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Hardwareddc aux mitm

TeaRex-coder·hardwareddc·experiments/hardwareddc-aux-mitm/hardwareddc-aux-mitm.kicad_pcb

Hardwareddc aux mitm PCB layout, top view — open source RP2040/RP2350 board by TeaRex-coder

About the Hardwareddc aux mitm PCB

Hardwareddc aux mitm is an open source RP2040/RP2350 PCB design by TeaRex-coder, published on GitHub under the BSD-3-Clause license. It is a 4-layer board measuring 54.3 × 90 mm, with 45 components from 22 distinct parts.

Its main chip is the RaspberryPi_Pico, from the RP2040/RP2350 family. Other key parts include the SN65MLVD200AD and AMS1117-3.3. By type, the board carries 22 resistors, 11 capacitors, 7 connectors, 3 ICs, 1 module and 1 diode.

From the project

a custom PCB that makes adjusting monitor settings easy and convenient

I do a lot of work behind the scene to learn about DDC-related tech. In this directory, I want to share some of my fun HardwareDDC experiments.

This board uses the PTN3392 DisplayPort to VGA IC to convert DP Aux into i2c

- This solution is jank and pretty unstable - Next time, I'll try using TI's M-LVDS transceivers to interact with the Aux channel

This board attempts to "sniff" the DisplayPort auxiliary channel using TI's SN65MLVD200AD.

Main components on the Hardwareddc aux mitm

SN65MLVD200ADAMS1117-3.3RaspberryPi_Pico

Hardwareddc aux mitm bill of materials (BOM)

45 components, 22 distinct parts — part numbers from the project's BOM.

QtyPartRefs
2
SN65MLVD200AD
U1, U2
1
AMS1117-3.3
U3
1
RaspberryPi_Pico
A1
2
47272-0001
J1, J4
1
HDMI_A
J5
1
USB_C_RECEPTACLE_USB2.0_16P
USB_C_Receptacle_USB2.0_16P
J6
1
CONN_02X02_ODD_EVEN
Conn_02x02_Odd_Even
J7
1
CONN_02X04_ODD_EVEN
Conn_02x04_Odd_Even
J8
1
Conn_01x03_Pin
J9
1
D_TVS
D1
6
100N
100n
C1, C3, C4, C5, C8, C9
2
1n
C2, C6
2
10UF
10uF
C7, C10
1
100NF
100nF
C11
2
10K
10k
R1, R8
2
3K3
R2, R9
2
1K5
R3, R10
4
51
R4, R5, R11, R12
2
100K
R6, R7
2
1M
R13, R14
Show 2 more
QtyPartRefs
6
0
R15, R16, R17, R18, R19, R20
2
5K1
R21, R22

Hardwareddc aux mitm design files

The KiCad project lives in the TeaRex-coder/hardwareddc repository on GitHub; these links point at the commit this page was built from.

Hardwareddc aux mitm: common questions

What microcontroller does the Hardwareddc aux mitm use?

The Hardwareddc aux mitm is built around the RaspberryPi_Pico, from the RP2040/RP2350 family.

How big is the Hardwareddc aux mitm PCB?

The Hardwareddc aux mitm measures 54.3 × 90 mm, has 4 copper layers and is 0.54 mm thick.

How many components are on the Hardwareddc aux mitm?

45 components, from 22 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 Hardwareddc aux mitm design files?

From the TeaRex-coder/hardwareddc 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 Hardwareddc aux mitm design in my own project?

Yes, under the terms of its BSD-3-Clause license, which TeaRex-coder chose for the repository.

Can I test firmware for the Hardwareddc aux mitm without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RP2040/RP2350 firmware against it before you order a PCB.

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