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Esp32PrinterController

MitchBradley·Esp32PrinterController

Esp32PrinterController PCB layout, top view — open source ESP32 board by MitchBradley
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About the Esp32PrinterController PCB

Esp32PrinterController is an open source ESP32 PCB design by MitchBradley, published on GitHub under the MIT license. It is a 2-layer board measuring 157.5 × 97.8 mm, with 70 components from 46 distinct parts.

Its main chip is the ESP32-DEVKITC-32D, from the ESP32 family. Other key parts include the DcStepDown_LM2596, 74AHCT595, ULN2803A, WeMos_D1_mini_SD_Shield and DRIVER_X. By type, the board carries 21 connectors, 21 capacitors, 11 resistors, 6 ICs, 4 modules and 3 diodes.

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

From the project

PCB design for 3D printer controller using ESP32 processor

This is based on https://github.com/felixstorm/CrealityEnder3ESP32Board.git with the following changes

- Laid out for 2-sided PCB fabrication instead of PCB routing. 2-sided PCBs are available at very low cost from various prototyping shops, and provide much better grounding and power distribution. - Can use either Pololu stepper driver modules or external drivers, selected by solder jumpers. - The microstepping ratio can be selected by solder jumpers, or those pins can be connected to SPI for fine-grained configuration of TMC modules. The X Y and Z axes all use the same microstepping/SPI…

Esp32PrinterController, from the project README
From the project README

Main components on the Esp32PrinterController

ESP32-DEVKITC-32DDcStepDown_LM259674AHCT595ULN2803AWeMos_D1_mini_SD_ShieldDRIVER_XDRIVER_YDRIVER_ZDRIVER_E

Esp32PrinterController bill of materials (BOM)

70 components, 46 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ESP32-DEVKITC-32D
U1
1
DcStepDown_LM2596
U2
2
74AHCT595
U3, U4
1
ULN2803A
U5
1
WeMos_D1_mini_SD_Shield
U6
1
DRIVER_X
A1
1
DRIVER_Y
A2
1
DRIVER_Z
A3
1
DRIVER_E
A4
1
IRLZ44N
Q1
1
IRLB8743
Q2
1
-24V IN+
J1
1
MOT E
J5
1
MOT E
J6
1
+NOZ-
J10
1
+BED-
J11
1
+FAN1-
J12
1
+FAN2-
J13
1
+FAN3-
J14
1
+BT-
J20
Show 26 more
QtyPartRefs
1
+NT-
J21
1
MOT Y
J23
1
MOT Z
J24
1
MOT X
J25
1
MOT Y
J26
1
MOT Z
J27
1
+XM-
J30
1
+YM-
J31
1
+ZM-
J32
1
LCD
J40
1
BLTouch
J60
1
MOT X
J110
1
3A REM
F1
1
10A BED
F2
1
1N5819
D1
1
NOZ
D2
1
BED
D3
5
100uF
C1, C5, C6, C7, C110
13
0.1uF
C2, C4, C8, C9, C10, C11, C21, C23 +5
1
100uF
C3
2
4.7uF
C20, C22
2
10
R10, R15
2
100k
R11, R16
2
2.2k
R12, R17
2
4.7k
R20, R22
3
10k
R30, R31, R32

Esp32PrinterController design files

The KiCad project lives in the MitchBradley/Esp32PrinterController repository on GitHub; these links point at the commit this page was built from.

Esp32PrinterController: common questions

What microcontroller does the Esp32PrinterController use?

The Esp32PrinterController is built around the ESP32-DEVKITC-32D, from the ESP32 family.

How big is the Esp32PrinterController PCB?

The Esp32PrinterController measures 157.5 × 97.8 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Esp32PrinterController?

70 components, from 46 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 Esp32PrinterController design files?

From the MitchBradley/Esp32PrinterController repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the Esp32PrinterController design in my own project?

Yes, under the terms of its MIT license, which MitchBradley chose for the repository.

Can I test firmware for the Esp32PrinterController 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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