Mainboard
Mainboard is an open source STM32 PCB design by Cluradev: a 4-layer, 120 × 90 mm board with 162 components (72 distinct parts). It is built around the USBLC6-2P6, STM32F411CEUx, TPD6E05U06RVZ, L7809 and more. Filed under displays & leds.
This is the Offical Repo of the Clura Enclosure. Here you will find everything that we have ever made. Enjoy! For more details visit our site: clura.dev
Open hardware KiCad 9 designs for a two-board set: an STM32F411-based mainboard that handles power, control and I/O, and a companion sensorboard carrying the gas/smoke sensing front end. The two connect over an RJ45 link.
- MCU — STM32F411CEU6, 25 MHz HSE + 32.768 kHz LSE crystals, SWD header, BOOT jumper - Storage — micro SD card slot, AT24CS64 I²C EEPROM - Power — 12 V input via barrel jack / screw terminal, LM2596 switchers for 12 V and 5 V rails, SY8120B for 3V3, dedicated +5 V servo rail, fuse and reverse-protection diode - I/O — RJ45 to the sensorboard, HX711 load-cell interface…
Built around
Parts list
162 components, 72 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 7 | USBLC6-2P6 | SOT-666 | U1, U2, U3, U4, U5, U8, U12 |
| 1 | STM32F411CEUx | QFN-48-1EP_7x7mm_P0.5mm_EP5.15x5.15mm | U6 |
| 1 | TPD6E05U06RVZ | Texas_R-PUSON-N14 | U7 |
| 1 | L7809 | TO-263-2 | U9 |
| 1 | USBLC6-4SC6 | SOT-23-6 | U10 |
| 1 | AT24CS64-SSHM | SOIC-8_3.9x4.9mm_P1.27mm | U13 |
| 2 | LM2596S-5 | TO-263-5_TabPin3 | U18, U21 |
| 1 | LM2596S-12 | TO-263-5_TabPin3 | U19 |
| 1 | SY8120B | SOT23-6 | U22 |
| 2 | Motor_Servo | PinHeader_1x03_P2.54mm_Vertical | M1, M2 |
| 1 | MOSFET-FAN | SOT-23 | Q1 |
| 3 | BSS138 | SOT-23 | Q2, Q3, Q4 |
| 3 | SS8050 | SOT-23 | Q5, Q6, Q7 |
| 1 | 25MHz | Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | 32.768KHz | Crystal_C38-LF_D3.0mm_L8.0mm_Horizontal | Y2 |
| 1 | pms5003 | JST_GH_SM08B-GHS-TB_1x08-1MP_P1.25mm_Horizontal | J1 |
| 1 | LED Strip | JST_XH_B3B-XH-A_1x03_P2.50mm_Vertical | J2 |
| 1 | POWER IN TERMINAL | BarrelJack_Horizontal | J3 |
| 1 | SWD HEADER | PinHeader_1x04_P2.54mm_Vertical | J4 |
| 1 | Power_Out | JST_XH_B5B-XH-A_1x05_P2.50mm_Vertical | J6 |
Show 52 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | SWITCH | JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J12 |
| 1 | Buzzer | Buzzer_12x9.5RM7.6 | BZ1 |
| 1 | RJ45_NEW | RJ45_NEW | CONN1 |
| 1 | 3A | FUSE_01550900M | F1 |
| 2 | 140mm_FAN | Molex_KK-254_AE-6410-04A_1x04_P2.54mm_Vertical | FAN1, FAN6 |
| 2 | 60mm_FAN | JST_XH_B4B-XH-A_1x04_P2.50mm_Vertical | FAN2, FAN5 |
| 2 | Fan | JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | FAN3, FAN4 |
| 1 | REG FAN JUMPER | PinHeader_2x03_P2.54mm_Vertical_SMD | JP1 |
| 1 | 60MM FAN JUMPER | PinHeader_2x03_P2.54mm_Vertical_SMD | JP2 |
| 1 | 140 MM FAN JUMPER | PinHeader_2x03_P2.54mm_Vertical_SMD | JP3 |
| 1 | Screen | JST_XH_B4B-XH-A_1x04_P2.50mm_Vertical | JS1 |
| 2 | LOAD CELL AMP | JST_XH_B4B-XH-A_1x04_P2.50mm_Vertical | LC1, LC2 |
| 1 | F60 | JST_XH_B3B-XH-A_1x03_P2.50mm_Vertical | RV1 |
| 1 | F140 | JST_XH_B3B-XH-A_1x03_P2.50mm_Vertical | RV2 |
| 1 | Micro_SD_Card_Det1 | microSD_HC_Hirose_DM3AT-SF-PEJM5 | SD1 |
| 1 | BOOT_JP | SW_DIP_SPSTx02_Slide_6.7x6.64mm_W8.61mm_P2.54mm_LowProfile | SW1 |
| 1 | RESET_SW | SW_SPST_PTS647_Sx50 | SW2 |
| 1 | POWER | TerminalBlock_Phoenix_MKDS-1,5-2-5.08_1x02_P5.08mm_Horizontal | TB1 |
| 1 | 5V SSR TERMINAL1 | TerminalBlock_Phoenix_MKDS-1,5-2-5.08_1x02_P5.08mm_Horizontal | TB2 |
| 1 | 5V SSR TERMINAL2 | TerminalBlock_Phoenix_MKDS-1,5-2-5.08_1x02_P5.08mm_Horizontal | TB3 |
| 7 | BSD3A311V | SOD323 | D1, D3, D5, D9, D10, D15, D21 |
| 11 | PESD5V0S1UA | SOD323 | D2, D6, D7, D12, D13, D14, D16, D17 +3 |
| 2 | PESD12VS1UA. | SOD323 | D4, D25 |
| 1 | SS34 | D_SMA | D8 |
| 1 | PRTR5V0U2X | SOT-143 | D11 |
| 3 | PESD3V3L1BA | SOD323 | D18, D19, D24 |
| 1 | S6MC | D_SMC | D26 |
| 3 | SS14 | D_SMA | D27, D28, D29 |
| 2 | 47uH | L_Chilisin_BMRx00060630 | L1, L2 |
| 1 | 47uH | L_APV_APH1050 | L3 |
| 1 | 10uH/SFEK3015A-100M-HF | L_Neosid_SMS-ME3015 | L4 |
| 12 | 0.1uF | C_0603_1608Metric | C1, C2, C4, C5, C11, C12, C13, C15 +4 |
| 1 | 2.2uF | C_0603_1608Metric | C3 |
| 1 | 1uF | C_0603_1608Metric | C6 |
| 2 | 6pF | C_0603_1608Metric | C7, C9 |
| 1 | 10nF | C_0603_1608Metric | C8 |
| 2 | 15pF | C_0603_1608Metric | C10, C14 |
| 1 | 4.7uF | C_0805_2012Metric | C16 |
| 1 | 4.7uF | CP_Elec_10x10.5 | C18 |
| 1 | 4.7uF | C_0603_1608Metric | C19 |
| 3 | 470uF | CP_Elec_10x10.5 | C25, C26, C28 |
| 1 | 100n | C_0603_1608Metric | C29 |
| 1 | 10n | C_0603_1608Metric | C30 |
| 1 | 22u | C_0805_2012Metric | C31 |
| 9 | 100R | R_0603_1608Metric | R1, R2, R3, R5, R6, R15, R16, R34 +1 |
| 15 | 10K | R_0603_1608Metric | R4, R7, R8, R9, R10, R11, R22, R24 +7 |
| 3 | 470R | R_0603_1608Metric | R12, R13, R14 |
| 3 | 220R | R_0603_1608Metric | R17, R23, R27 |
| 11 | 22R | R_0603_1608Metric | R18, R19, R20, R21, R25, R26, R33, R36 +3 |
| 1 | 100k | R_0603_1608Metric | R48 |
| 1 | 22.1k | R_0603_1608Metric | R49 |
| 2 | 0R | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R50, R51 |
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