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2 layersTuer, the printed circuit board in 3D

Replace a door intercom system with a Raspberry Pi.

Copper layers
2
Thickness
1.6 mm
Parts
25
Nets
38
Pads
86
Tracks, vias
124, 34
Routed
Yes
KiCad
KiCad 4
Created
18 Nov 2017
Updated
11 Nov 2021

Overview

Tuer is an open-source printed circuit board by User65k, from the User65k/DoorBerryHat repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board with 25 parts on 38 nets, routed with 124 tracks and 34 vias.

It is built around the BD433. Its parts include 8 connectors, 5 resistors, 3 transistors, 2 capacitors and 1 switch.

Main components

1

README

README.md

DoorBerry

Use a Raspberry Pi as a VoIP door intercom system.

I use it with my FritzBox to alert all my DECT Phones. Tested on a Pi 2B+ and a Pi Zero with raspbian (and mono).

Software

Please find it here.

Hardware

All Files are creaded with KiCad.

Old Door system

The new System replaces the indoor part of a RITTO intercom system. The Door itself and the other appartments where not modified.

RITO Door bell

The old system had a fairly simple circut:

RITO Inside

Circut

New Door Intercom

The system is replaced by a Raspberry with a custum Hat (utilizing the GPIOs of the Pi). Bell and Buzzer can operate independently from the new system (in case of Network errors, Bugs, :speak_no_evil:).

Hat Buzzer

The switch (SW1) can open the door regardless of any errors in the Pi.

Hat Bell

The speaker (SP1) will notify about someone ringing the Bell independently from the Pi.

Hat Intercom

Parts

25
QtyValueFootprintReferences
210kResistors_ThroughHole:Resistor_Vertical_RM5mmR4, R5
210uFCapacitors_ThroughHole:C_Radial_D5_L6_P2.5C1, C2
2Q_PMOS_GDSPin_Headers:Pin_Header_Straight_1x03Q2, Q3
1263Resistors_ThroughHole:Resistor_Horizontal_RM15mmR1
156Resistors_ThroughHole:Resistor_Horizontal_RM10mmR2
156Resistors_ThroughHole:Resistor_Horizontal_RM15mmR3
1BD433Pin_Headers:Pin_Header_Straight_1x03Q1
1BlauPin_Headers:Pin_Header_Straight_1x01P2
1BraunPin_Headers:Pin_Header_Straight_1x01P3
1IsRingHousings_DIP:DIP-4_W7.62mmKB817
1OrangePin_Headers:Pin_Header_Straight_1x01P6
1Rasp17_36Socket_Strips:Socket_Strip_Straight_2x10P1
1RotPin_Headers:Pin_Header_Straight_1x01P5
1SPEAKERBuzzers_Beepers:BUZZERSP1
1SWOpenDoorHousings_DIP:DIP-6_W7.62mm4N32
1SWRotHousings_DIP:DIP-6_W7.62mm4N32_2
1SWWeisHousings_DIP:DIP-6_W7.62mm4N32_3
1SW_PUSHButtons_Switches_ThroughHole:SW_PUSHSW1
1Sound OutConnect:BARREL_JACKCON1
1Speach InConnect:BARREL_JACKCON2
1WeisPin_Headers:Pin_Header_Straight_1x01P4
1isOpenHousings_DIP:DIP-6_W7.62mm4N2x1

Questions

What parts does the Tuer use?

25 parts, built around the BD433. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.

Where can I download the Tuer KiCad files?

From the User65k/DoorBerryHat repository on GitHub, at the commit this page was made from: the board is Tuer.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.

Can I use the Tuer design in my own project?

Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).

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