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.