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GaiForgeWeb-

GaiaForge·GaiForgeWeb-·SprigRig-main-main/SprigRig-main-main/Sprigrig_Hub_firmware-main/Sprigrig_PCB_Kicad/Sprig_rig_hub.kicad_pcb

GaiForgeWeb- PCB layout, top view — open source STM32 board by GaiaForge
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About the GaiForgeWeb- PCB

GaiForgeWeb- is an open source STM32 PCB design by GaiaForge, published on GitHub. It is a 2-layer board measuring 104.9 × 78 mm, with 81 components from 42 distinct parts.

Its main chip is the STM32G431CBTx, from the STM32 family. Other key parts include the TSR1-2433E, MAX485E, LM7812_TO220, MCP6002-xSN and CH340C. By type, the board carries 32 resistors, 22 connectors, 19 capacitors, 6 ICs, 1 switch and 1 diode.

It belongs with the sensors designs in this gallery.

From the project

WebsiteDev

STM32G431CBT6 firmware for the SprigRig Sensor Hub.

- Modbus RTU slave (9600 baud, 8N1) - 2x 4-20mA analog inputs - 2x 0-10V analog inputs - 2x 0-10V analog outputs (for fan speed, LED dimming) - 4x Digital inputs (for float switches, etc.) - 2x I2C ports for environmental sensors - 1x SPI port (expansion) - DIP switch address selection (1-16)

The 4-position DIP switch sets the Modbus slave address (1-16). Each hub on the RS485 bus must have a unique address.

Main components on the GaiForgeWeb-

STM32G431CBTxTSR1-2433EMAX485ELM7812_TO220MCP6002-xSNCH340C

GaiForgeWeb- bill of materials (BOM)

81 components, 42 distinct parts.

QtyPartRefs
1
STM32G431CBTx
U1
1
TSR1-2433E
U2
1
MAX485E
U3
1
LM7812_TO220
U4
1
MCP6002-xSN
U5
1
CH340C
U6
1
SWD Header
J1
1
RS485 IN
J2
1
RS485 OUT
J3
1
term res
J4
1
I2C 1
J5
1
I2C 2
J6
1
I2C 1 Pullup
J7
1
USB_C
J8
1
I2C 2 Pullup
J9
1
SPI
J10
1
0-10V A1
J11
1
0-10V A2
J12
1
4-20mA 1
J13
1
4-20mA 2
J14
Show 22 more
QtyPartRefs
1
24VIN
J15
1
DI 1
J16
1
DI 2
J17
1
DI 3
J18
1
DI 4
J19
1
24OUT
J20
1
Aout 1
J21
1
Aout 2
J22
1
Addr sel
SW1
1
PowerLED
D1
2
10uF
C1, C2
15
100nF
C3, C4, C5, C8, C9, C10, C11, C12 +7
1
10nF
C6
1
4.7uF
C7
18
10K
R1, R2, R9, R10, R11, R12, R15, R16 +10
4
4.7K
R3, R4, R5, R6
2
22K
R7, R8
2
150R
R13, R14
1
120R
R25
2
20K
R27, R28
1
2.2k
R30
2
5.1k
R31, R32

GaiForgeWeb- design files

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

GaiForgeWeb-: common questions

What microcontroller does the GaiForgeWeb- use?

The GaiForgeWeb- is built around the STM32G431CBTx, from the STM32 family.

How big is the GaiForgeWeb- PCB?

The GaiForgeWeb- measures 104.9 × 78 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the GaiForgeWeb-?

81 components, from 42 distinct parts. The full bill of materials is listed on this page.

Where can I download the GaiForgeWeb- design files?

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

Can I use the GaiForgeWeb- design in my own project?

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

Can I test firmware for the GaiForgeWeb- without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.

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