These are small Arduino projects to introduce me to basic electrical concepts.

Simon Says

Features

Used LiquidCrystalIO library by Adafruit

#include <LiquidCrystalIO.h>
#include <IoAbstractionWire.h>
#include <Wire.h>

Clockwise: 1) Funnel design for box, 2) Pockets for trapped kibble leading to jam when closing, 3) Internal circutry and wiring

Arduino board: Nano 33 IOT
- Since I used a board with the header pins setup for breadboard use, using the pinout diagram was helpful to see where I needed to put the connections
Code for the Bluetooth feature sampled from the offical Arduino tutorial
- Service is the Arduino with the servo activation boolean (0 for closed, anything else for open) as the characteristic
Code for automatic time activation feature sampled from offical Arduino tutorial about the internal RTC of the board
- Thread that led me to the idea of using RTC
- To keep the RTC in sync with real-world time, the code connected via WiFi to an NTP server and updates the RTC - idea taken from this thread, library with examples, tutorial article for Nano 33 IOT
  - It uses the RTCZero library’s set* methods
Connecting servo motors
- Orange signal pin must wired to a PWM pin
- Used the Sweep example with for loops for the open/close motion