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STD Gemelli
Project Status:
Ongoing
License: Public Domain
- 1
Description
A split keyboard design on STM32F446RET6 microcontrollers. Very OP, very nice. Uses USB C for all external connections and for SPI communication between MCUs and supports two I2C displays.
Design Drawing
schematic diagram
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| ID | Name | Designator | Footprint | Quantity | Manufacturer Part | Manufacturer | Supplier | JLCPCB Part Class | spiceSymbolName | Contributor | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 100nF | C1,C4,C5,C6,C8,C10,C22,C7,C9,C11,C12,C13,C21,C23 | C0603 | 14 | CC0603KRX7R9BB104 | YAGEO(国巨) | LCSC | C14663 | Basic Part | CC0603KRX7R9BB104 | |
| 2 | 10uF | C2,C3,C18,C19 | C0603 | 4 | CL10A106MA8NRNC | SAMSUNG(三星) | LCSC | C96446 | Basic Part | CL10A106MA8NRNC | |
| 3 | 14pF | C14,C15,C16,C17 | C0603 | 4 | CL10C140JB8NNNC | SAMSUNG(三星) | LCSC | C170136 | Extended Part | CL10C140JB8NNNC | |
| 4 | 47uF | C20 | C1206 | 1 | GRM31CR61A476ME15L | muRata(村田) | LCSC | C94034 | Extended Part | GRM31CR61A476ME15L | |
| 5 | 1uF | C24,C25 | C0603 | 2 | CC0603KRX7R7BB105 | YAGEO(国巨) | LCSC | C106248 | Extended Part | CC0603KRX7R7BB105 | |
| 6 | 4.7uF | C30,C31 | C0603 | 2 | CSA0603X5R475K6R3JT | HRE(芯声) | LCSC | C3015159 | Extended Part | CSA0603X5R475K6R3JT | |
| 7 | LM3940IMP-3.3/NOPB | DC_DC | SOT-223_L6.5-W3.5-P2.30-LS7.0-BR | 1 | LM3940IMP-3.3/NOPB | TI(德州仪器) | LCSC | C140319 | Extended Part | LM3940IMP-3.3/NOPB | |
| 8 | EC12E24204A2 | ENCODER_1,ENCODER_2 | SW-TH_EC12E24204A2 | 2 | EC12E24204A2 | ALPS Electric | LCSC | C351238 | Extended Part | EC12E24204A2 | |
| 9 | TPUSBLC6-2SC6 | ESD | SOT-23-6_L2.9-W1.6-P0.95-LS2.8-BR | 1 | TPUSBLC6-2SC6 | TECH PUBLIC(台舟) | LCSC | C558442 | Extended Part | TPUSBLC6-2SC6 | |
| 10 | Ferrite Beads | L1,L2 | L0603 | 2 | BLM18PG121SN1D | muRata(村田) | LCSC | C14709 | Extended Part | BLM18PG121SN1D_C14709 | |
| 11 | STM32F446RET6 | MASTER,SLAVE | LQFP-64_L10.0-W10.0-P0.50-LS12.0-BL | 2 | STM32F446RET6 | ST(意法半导体) | LCSC | C69336 | Extended Part | STM32F446RET6 | |
| 12 | USB-TYPE-C-017 | PC_USB1,SPI_MASTER,SPI_SLAVE | USB-TYPE-C-SMD_C9900008089 | 3 | USB-TYPE-C-017 | DEALON(德艺隆) | LCSC | C2927037 | Extended Part | USB-TYPE-C-017 | |
| 13 | 5.1kΩ | R1,R2 | R0603 | 2 | RTT03512JTP | RALEC(旺诠) | LCSC | C103696 | Extended Part | RTT03512JTP | 5.1K |
| 14 | 715Ω | R3,R4 | R0603 | 2 | CR0603FA7150G | LIZ(丽智电子) | LCSC | C101173 | Extended Part | CR0603FA7150G | 715 |
| 15 | 22Ω | R7,R8,R25,R26,R27 | R0603 | 5 | 0603WAF220JT5E | UNI-ROYAL(厚声) | LCSC | C23345 | Basic Part | 0603WAF220JT5E | 22 |
| 16 | 10kΩ | R17,R18,R21,R22,R19,R20,R23,R24,R5,R6,R9,R10,R11,R12,R13,R14,R15,R16 | R0603 | 18 | 0603WAF1002T5E | UNI-ROYAL(厚声) | LCSC | C25804 | Basic Part | 0603WAF1002T5E | 10K |
| 17 | TS-1088-AR02016 | RST_1,RST_2 | SW-SMD_L3.9-W3.0-P4.45 | 2 | TS-1088-AR02016 | XUNPU(讯普) | LCSC | C720477 | Extended Part | TS-1088-AR02016 | |
| 18 | 16MHz | X1,X2 | CRYSTAL-SMD_4P-L3.2-W2.5-BL | 2 | X322516MOB4SI | YXC(扬兴晶振) | LCSC | C12668 | Extended Part | X322516MOB4SI | |
| 19 | 1N4148W_C81598 | D1,D2,D3,D4,D5,D6,D9,D10,D11,D12,D13,D14,D15,D16,D17,D18,D19,D20,D23,D24,D25,D26,D27,D28,D29,D30,D31,D32,D33,D34,D35,D36,D37,D38,D39,D40,D41,D42,D43,D44,D45,D46,D47,D48,D49,D50,D51,D52,D53,D54,D55,D56,D57,D58,D59,D60,D61,D62 | SOD-123F_L2.7-W1.6-LS3.8-RD | 58 | 1N4148W | ST(先科) | LCSC | C81598 | Basic Part | 1N4148W_C81598 |
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