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GalvOS Laser Controller V2

Andre1Becker·GalvOS·hardware/schematics/Laser Controllerv2_only_for_pcb_test.kicad_pcb

GalvOS Laser Controller V2 PCB layout, top view — open source ESP32 board by Andre1Becker
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About the GalvOS Laser Controller V2 PCB

GalvOS Laser Controller V2 is an open source ESP32 PCB design by Andre1Becker, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 175 × 115 mm, with 122 components from 55 distinct parts.

Its main chip is the ESP32-S3-N16R8-DevKit, from the ESP32 family. Other key parts include the DAC8562SDGST, TTL_RGB Blue, TTL_RGB Red, TTL_RGB Green and DS18B20 connector. By type, the board carries 29 resistors, 15 ICs, 9 capacitors, 7 connectors, 2 diodes and 2 inductors.

It belongs with the iot & wireless and sensors designs in this gallery.

From the project

Open-source ESP32-S3 laser show controller — built to replace proprietary OEM controllers in RGB galvo laser projectors

This is a BETA Project ATM. You have been warned. Especially the hardware design and schematics are - let's say - creatively cobbled together. If you know how to improve them, feel free to open a pull request!

GalvOS replaces the original control board of an RGB galvo laser projector (specifically the Mikoy 5W) with an ESP32-S3-based system. The result is a firmware platform that is more capable, fully open, and frankly more fun to work with than whatever the OEM shipped.

GalvOS Laser Controller V2, from the project README
From the project README

Main components on the GalvOS Laser Controller V2

ESP32-S3-N16R8-DevKitDAC8562SDGSTTTL_RGB BlueTTL_RGB RedTTL_RGB GreenDS18B20 connectorOPA4134UA_2K5Galvo Input6N137

GalvOS Laser Controller V2 bill of materials (BOM)

122 components, 55 distinct parts.

QtyPartRefs
1
ESP32-S3-N16R8-DevKit
U1
1
DAC8562SDGST
U2
1
TTL_RGB Blue
U3
1
TTL_RGB Red
U4
1
TTL_RGB Green
U5
5
DS18B20 connector
U6, U7, U8, U9, U10
1
OPA4134UA_2K5
U12
1
Galvo Input
U13
3
6N137
U15, U16, U17
1
SD Card Module (6-pin, 2.54mm)
J1
1
12.6V IN (BUCK)
J2
1
PWR IN Galvo
J3
1
FAN1 12V IN
J4
1
FAN1
J5
1
FAN2 12V IN
J6
1
FAN2
J7
1
10uF
C_ANA1
11
100nF
C_ANA2, C_BOOT1, C_DACLVA1, C_DACLVB1, C_DMXLV1, C_SCANLV1, C_SCANVCC1, C_SCANX1 +3
2
10uF
C_IN1, C_IN2
1
220nF
C_INHF1
Show 35 more
QtyPartRefs
2
22uF
C_OUT1, C_OUT2
3
10nF
C_SCANCONT1, C_SCANT1, C_WDCONT1
1
1nF
C_TRIGC_WD1
1
1uF
C_VCC1
2
1N4148W-7-F
1N4148W
Diodes Incorporated
D_TRIGCL_SCAN1, D_TRIGCL_WD1
1
DMX MAX485
J_DMX1
1
E-STOP
J_ESTOP1
1
SSR1 CTRL
J_SSR1
4
22
R_DACCLR1, R_DACDIN1, R_DACSCLK1, R_DACSYNC1
12
10k
R_DACCLRA1, R_DACDINA1, R_DACDINB1, R_DACSCLKA1, R_DACSCLKB1, R_DACSYNCA1, R_DACSYNCB1, R_DACUNUSED1 +4
1
63.4k 1%
R_EN1
1
10k 1%
R_EN2
1
100k 1%
R_FB1
1
24.9k 1%
R_FB2
1
1.8M
R_SCANT1
1
330
R_SSRCTRL1
1
910k 1%
R_WD1
1
LMR33630ADDA
U_BUCK1
1
SN74LVC8T245PWR
Texas Instruments
U_DACLV1
2
SN74LVC1G17DBVR
Texas Instruments
U_DMXLV1, U_SCANLV1
2
NE555D
U_SCAN1, U_WD1
2
0
X_NODE1, Y_NODE1
1
1N5819
D1
1
1N5822
D2
1
BLM18PG221SN1
FB1
1
6.8uH
L1
7
100nF
C1, C2, C5, C6, C7, C8, C9
2
1nF
C3, C4
3
220
R1, R2, R4
8
10K
R3, R7, R10, R14, R15, R27, R28, R29
3
4.7k
R5, R30, R31
4
100
R6, R11, R13, R16
4
22k
R9, R12, R17, R25
6
1k
R18, R19, R20, R21, R22, R23
1
0
R26

GalvOS Laser Controller V2 design files

The KiCad project lives in the Andre1Becker/GalvOS repository on GitHub; these links point at the commit this page was built from.

GalvOS Laser Controller V2: common questions

What microcontroller does the GalvOS Laser Controller V2 use?

The GalvOS Laser Controller V2 is built around the ESP32-S3-N16R8-DevKit, from the ESP32 family.

How big is the GalvOS Laser Controller V2 PCB?

The GalvOS Laser Controller V2 measures 175 × 115 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the GalvOS Laser Controller V2?

122 components, from 55 distinct parts. The full bill of materials is listed on this page.

Where can I download the GalvOS Laser Controller V2 design files?

From the Andre1Becker/GalvOS repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the GalvOS Laser Controller V2 design in my own project?

Yes, under the terms of its GPL-3.0 license, which Andre1Becker chose for the repository.

Can I test firmware for the GalvOS Laser Controller V2 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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