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2 layers66.4 × 90.9 mmDMX2SGM, the printed circuit board in 3D

DMX512 to SGM256 Converter

Size
66.4 × 90.9 mm
Copper layers
2
Thickness
1.6 mm
Parts
32
Nets
37
Pads
133
Tracks, vias
179, 8
Pours
3
Routed
Yes
KiCad
KiCad 5 (file 20171130)
Created
18 Apr 2020
Updated
24 Jul 2022

Overview

DMX2SGM is an open-source printed circuit board by Gabse, from the Gabse/DMX2SGM repository on GitHub. It is a 2-layer board of 66.4 × 90.9 mm with 32 parts on 37 nets, routed with 179 tracks and 8 vias.

It is built around the ATTINY1634-SU, REE-0505S and 74HC14, with the BD09AV among its other parts. Its parts include 9 capacitors, 6 ICs, 5 resistors, 5 connectors and 3 diodes. It belongs with the AVR (ATmega, ATtiny) boards of this library.

Main components

4

README

README.md

DMX2SGM

DMX512 to Dual SGM256 Converter

license language

This simple device converts a standard DMX512 Signal into two SGM256 signals.

It lets you reuse your old SGM gear with almost any standard DMX controller on the market.

The device has 2 independent outputs for DMX channel 1 to 256 and 257 to 512 and can be powered by ether one of them.

Due to its small form factor it can be installed nearly anywhere in the SGM signal path replacing old SGM Regia lighting desks directly.

9 Dip Swithes let you set a DMX start address, making it easy to expand existing DMX universes.

The opto-isolated input helps you avoiding ground loops between the DMX and the SGM side.

Please also visit my Blog Post for additional information.

Safety information / disclaimer:

This device SHOULD NOT be used with anything safety related. It is only meant to control dimmer packs and other lighting fixtures. It is not allowed to be used with moving stage parts, pyros and similar SFX. Doing so will happen at your OWN RISK!

Parts

32
QtyValueFootprintReferences
4100nCapacitor_THT:C_Disc_D3.0mm_W1.6mm_P2.50mmC1, C3, C6, C9
4390RResistor_THT:R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_HorizontalR2, R3, R4, R5
4Conn_01x03Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_VerticalJ2, J3, J4, J5
21N4007Diode_THT:D_DO-15_P12.70mm_HorizontalD2, D3
222pCapacitor_THT:C_Disc_D3.0mm_W1.6mm_P2.50mmC2, C4
2B59990C0120A07Varistor:RV_Disc_D7mm_W3.4mm_P5mmTH1, TH2
1100nCapacitor_THT:C_Disc_D3.0mm_W2.0mm_P2.50mmC7
110µCapacitor_THT:CP_Radial_D6.3mm_P2.50mmC5
112MHzCrystal:Crystal_HC49-4H_VerticalY1
11µCapacitor_THT:CP_Radial_D6.3mm_P2.50mmC8
12K2Resistor_THT:R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_HorizontalR1
1485Package_DIP:DIP-8_W7.62mm_Socket_LongPadsU2
16N137Package_DIP:DIP-8_W7.62mm_Socket_LongPadsU3
174HC14Package_DIP:DIP-14_W7.62mm_Socket_LongPadsU5
17805Package_TO_SOT_THT:TO-220-3_VerticalU6
1ATtiny1634Housings_SOIC:SOIC-20W_7.5x12.8mm_Pitch1.27mmU1
1AVR-ISP-6Connector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_VerticalJ1
1BD09AVmanuf:BD09AVSW1
1LEDLED_THT:LED_D5.0mmD1
1REE-0505Smanuf:RECOM-REE-0505SU4

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Questions

How big is the DMX2SGM PCB?

It measures 66.4 × 90.9 mm and has 2 copper layers, 1.6 mm thick.

What parts does the DMX2SGM use?

32 parts, built around the ATTINY1634-SU, REE-0505S, 74HC14 and BD09AV. 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 DMX2SGM KiCad files?

From the Gabse/DMX2SGM repository on GitHub, at the commit this page was made from: the board is Layout/DMX2SGM.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.

Can I use the DMX2SGM design in my own project?

Its repository states no licence, so its author keeps all rights: ask Gabse before reusing the design.