HardLabs

MHCI-DMX

About-Time-Technologies·MHCI·DMX/MHCI-DMX/MHCI-DMX.kicad_pcb

MHCI-DMX PCB layout, top view — open source ESP32 board by About-Time-Technologies

About the MHCI-DMX PCB

MHCI-DMX is an open source ESP32 PCB design by About-Time-Technologies, published on GitHub. It is a 2-layer board measuring 79 × 90 mm, with 75 components from 38 distinct parts.

Its main chip is the ESP-32-S3-Tiny - PTH, from the ESP32 family. Other key parts include the SRV05-4, TXS0108EPW, TEC2-1210WI, TME-0505S and TSR_2-2450. By type, the board carries 21 connectors, 20 resistors, 11 ICs, 8 diodes, 6 jumpers and 6 capacitors.

From the project

Modular Hardware Control Interface - Components for the Events Industry

Main components on the MHCI-DMX

SRV05-4TXS0108EPWTEC2-1210WITME-0505STSR_2-2450TJA1051T-3TCA9517ADGK

MHCI-DMX bill of materials (BOM)

75 components, 38 distinct parts.

QtyPartRefs
2
SRV05-4
U1, U9
1
TXS0108EPW
U2
1
~
U3
1
TEC2-1210WI
U4
1
TME-0505S
U5
1
TSR_2-2450
U6
1
~
U7
1
~
U10
1
TJA1051T-3
U11
1
TCA9517ADGK
U12
1
PMOS
Q1
1
XLR_Male
J1
1
XLR5_Female
J2
2
Conn_01x02
J3, J19
5
Conn_01x04
J4, J7, J8, J16, J18
1
Conn_01x04
J5
1
Barrel_Jack_MountingPin
J6
2
Conn_01x03
J9, J20
6
Conn_01x02
J10, J11, J12, J13, J14, J15
1
Conn_01x08
J17
Show 18 more
QtyPartRefs
1
Conn_01x04
J21
6
Jumper_2_Open
JP1, JP2, JP3, JP4, JP7, JP8
1
G6K-2
K1
1
1N4148W
D1
4
D_TVS_Dual_AAC
D3, D4, D5, D6
3
RED
D11, D12, D13
1
FerriteBead
FB1
2
100nF
C1, C6
2
30pF
C2, C3
1
10uF
C4
1
1uF
C5
2
120R
R1, R9
2
0R
R2, R3
4
4K7
R4, R5, R10, R11
2
680R
R6, R7
1
100k
R8
3
680R
R14, R15, R16
6
1K
R17, R18, R19, R20, R21, R22

MHCI-DMX design files

The KiCad project lives in the About-Time-Technologies/MHCI repository on GitHub; these links point at the commit this page was built from.

MHCI-DMX: common questions

What microcontroller does the MHCI-DMX use?

The MHCI-DMX is built around the ESP-32-S3-Tiny - PTH, from the ESP32 family.

How big is the MHCI-DMX PCB?

The MHCI-DMX measures 79 × 90 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the MHCI-DMX?

75 components, from 38 distinct parts. The full bill of materials is listed on this page.

Where can I download the MHCI-DMX design files?

From the About-Time-Technologies/MHCI repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the MHCI-DMX design in my own project?

The repository has no license, so all rights stay with About-Time-Technologies. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the MHCI-DMX without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.

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