineapple Mark V HDK is an Arduino Pro based microcontroller board featuring the ATmega328.

![](imgs/hdk.jpg)

## Schematic & Reference Design

  + EAGLE files: [hdk-design.zip](https://www.dropbox.com/s/3zg4lpdo9q3xkql/hdk-reference-design.zip?dl=1)
  + Schematic: [hdk-schematic.pdf](https://www.dropbox.com/s/3ywjpkft82bi5nq/hdk-schematic.pdf?dl=1)

## Summary

  + Microcontroller - ATmega328
  + Operating Voltage - 3.3V
  + Input Voltage - 3.3V provide by the Mark V
  + Digital I/O Pins - 14 (of which 6 provide PWM output)
  + Analog Input Pins - 6
  + DC Current per I/O Pin - 40 mA
  + Flash Memory - 32KB of which 2 KB used by bootloader
  + SRAM - 2 KB (ATmega328)
  + EEPROM - 1 KB (ATmega328)
  + Clock Speed - 20 MHz

## Pins
  + HDK PIN 14 -- MK5 GPIO 21
  + HDK PIN 15 -- MK5 GPIO 20
  + HDK PIN 16 -- MK5 GPIO 19
  + HDK PIN 17 -- MK5 GPIO 18