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RetroCom Station2

SamyIOoOI·RetroCom·KiCad_PCB_Source/RetroCom_Station2/RetroCom_Station2.kicad_pcb

RetroCom Station2 PCB layout, top view — open source board by SamyIOoOI
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About the RetroCom Station2 PCB

RetroCom Station2 is an open source PCB design by SamyIOoOI, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 130 × 80 mm, with 59 components from 41 distinct parts.

Other key parts include the MAX485E, TL072, LM386, uA7805 and ICL7660. By type, the board carries 18 capacitors, 16 resistors, 8 ICs, 5 switches, 4 diodes and 1 transistor.

It belongs with the retro computing designs in this gallery.

From the project

A 4-Station one-to-one two-way INTERCOM built around the AT89C52-PI24 RetroMCU (8051 Core).

- AT89C52-PI24 MCU per Station. [Handles Interstation Communication & Interface]. - Supports two-way simultaneous speech. No taking turns when talking. RetroCom functions just like a phonecall. - All stations are connected to main station directly via CAT6 Cables. Distances of 20M (Meters) to 30M are OK . - Switching is done by CD4051 & CD4052 ICs powered with negative & postive 5 V Rails. PreAmped Signals face no distortion. - Audio undergoes a preamp stage under the TL072 & power amp stage under the LM386. - The main station has a built in Radio Module. [As of Version 1.0 [WIRED] the radio…

RetroCom Station2, from the project README
From the project README

Main components on the RetroCom Station2

MAX485ETL072LM386uA7805ICL7660AT89C55WD-24PUCD4051B

RetroCom Station2 bill of materials (BOM)

59 components, 41 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
MAX485E
U1
1
TL072
U2
1
LM386
U3
1
uA7805
U5
1
ICL7660
U6
1
AT89C55WD-24PU
U7
1
CD4051B
U8
1
~
U9
1
S8050
Q3
1
Station 2 Cable [Ethernet]
J1
1
Mic Volume Control
10K1
1
Y1
11.0592MHz1
1
Buzzer
BZ1
1
Station 2 Speaker
LS1
1
Microphone
MK2
1
Volume Control Station 2
RV1
1
Speaker Switch
SW1
1
Call Button
SW2
1
Hang Button
SW3
1
Scroll Button
SW4
Show 21 more
QtyPartRefs
1
POWER_SWITCH
SW22
1
Orange Speaker Switch LED
D1
1
Yellow Hold LED
D2
1
Green Call LED
D3
1
Red Power LED
D4
6
0.1 uF
C1, C10, C12, C14, C17, C26
2
100 nF
C2, C5
3
10 uF
C3, C15, C16
3
47 uF
C4, C6, C9
2
33pF
C7, C8
1
220 uF
C11
1
4700 uF
C13
1
100k
R1
1
47k
R2
5
10K
R3, R6, R7, R14, R15
1
10
R4
1
2.2K
R5
1
220K
R8
1
47
R9
4
470
R10, R11, R12, R13
1
4.7K
R16

RetroCom Station2 design files

The KiCad project lives in the SamyIOoOI/RetroCom repository on GitHub; these links point at the commit this page was built from.

RetroCom Station2: common questions

How big is the RetroCom Station2 PCB?

The RetroCom Station2 measures 130 × 80 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the RetroCom Station2?

59 components, from 41 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the RetroCom Station2 design files?

From the SamyIOoOI/RetroCom repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the RetroCom Station2 design in my own project?

Yes, under the terms of its GPL-3.0 license, which SamyIOoOI chose for the repository.

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