Build an Arduino Sketch

The task is to develop software for the control of a toaster using the Arduino kit.

The toaster has the following features:

- Start functioning/stop pushbutton.

- Toaster ON/OFF indication (LED)

- Toast lever sensor (pushbutton)

- Toast lever indicator (LED)

- Browning control (simulated through potentiometer), using 6 LEDs to

specify the time left.

- Smoke detector (simulated through potentiometer) and indicator (LED).

The following requirements regarding functioning of the toaster are given:

- Write a program so it waits for an ON/OFF switch to be pressed and turns on a

toaster ON/OFF LED.

- Following this, continue the program so it waits for the toast lever to be pressed

down (you may simulate this with a pushbutton) and turns ON a second LED.

- A POT is used to determine the time the toaster should be ON. For simulation

purposes, a full scale POT value, 1023, should correspond to a time of 6 seconds

(the user is expected to move the browning control to the desired setting).

- 6 LEDs will be flashing and displaying the time left in the cycle (6 LEDs ON if 6

seconds are left, then 5 and so on until all LEDs are OFF).

- Once the cycle has finished, the toast should be ejected so the toast lever

indicator should be OFF.

School of Engineering and the Environment. Coursework Assessment Brief. Page 3 of 10

- Smoke is measured with a photo sensor (simulated with a POT). An LED which

luminosity is proportional to the smoke detected, indicates the level of smoke. If

the smoke is higher than 80% full scale of the ADC, a smoke warning should be

indicated by flashing the LED and a playing a sound. The toast should then be

ejected (turning OFF the appropriate LEDs).

Skills: Arduino, Electronics, Microcontroller, Electrical Engineering, C Programming

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Project ID: #28148459