IoT-Shield Firmware

Arduino library to support the IoT shield used in workshops and hardware courses at Leipzig University.

Features

• Typesafe abstractions of LEDs, buttons, sensors etc.
• Powerful scheduler for executing tasks at specific times
• Support for playing tones and melodies using a buzzer
• Read temperature and (averaged) brightness values
• Seven segment library with support for (selected) characters

Installation

Copy the complete repository folder into your Arduino library path (eg. $HOME/Arduino/libraries/).

Example

#include <ParkingShield.h>
#include <Scheduler.h>

class RedAlert : public Task {
    public:
        RedAlert(ParkingShield& shield) : shield(shield) {}
        void update() {
            shield.setLed(ParkingShield::RED_LED, enabled);
            enabled = !enabled;
        }

    private:
        ParkingShield& shield;
        bool enabled;
};

Scheduler scheduler;
ParkingShield shield;
RedAlert alert(shield);

void setup() {
    shield.setRepeatInterval(0); // no button cooldown phase

    // toggle red led every half sec and play march after 8 secs
    scheduler.addTask(&alert, 500, true);
    scheduler.addTask([] { shield.playMarch(); }, 8000);
}

void loop() {
    scheduler.scheduleTasks();

    // light up the green led iff button 1 is pressed
    shield.setLed(ParkingShield::GREEN_LED, shield.buttonS1Pressed());
}

The examples folder contains more exmaples and also some small projects (like the SmartParkinglot).