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PAMI Stepper

Rami-Troudi·Electrique-Eurobot-IEEE-INSAT-2026·PAMIS/PAMI Stepper/PAMI Stepper.kicad_pcb

PAMI Stepper PCB layout, top view — open source ESP32 board by Rami-Troudi

About the PAMI Stepper PCB

PAMI Stepper is an open source ESP32 PCB design by Rami-Troudi, published on GitHub. It is a 2-layer board measuring 120.8 × 70.1 mm, with 31 components from 24 distinct parts.

Its main chip is the ESP32_DevKit_V1_DOIT_30GPIOs, from the ESP32 family. Other key parts include the LM2596S-5 and Pololu_Breakout_DRV8825. By type, the board carries 8 resistors, 7 connectors, 5 diodes, 5 capacitors, 2 modules and 1 IC.

It belongs with the robotics & motion designs in this gallery.

From the project

Repo for my electrical work for the Eurobot competition

Main components on the PAMI Stepper

LM2596S-5Pololu_Breakout_DRV8825ESP32_DevKit_V1_DOIT_30GPIOs

PAMI Stepper bill of materials (BOM)

31 components, 24 distinct parts.

QtyPartRefs
1
LM2596S-5
U1
1
Pololu_Breakout_DRV8825
A1
1
ESP32_DevKit_V1_DOIT_30GPIOs
A3
1
IRF4905
Q2
1
1-0301FBV0T
XT60-M
TAD
J1
1
Switch
J2
1
Motor Switch
J3
1
1-0301FBV0T
Servo Connector
TAD
J4
1
Jack
J5
1
ToF
J6
1
Stepper connector
J8
1
3k
e1
1
1N5822
D1
1
BZV55B10
D2
3
LED
D3, D4, D5
1
33u
L1
1
680u
C1
2
220u
C2, C3
1
470u
C9
1
100n
C10
Show 4 more
QtyPartRefs
2
3.3k
R1, R2
2
1k
R3, R4
3
10k
R5, R6, R7
1
10K
R22

PAMI Stepper design files

The KiCad project lives in the Rami-Troudi/Electrique-Eurobot-IEEE-INSAT-2026 repository on GitHub; these links point at the commit this page was built from.

PAMI Stepper: common questions

What microcontroller does the PAMI Stepper use?

The PAMI Stepper is built around the ESP32_DevKit_V1_DOIT_30GPIOs, from the ESP32 family.

How big is the PAMI Stepper PCB?

The PAMI Stepper measures 120.8 × 70.1 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the PAMI Stepper?

31 components, from 24 distinct parts. The full bill of materials is listed on this page.

Where can I download the PAMI Stepper design files?

From the Rami-Troudi/Electrique-Eurobot-IEEE-INSAT-2026 repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the PAMI Stepper design in my own project?

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

Can I test firmware for the PAMI Stepper 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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