HaptiCAD Base
EmielV2002·HaptiCAD·HaptiCAD_base/HaptiCAD_base.kicad_pcb
About the HaptiCAD Base PCB
HaptiCAD Base is an open source STM32 PCB design by EmielV2002, published on GitHub under the Apache-2.0 license. It is a 4-layer board measuring 90 × 90 mm, with 92 components from 32 distinct parts.
Its main chip is the STM32G431CBUx, from the STM32 family. Other key parts include the SN74LV1T34DBV, VEML7700-TR, TLV493D, PCA9546A and AP2112K-3.3. By type, the board carries 40 capacitors, 16 LEDs, 15 resistors, 9 ICs, 5 connectors and 4 diodes.
From the project
A PC peripheral based on the smartknob project by scottbez1.
Main components on the HaptiCAD Base
HaptiCAD Base bill of materials (BOM)
92 components, 32 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | SN74LV1T34DBV | SOT-23-5 | U201 |
| 1 | VEML7700-TR | XDCR_VEML7700-TR | U401 |
| 3 | TLV493D | SOT-23-6 | U402, U403, U405 |
| 1 | PCA9546A | QFN-16_EP_5.25x5.25_Pitch0.65mm | U404 |
| 1 | AP2112K-3.3 | SOT-23-5 | U501 |
| 1 | STSPIN233 | VQFN-16-1EP_3x3mm_P0.5mm_EP1.8x1.8mm | U601 |
| 1 | STM32G431CBUx | QFN-48-1EP_7x7mm_P0.5mm_EP5.6x5.6mm | U801 |
| 1 | 12MHz | Crystal_SMD_3225-4Pin_3.2x2.5mm | Y801 |
| 1 | BLDC | JST_PH_B3B-PH-SM4-TB_1x03-1MP_P2.00mm_Vertical | J101 |
| 1 | ENC | JST_PH_B5B-PH-SM4-TB_1x05-1MP_P2.00mm_Vertical | J102 |
| 1 | EXT_UART | PinHeader_1x04_P2.54mm_Vertical_SMD_Pin1Left | J103 |
| 1 | USB_C_Receptacle_USB2.0_16P | USB_C_Receptacle_HRO_TYPE-C-31-M-14 | J301 |
| 1 | SWD | PinHeader_1x05_P2.54mm_Vertical_SMD_Pin1Left | J801 |
| 2 | SW_Push | SW_SPST_PTS810 | SW801, SW802 |
| 16 | WS2812_4020 | LED_WS2812_4020 | LED201, LED202, LED203, LED204, LED205, LED206, LED207, LED208 +8 |
| 1 | PRTR5V0U2X | SOT-143 | D301 |
| 1 | VPWR | D_0603_1608Metric | D501 |
| 1 | FAULT | D_0603_1608Metric | D601 |
| 1 | USER | D_0603_1608Metric | D801 |
| 22 | 0.1uF | C_0603_1608Metric | C201, C202, C203, C204, C205, C206, C207, C208 +14 |
Show 12 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 0.1uF | C_0805_2012Metric | C301 |
| 2 | 10uF | C_0805_2012Metric | C501, C502 |
| 2 | 22uF | C_0805_2012Metric | C601, C602 |
| 2 | 2.2uF | C_0805_2012Metric | C603, C604 |
| 1 | 1nF | C_0402_1005Metric | C605 |
| 1 | 10nF | C_0402_1005Metric | C606 |
| 7 | 0.1uF | C_0402_1005Metric | C801, C802, C803, C804, C805, C806, C807 |
| 2 | 20pF | C_0402_1005Metric | C808, C809 |
| 4 | 5.1k | R_0402_1005Metric | R301, R302, R501, R802 |
| 8 | 2.2k | R_0603_1608Metric | R401, R402, R403, R404, R405, R406, R408, R409 |
| 1 | 3.3k | R_0402_1005Metric | R601 |
| 2 | 27 | R_0402_1005Metric | R803, R804 |
HaptiCAD Base design files
The KiCad project lives in the EmielV2002/HaptiCAD repository on GitHub; these links point at the commit this page was built from.
HaptiCAD Base: common questions
What microcontroller does the HaptiCAD Base use?
The HaptiCAD Base is built around the STM32G431CBUx, from the STM32 family.
How big is the HaptiCAD Base PCB?
The HaptiCAD Base measures 90 × 90 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the HaptiCAD Base?
92 components, from 32 distinct parts. The full bill of materials is listed on this page.
Where can I download the HaptiCAD Base design files?
From the EmielV2002/HaptiCAD repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the HaptiCAD Base design in my own project?
Yes, under the terms of its Apache-2.0 license, which EmielV2002 chose for the repository.
Can I test firmware for the HaptiCAD Base 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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