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Openrz67-trigger

openrz67·openrz67-trigger·pcb/kicad/openrz67.kicad_pcb

Openrz67-trigger PCB layout, top view — open source ESP32 board by openrz67
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About the Openrz67-trigger PCB

Openrz67-trigger is an open source ESP32 PCB design by openrz67, published on GitHub under the MIT license. It is a 2-layer board measuring 48 × 22 mm, with 59 components from 34 distinct parts.

Its main chip is the ESP32-C3FH4, from the ESP32 family. Other key parts include the TPS63031DSKR, BQ25185DLHR, C157925, TLP172AM and C88374. By type, the board carries 22 capacitors, 17 resistors, 6 ICs, 3 switches, 3 inductors and 2 crystals.

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

From the project

Bluetooth remote release for the Mamiya RZ67: ESP32-C3 firmware, KiCad PCB and enclosure. Shutter, bulb and countdown from your phone.

KiCad 10 project for the OpenRZ67 trigger board (48 × 22 mm, 2 layers, ESP32-C3, two TLP172AM PhotoMOS relays, BQ25185 charger + TPS63031 buck-boost). This is now the source; the EasyEDA Pro project it was ported from is archived in ../archive/easyeda/ (v2 .epro and v3 .epro2); each fabricated revision's upload package is in ../archive/-rev/ (rev 1 2025-09-23, rev 2 2026-09-07).

Main components on the Openrz67-trigger

ESP32-C3FH4TPS63031DSKRBQ25185DLHRC157925TLP172AMC88374

Openrz67-trigger bill of materials (BOM)

59 components, 34 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ESP32-C3FH4
ESPRESSIF(乐鑫)
U1
1
TPS63031DSKR
Texas Instruments
U2
1
BQ25185DLHR
Texas Instruments
U3
1
C157925
S4B-XH-A(LF)(SN)
JST
U4
2
TLP172AM
TOSHIBA(东芝)
U5, U6
1
C88374
U.FL-R-SMT-1(80)
HRS(广濑)
A1
1
AO3401A
Alpha & Omega Semicon
Q3
1
T201640MFBDE2X
40MHz
YJX(雅晶鑫)
X1
1
XKXGI-SUA-32.768K
32.768kHz
YXC(扬兴晶振)
X2
1
C131337
B2B-PH-K-S(LF)(SN)
JST
BAT1
2
B3U-1000P
OMRON(欧姆龙)
S1, S2
1
C131337
B2B-PH-K-S(LF)(SN)
JST
S3
1
C2765186
TYPE-C 16PIN 2MD(073)
SHOU HAN(首韩)
USB1
1
KT-0603R
KENTO
D3
1
XL-1608UBC-04
XINGLIGHT(成兴光)
D4
1
LQG15HS3N9S02D
3.9nH
muRata(村田)
L1
1
BLM15AG601SN1D
muRata(村田)
L2
1
SPM6530T-2R2M
2.2uH
TDK
L3
2
CC0402CRNPO9BN1R0
1pF
YAGEO(国巨)
C1, C2
7
GRM155R71H104KE14D
100nF
muRata(村田)
C3, C4, C5, C6, C7, C25, C32
Show 14 more
QtyPartRefs
2
GJM1555C1H150FB01D
15pF
muRata(村田)
C8, C9
3
CL10A105KB8NNNC
1uF
Samsung Electro-Mechanics
C14, C26, C29
6
CL10A106MA8NRNC
10uF
SAMSUNG(三星)
C15, C20, C21, C22, C23, C24
2
GRM1555C1H180FA01D
18pF
muRata(村田)
C30, C31
2
0402WGF220JTCE
22Ω
UNI-ROYAL(厚声)
R4, R5
4
0402WGF1002TCE
10kΩ
UNI-ROYAL(厚声)
R6, R7, R8, R23
2
0402WGF5101TCE
5.1kΩ
UNI-ROYAL(厚声)
R9, R10
1
0402WGF2701TCE
2.7kΩ
UNI-ROYAL(厚声)
R11
1
0402WGF1802TCE
18kΩ
UNI-ROYAL(厚声)
R13
1
NCP18XH103F03RB
muRata(村田)
R16
1
FRC0402F3001TS
3kΩ
FOJAN
R18
1
0402WGF1001TCE
1kΩ
UNI-ROYAL(厚声)
R20
2
0402WGF1500TCE
150Ω
UNI-ROYAL(厚声)
R21, R22
2
0402WGF1004TCE
1MΩ
UNI-ROYAL(厚声)
R24, R25

Openrz67-trigger design files

The KiCad project lives in the openrz67/openrz67-trigger repository on GitHub; these links point at the commit this page was built from.

Openrz67-trigger: common questions

What microcontroller does the Openrz67-trigger use?

The Openrz67-trigger is built around the ESP32-C3FH4, from the ESP32 family.

How big is the Openrz67-trigger PCB?

The Openrz67-trigger measures 48 × 22 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Openrz67-trigger?

59 components, from 34 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 Openrz67-trigger design files?

From the openrz67/openrz67-trigger 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 Openrz67-trigger design in my own project?

Yes, under the terms of its MIT license, which openrz67 chose for the repository.

Can I test firmware for the Openrz67-trigger 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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