/Nano-Atmega168-Development-Board

Primary LanguageC++

Read Me

Overview

I am designing a development board for year 11 students (15-16 year olds) to use in 2023

Parts list

  • Arduino Nano with Atmega168 controller
  • Yellow LED
  • RGB LED
  • Trimpot
  • LDR
  • 3 switch DIP switch
  • Button

Pinout and Headers

  • D0 - goes to a header.
  • D1 - goes to a header.
  • D2 - momentary switch.
  • D3 - goes to a header.
  • D4 - DIP switch 1.
  • D5 - goes to a header.
  • D6 - goes to a header.
  • D7 - DIP switch 2.
  • D8 - DIP switch 3.
  • D9 - RGB LED Blue/Green (silkscreen issues).
  • D10 - RGB LED Blue/Green (silkscreen issues).
  • D11 - RGB LED Red.
  • D12 - goes to a header.
  • D13 - Yellow LED.
  • D14/A0 - LDR.
  • D15/A1 - trimpot.
  • D16/A2 - goes to a header.
  • D17/A3 - goes to a header.
  • D18/A4 - goes to a header.
  • D19/A5 - goes to a header.
  • A6 - goes to a header.
  • A7 - goes to a header.

Cool bits

I used the import bmp script in the automate menu to put the logo on the silkscreen.

I also put a testpoint rectangle in the tStop layer to leave it as exposed copper for a GND testpoint.

Future ideas/versions

Have a qwiic / stemmaQT connector on the I2C pins its a JST SH 4-pin Vertical Connector on Adafruit. Or have an led matrix board directly soldered to the I2C pins. Or another button without the debounce resistor - maybe both buttons have resistors but also those PCB jumper solder pads to enable or disable them once shown button bounce issues. https://youtu.be/uOp_2-7_1Hw.