6U5 MCU Board
About the 6U5 MCU Board
6U5 MCU Board is an open source STM32 PCB design by donpivo, published on GitHub. It is a 2-layer board measuring 20 × 52 mm, with 27 components from 19 distinct parts.
Its main chip is the STM32F103CBTX, from the STM32 family. Other key parts include the MCP6001T-I/OT and NCP1117-3.3_SOT223. By type, the board carries 10 capacitors, 7 resistors, 4 connectors, 3 ICs, 1 transistor and 1 crystal.
Main components on the 6U5 MCU Board
6U5 MCU Board bill of materials (BOM)
27 components, 19 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | MCP6001T-I/OT | SOT-23-5 | U1 |
| 1 | STM32F103CBTX STM32F103CBTx | LQFP-48_7x7mm_P0.5mm | U2 |
| 1 | NCP1117-3.3_SOT223 | SOT-223-3_TabPin2 | U3 |
| 1 | BC847C | SOT-23 | Q1 |
| 1 | XC32M4-8.000 12pF | Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | Pin header | PinHeader_1x03_P2.54mm_Horizontal_Alt | J1 |
| 1 | EMI Shield | EMI_Shield_MS207-10S | J2 |
| 1 | FFC8 | 0527450897 | J3 |
| 1 | Display interface | 505110-1292 | J4 |
| 1 | 1kΩ@100MHz 500mΩ@DC | L_0603_1608Metric_Pad1.05x0.95mm_HandSolder | FB1 |
| 5 | 100NF 100nF | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C1, C3, C8, C9, C10 |
| 3 | 10µF | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C2, C4, C5 |
| 2 | 20PF 20pF | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C6, C7 |
| 2 | 10kΩ | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1, R4 |
| 1 | 2.2MΩ | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R2 |
| 1 | 15MΩ | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R3 |
| 1 | 1MΩ | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R5 |
| 1 | 10Ω | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R6 |
| 1 | 1kΩ | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R7 |
6U5 MCU Board design files
The KiCad project lives in the donpivo/TuningIndicator_6U5 repository on GitHub; these links point at the commit this page was built from.
6U5 MCU Board: common questions
What microcontroller does the 6U5 MCU Board use?
The 6U5 MCU Board is built around the STM32F103CBTX, from the STM32 family.
How big is the 6U5 MCU Board?
The 6U5 MCU Board measures 20 × 52 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the 6U5 MCU Board?
27 components, from 19 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 6U5 MCU Board design files?
From the donpivo/TuningIndicator_6U5 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 6U5 MCU Board design in my own project?
The repository has no license, so all rights stay with donpivo. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the 6U5 MCU Board 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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