ldps-fm-radio-project

2020/21 submission for the second year lab project by team 18 - University of Surrey

By Sushant Misra, Awes Mubarak, Sara Pervez, Kareem Rifai, Robert Vasistha

This repository contains the files used to create an FM radio using an arduino nano and AR1010 module, with an LCD display and RTC timekeeping.

Features list

Section	Description	Achieved?
General	Power button to turn on/off device	✓
General	LED inside the case displays on/off state	✓
Radio	Outputs sound from a radio channel to aux	✓
Radio	Uses frequency change buttons to seek up and down from the set frequency	✓
Radio	Uses the memory buttons to Change to set frequency	✓
RTC	Persistently stores date and time after power off	✓
RTC	Uses the time change buttons to change the minute and hour	✓
RTC	Automatically sets the time and date to a sane value on initial startup	✓
Volume knob	Rotary encoder knob twists clockwise to increase volume and anticlockwise to decrease volume	✓
Volume knob	Rotary encoder pushes in to toggle mute mode	✓
LCD	Displays the date and time by default	✓
LCD	Displays the temperature, to the left most part of the second row	✓
LCD	Displays the raw frequency on the second row	✓
LCD	Updates the raw frequency to the station name after 2 seconds if available	✓
LCD	Changes the entire display to a volume bar for 2 seconds after each volume change	✓
Case	Made of 6 panels of acrylic plastic, 5 transparent and the bottom one tinted blue	✓
Case	All but the top piece are held together with acrylic glue	✓
Case	Components held in with strong adhesive, and not loose	✓

Usage guide

Turning on: the time will be set to the default value. Use the time set buttons on the back of the device to set the correct time.

Changing frequency: use the two preset memory buttons to change the frequency to EAGLE radio or BBC radio 4. Alternatively, use the two seek buttons to find the next available frequency in each direction.

Changing volume: use the volume knob to change the volume. Pressing the knob in will toggle the mute state.

Using the main display: look at the LCD for the the date and time, current frequency (updates to the channel name if available), the temperature, and the volume when it is updated.

Assembly guide

Required hardware:

AR1010
16x2 liquid crystal display
DS3231 RTC module
Arduino nano
Rotary encoder
6 push buttons
1 on/off toggle switch
battery holder for 4 AA batteries

Pin number layout:

Arduino pin number	Description
D5	Memory button 1
D6	Memory button 2
D7	Frequency up
D8	Frequency down
D9	Change minute
D10	Change hour

Circuit diagram:

Assemble the circuit shown above
Upload the code in this repository to the arduino
Create an approprate box and integrate the circuit

ldps-sem-2-group-7 / ldps-fm-radio-project Goto Github PK