Isolated dmx board
About the Isolated dmx board
Isolated dmx board is an open source PCB design by tmpeh, published on GitHub under the CERN-OHL-P-2.0 license. It is a 2-layer board measuring 55.7 × 60 mm, with 19 components from 12 distinct parts.
Other key parts include the B0505S-1WR3, MAX485E and ADUM1201AR. By type, the board carries 6 capacitors, 5 connectors, 4 ICs, 2 diodes and 2 resistors.
From the project
A compact and galvanically isolated interface board for DMX-512 (RS-485) applications using standard 3-Pin XLR jacks or JST-XH 2.50 mm headers. The board enables transmitting and receiving DMX signals via microcontrollers (e.g., ESP32, Arduino, Raspberry Pi, RP2040, and others) w
A compact and galvanically isolated interface board for DMX-512 (RS-485) applications using standard 3-Pin XLR jacks or JST-XH 2.50 mm headers. The board enables transmitting and receiving DMX signals via microcontrollers (e.g., ESP32, Arduino, Raspberry Pi, RP2040, and others) while completely protecting host logic from ground loops, power surges, and potential differences.
Main components on the Isolated dmx board
Isolated dmx board bill of materials (BOM)
19 components, 12 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | B0505S-1WR3 B0505S-1WR3_C7465178 EVISUN(易成) | PWRM-TH_B0505S-1WR3 | U4 |
| 2 | MAX485E | SOIC-8_3.9x4.9mm_P1.27mm | U6, U7 |
| 1 | ADUM1201AR ADuM1201AR | SOIC-8_3.9x4.9mm_P1.27mm | U9 |
| 1 | CONN_01X03_SOCKET Conn_01x03_Socket | Jack_XLR_Neutrik_NC3MAAH_Horizontal | J1 |
| 1 | CONN_01X03_SOCKET Conn_01x03_Socket | Jack_XLR_Neutrik_NC3FAAH_Horizontal | J2 |
| 1 | CONN_01X04_PIN Conn_01x04_Pin | JST_XH_B4B-XH-AM_1x04_P2.50mm_Vertical | J3 |
| 2 | CONN_01X03_PIN Conn_01x03_Pin | JST_XH_B3B-XH-AM_1x03_P2.50mm_Vertical | J4, J5 |
| 2 | SM712_SOT23 | SOT-23 | D1, D2 |
| 4 | 100NF 100nF | C_0603_1608Metric | C1, C3, C4, C5 |
| 1 | 4.7UF 4.7uF | C_0603_1608Metric | C8 |
| 1 | 10UF 10uF | C_0603_1608Metric | C9 |
| 2 | 10K 10k | R_0603_1608Metric | R1, R2 |
Isolated dmx board design files
The KiCad project lives in the tmpeh/isolated-dmx-board repository on GitHub; these links point at the commit this page was built from.
- LayoutDMX Board.kicad_pcb
- SchematicDMX Board.kicad_sch
- BOMproduction/bom.csv
Isolated dmx board: common questions
How big is the Isolated dmx board?
The Isolated dmx board measures 55.7 × 60 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Isolated dmx board?
19 components, from 12 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 Isolated dmx board design files?
From the tmpeh/isolated-dmx-board 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 Isolated dmx board design in my own project?
Yes, under the terms of its CERN-OHL-P-2.0 license, which tmpeh chose for the repository.