Challenge
About the Challenge PCB
Challenge is an open source STM32 PCB design by FAliIAM, published on GitHub. It is a 2-layer board measuring 67.2 × 64.4 mm, with 238 components from 47 distinct parts.
Its main chip is the STM32H725ZGT, from the STM32 family. Other key parts include the AP62300WU-7, USB2517, MCP2542FDT-H/MNY, NCS20071SN2T1G and TPS25944ARVCR. By type, the board carries 125 resistors, 51 capacitors, 17 LEDs, 16 ICs, 9 transistors and 8 inductors.
From the project
Optimize the board layout and fully route the KiCad project in this repository. The schematic is loosely based on our panda jungle v2.
Optimize the board layout and fully route the KiCad project in this repository. The schematic is loosely based on our panda jungle v2.
The bare PCB must be fully manufacturable by JLCPCB. It must be possible to assemble the components by hand. The assembled product must work and be usable. Schematic and BOM changes are allowed, provided that the intended functionality of the original design is preserved.
Main components on the Challenge
Challenge bill of materials (BOM)
238 components, 47 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | AP62300WU-7 AP62300T | SOT23-6 | U1, U2 |
| 1 | STM32H725ZGT STM32H725ZGTx | LQFP-144_20x20mm_P0.5mm | U3 |
| 1 | USB2517 | QFN64-9X9 | U4 |
| 4 | MCP2542FDT-H/MNY MCP2542FDT-E/MNY | TDFN8_2X3MC_MCH | U5, U6, U7, U8 |
| 4 | NCS20071SN2T1G NCS20071XV | SOIC-8_3.9x4.9mm_P1.27mm | U9, U10, U11, U12 |
| 4 | TPS25944ARVCR TPS25942 | WQFN20 | U13, U14, U15, U16 |
| 1 | SI7101DN-T1-GE3 SIS427-VI | PP-1212-8 | Q1 |
| 8 | QS5K2TR NFET-DUAL-COMMON-SOURCE-QS5K2 | SOT23-5 | Q2, Q3, Q4, Q5, Q6, Q7, Q8, Q9 |
| 1 | RH100-25.000-12-F-1010-TR 25MHz | XTAL-3.2X2.5 | Y1 |
| 1 | ABM8AIG-24.000MHZ-12-2Z-T3 24MHz | XTAL-3.2X2.5 | Y2 |
| 1 | PJ-002AH-SMT-TR DCBARRELSMT | DCJACK_2MM_SMT | J1 |
| 1 | 47219-2001 MICRO_SD-0472192001 | 0472192001 | J2 |
| 1 | DX07S024XJ1R1100 USB-C-FEMALE | DX07S024XJ1R1100 | J3 |
| 4 | 10132328-10011LF USB-C-FEMALEGCT | USB-C-FEMALE-VERT-GCT | J5, J6, J7, J8 |
| 1 | EVQ-Q2Y03W SPST-2-4PIN | EVQ-Q2 | SW1 |
| 1 | CLMVC-FKA-CL1D1L71BB7C3C3 CREE-RGB-CLMVC | CREE-RGB-CLMVC | LED1 |
| 1 | LG R971-KN-1 CAN0 | CHIPLED | LED2 |
| 1 | LG R971-KN-1 CAN1 | CHIPLED | LED3 |
| 1 | LG R971-KN-1 CAN2 | CHIPLED | LED4 |
| 1 | LG R971-KN-1 CAN3 | CHIPLED | LED5 |
Show 27 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 4 | LG R971-KN-1 CH1_PWR | CHIPLED | LED6, LED7, LED8, LED9 |
| 8 | AM23ESGW LED-CC-GREEN-RED-AM23ESG | SOT23-3 | LED10, LED11, LED12, LED13, LED14, LED15, LED16, LED17 |
| 1 | SMAJ16CA-13-F TVS-BI-DO214AA | DO-214AA(SMB) | D1 |
| 1 | PMEG10020ELRX DIODEDB2W40100L | SOD-123F | D2 |
| 2 | MEKK2520T3R3M 3u3 | L-1008 | L1, L2 |
| 1 | MH1608-601Y L-US-L2 | 0603-L | L3 |
| 1 | LQM2MPN2R2NG0L 2u2 | 0806 | L4 |
| 4 | ACT1210D-101-2P-TL00 ACT1210D_CHOKE | CHOKE-3.2X2.5 | L5, L6, L7, L8 |
| 9 | CL21A106KAYNNNE 10uF | 0805-C | C1, C3, C8, C12, C13, C15, C19, C20 +1 |
| 29 | CL05F104ZO5NNNC 100nF | 0402-C | C2, C4, C5, C7, C9, C11, C16, C18 +21 |
| 4 | C0402C120J5GACTU 12pF | 0402-C | C14, C17, C28, C32 |
| 1 | 04025A221FAT2A 220pF | 0402-C | C25 |
| 4 | GRM155R61A106ME11D 10u | 0402-C | C29, C33, C34, C37 |
| 4 | CL21A106KAYNNNE 10u | 0805-C | C50, C51, C52, C53 |
| 43 | RC0402FR-0710KL 10k | 0402-R | R1, R3, R7, R8, R9, R11, R12, R28 +35 |
| 11 | RC0402JR-071KL 1k | 0402-R | R2, R21, R23, R90, R92, R94, R96, R114 +3 |
| 17 | RC0402JR-07100KL 100k | 0402-R | R4, R5, R6, R13, R14, R15, R16, R17 +9 |
| 1 | RC0402FR-0752K3L 52k3 | 0402-R | R10 |
| 5 | RC0402JR-072K7L 2k7 | 0402-R | R22, R62, R63, R64, R65 |
| 1 | RC0402JR-071ML 1M | 0402-R | R26 |
| 1 | CRGCQ0402F12K 12k | 0402-R | R27 |
| 6 | RMCF0402ZT0R00 0R | 0402-R | R38, R39, R40, R41, R42, R43 |
| 4 | RC0402FR-0760R4L 60 | 0402-R | R46, R47, R48, R49 |
| 4 | RK73H1ETTP2802F 28k | 0402-R | R66, R67, R68, R69 |
| 4 | RC0402JR-0733KL 33k | 0402-R | R70, R71, R72, R73 |
| 4 | RC0402JR-073K3L 3k3 | 0402-R | R74, R75, R76, R77 |
| 24 | RC0402JR-07100RL 100 | 0402-R | R82, R83, R84, R85, R86, R87, R88, R89 +16 |
Challenge design files
The KiCad project lives in the FAliIAM/Challenge repository on GitHub; these links point at the commit this page was built from.
- Layoutlayout_challenge.kicad_pcb
- Schematiclayout_challenge.kicad_sch
Challenge: common questions
What microcontroller does the Challenge use?
The Challenge is built around the STM32H725ZGT, from the STM32 family.
How big is the Challenge PCB?
The Challenge measures 67.2 × 64.4 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Challenge?
238 components, from 47 distinct parts. The full bill of materials is listed on this page.
Where can I download the Challenge design files?
From the FAliIAM/Challenge repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Challenge design in my own project?
The repository has no license, so all rights stay with FAliIAM. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Challenge 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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