Dumbfinder benchbuddy mcu
About the Dumbfinder benchbuddy mcu PCB
Dumbfinder benchbuddy mcu is an open source STM32 PCB design by pierrekin, published on GitHub. It is a 2-layer board measuring 80 × 55 mm, with 33 components from 12 distinct parts.
Its main chip is the STM32H745IIT6, from the STM32 family. Other key parts include the AP2112K-3.3TRG1. By type, the board carries 24 capacitors, 2 ICs, 2 connectors, 2 inductors, 1 crystal and 1 resistor.
Main components on the Dumbfinder benchbuddy mcu
Dumbfinder benchbuddy mcu bill of materials (BOM)
33 components, 12 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | STM32H745IIT6 STMicroelectronics | LQFP-176_L24.0-W24.0-P0.50-LS26.0-BL | U1 |
| 1 | AP2112K-3.3TRG1 Diodes Incorporated | SOT-25-5_L2.9-W1.6-P0.95-LS2.8-BL | U2 |
| 1 | X322525MSB4SI Yangxing Tech | CRYSTAL-SMD_4P-L3.2-W2.5-BL-2 | X1 |
| 2 | MTP125-1213S1 MINTRON | HDR-TH_26P-P2.54-V-M-R2-C13-S2.54 | J1, J2 |
| 1 | PZ254V-12-6P XFCN | HDR-TH_6P-P2.54-V-M-R2-C3-S2.54 | H1 |
| 2 | BLM18PG600SN1D Murata Electronics | L0603 | L1, L2 |
| 4 | CL10A106KP8NNNC 10µF ±10% Samsung Electro-Mechanics | C0603 | C1, C2, C23, C24 |
| 14 | CC0603KRX7R9BB104 100nF ±10% YAGEO | C0603 | C3, C4, C5, C6, C8, C10, C11, C12 +6 |
| 2 | CL05A105KA5NQNC 1µF ±10% Samsung Electro-Mechanics | C0402 | C7, C9 |
| 2 | CL10C330JB8NNNC Samsung Electro-Mechanics | C0603 | C19, C20 |
| 2 | CL05A225MQ5NSNC 2.2µF ±20% Samsung Electro-Mechanics | C0402 | C21, C22 |
| 1 | 0603WAF1002T5E 10kΩ ±1% UNI-ROYAL(Uniroyal Elec) | R0603 | R1 |
Dumbfinder benchbuddy mcu design files
The KiCad project lives in the pierrekin/buddies repository on GitHub; these links point at the commit this page was built from.
Dumbfinder benchbuddy mcu: common questions
What microcontroller does the Dumbfinder benchbuddy mcu use?
The Dumbfinder benchbuddy mcu is built around the STM32H745IIT6, from the STM32 family.
How big is the Dumbfinder benchbuddy mcu PCB?
The Dumbfinder benchbuddy mcu measures 80 × 55 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Dumbfinder benchbuddy mcu?
33 components, from 12 distinct parts. The full bill of materials is listed on this page.
Where can I download the Dumbfinder benchbuddy mcu design files?
From the pierrekin/buddies repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Dumbfinder benchbuddy mcu design in my own project?
The repository has no license, so all rights stay with pierrekin. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Dumbfinder benchbuddy mcu 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.
More boards in buddies
Dumbfinder benchbuddy adc
80 × 55 mm103 parts2LNo license0
Rx block
190 × 140 mm84 parts2LNo license0
Dumbfinder benchbuddy txrx
80 × 55 mm56 parts2LNo license0
Tx block
460 × 720 mm48 parts2LNo license0- schematic only · 44 partsSTM32
G3-native
44 parts2LNo license0 
Dumbfinder benchbuddy purerx
80 × 55 mm27 parts2LNo license0
STM32Mcu block
60 × 200 mm27 parts2LNo license0
Dumbfinder benchbuddy transducer
80 × 55 mm24 parts2LNo license0
Pure rx block
20 × 190 mm22 parts2LNo license0
Dumbfinder benchbuddy power
80 × 55 mm19 parts2LNo license0
Rx adc
10 × 140 mm16 parts2LNo license0
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