MHCI-Fader
About the MHCI-Fader PCB
MHCI-Fader is an open source ESP32 PCB design by About-Time-Technologies, published on GitHub. It is a 2-layer board measuring 107.5 × 20 mm, with 28 components from 20 distinct parts.
Its main chip is the ESP-32-S3-Zero - SMD, from the ESP32 family. Other key parts include the SRV05-4, TXB0102DCU and TJA1051T-3. By type, the board carries 10 resistors, 8 capacitors, 4 ICs, 2 jumpers, 1 connector and 1 switch.
From the project
Modular Hardware Control Interface - Components for the Events Industry
Main components on the MHCI-Fader
MHCI-Fader bill of materials (BOM)
28 components, 20 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ~ | ESP-32-S3-Zero - SMD | U2 |
| 1 | SRV05-4 | SOT-23-6 | U3 |
| 1 | TXB0102DCU | VSSOP-8_2.3x2mm_P0.5mm | U4 |
| 1 | TJA1051T-3 | SOIC-8_3.9x4.9mm_P1.27mm | U5 |
| 1 | Conn_01x06 | PinHeader_1x06_P2.54mm_Vertical | J1 |
| 2 | Jumper_2_Open | SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP1, JP2 |
| 1 | TBA1-0510 | CONV_TBA1-0510 | PS1 |
| 1 | SW_Push_LED | SP86N_AB Switch | SW1 |
| 1 | FerriteBead | D_0805_2012Metric | FB1 |
| 3 | 100nF | C_0402_1005Metric | C1, C5, C7 |
| 2 | 30pF | C_0402_1005Metric | C2, C8 |
| 1 | 10uF | C_0603_1608Metric | C3 |
| 1 | 1uF | C_0402_1005Metric | C4 |
| 1 | 1u | C_0402_1005Metric | C6 |
| 1 | ~ | Linear Potentiometer LED 60mm | R1 |
| 3 | 220R | R_0402_1005Metric | R2, R3, R4 |
| 2 | 4K7 | R_0603_1608Metric | R5, R6 |
| 1 | 10K | R_0402_1005Metric | R7 |
| 1 | 120R | R_0402_1005Metric | R8 |
| 2 | 0R | R_0402_1005Metric | R9, R10 |
MHCI-Fader 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-Fader: common questions
What microcontroller does the MHCI-Fader use?
The MHCI-Fader is built around the ESP-32-S3-Zero - SMD, from the ESP32 family.
How big is the MHCI-Fader PCB?
The MHCI-Fader measures 107.5 × 20 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the MHCI-Fader?
28 components, from 20 distinct parts. The full bill of materials is listed on this page.
Where can I download the MHCI-Fader 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-Fader 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-Fader 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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