Project:Enhanced Door Bell

ProjectInfoBox Enhanced Door Bell
Status:	planned
Initiator:	Martin, Johannes
Team:	Martin, Johannes who else would like to help?
Materials Used:	Arduino
Tools Used:	3D Printer
Software Used:	undecided

Our Workshop is equipped with speakers in each room which can be controlled centrally. Issue #2 describes these speakers in a little bit more detail.
When discussing a proper usage of these speakers, we came up with the idea of building an enhanced door bell, which should be capable of playing custom sounds and be heard in each and every room.

Features

• Play MP3 Files
• Play sound in every room
• Custom bell button
• MQTT Control

Hardware

The door bell is based on a ESP32 and thus has integrated WiFi Control.
In order to play MP3 Files, we are using a MP3 shield based on the VS1053B.
The whole thing is powered by a 24V notebook power supply which is attached to the speaker cables.
It is enclosed in a custom casing.

Wiring

The VS1053 is attached to the ESP as follows:

VS1053 Pin	ESP Pin
5V	5V
GND	GND
DREQ	D13
X-CS	D5
X_DCS	RX2 (D16)
X_RESET	EN
CS	TX2 (D17)
MOSI	D23
MISO	D19
SCK	D18

Software

You can find the software over on GitHub.

In order to make the ESP32 work with the VS1053B board, we are using a fork of the Adafruit VS1053 Library.

In addition, we are using Paho as the MQTT Client of our choice.

Planned Features

• Integrate a Soundboard

Todos

• Test the code further
• Finalize MQTT control
• Decide on soundboard functionality

Needed

• Case for the soundboard
• Buttons for the soundboard