# MERGEN ABRA ROV Main Control Board ## Description Integrated 4-layer ROV main control board for 48 V tether-powered underwater vehicle, with onboard 48 V to 12 V/5 V/3.3 V electronics power conversion, STM32F407 control, Jetson Nano interface, sensors, ESC PWM signal outputs, RS485/Ethernet tether interfaces, and conformal-coated underwater-enclosure constraints. ## Project Details - **Owner:** sammylunar - **Created:** 5/19/2026 - **Last Updated:** 5/19/2026 - **Visibility:** Public - **Power Requirements:** 48 V DC tether input from surface station; onboard conversion to 12 V 3 A, 5 V 2 A, and 3.3 V 1 A electronics rails; ESC power conversion handled on external PDB. - **Human Interface:** SWD/JTAG debug, reset button, BOOT0 jumper/DIP, power indicator LEDs, test points - **Operating Voltage:** 48V - **Connectivity:** UART, I2C, 1-Wire, PWM ESC outputs, RS485, Ethernet tether, CSI camera - **Implementation Details:** No internal battery. No XT60 LiPo input. ESC power bypasses PCB; PCB provides PWM and GND reference only. Tether voltage drop must be calculated after cable cross-section/resistance is known. - **Domain:** Marine robotics / underwater ROV control electronics - **Stars:** 2 ## Key Components ### D1 — [SMAJ48A](https://www.flux.ai/adrian95/smaj48a~8xw.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Diode - Datasheet URL: https://www.littelfuse.com/~/media/electronics/datasheets/tvs_diodes/littelfuse_tvs_diode_smaj_datasheet.pdf.pdf - Manufacturer Part Number: SMAJ48A - Manufacturer Name: Littelfuse Inc. **Pins:** - A [pin 2] - K [pin 1] ### FB1 — [Ferrite Bead 0603](https://www.flux.ai/vasy_skral/ferrite-bead-0603~znt.md) - Part Type: Inductor **Pins:** - ~ [pin 2] - ~ [pin 1] ### FB2 — [Ferrite Bead 0603](https://www.flux.ai/vasy_skral/ferrite-bead-0603~znt.md) - Part Type: Inductor **Pins:** - ~ [pin 2] - ~ [pin 1] ### FB3 — [Ferrite Bead 0603](https://www.flux.ai/vasy_skral/ferrite-bead-0603~znt.md) - Part Type: Inductor **Pins:** - ~ [pin 2] - ~ [pin 1] ### FB4 — [Ferrite Bead 0603](https://www.flux.ai/vasy_skral/ferrite-bead-0603~znt.md) - Part Type: Inductor **Pins:** - ~ [pin 2] - ~ [pin 1] ### J1 — [282838-2](https://www.flux.ai/mvniekerk/282838-2~u5.md) - Manufacturer Part Number: 282838-2 - Part Type: Connector - Manufacturer Name: TE Connectivity AMP Connectors - Max Input Voltage: 600V - Datasheet URL: https://www.te.com/usa-en/product-282838-2.datasheet.pdf - Current: 13.5A **Pins:** - 1 [pin 1] - 2 [pin 2] ### J10 — [Pin Header 01x03 2.54mm Vertical](https://www.flux.ai/adrian95/pin-header-01x03-254mm-vertical~cp4.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Connector **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] ### J11 — [Pin Header 01x03 2.54mm Vertical](https://www.flux.ai/adrian95/pin-header-01x03-254mm-vertical~cp4.md) - Part Type: Connector - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] ### J12 — [Pin Header 01x03 2.54mm Vertical](https://www.flux.ai/adrian95/pin-header-01x03-254mm-vertical~cp4.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Connector **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] ### J13 — [Pin Header 01x03 2.54mm Vertical](https://www.flux.ai/adrian95/pin-header-01x03-254mm-vertical~cp4.md) - Part Type: Connector - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] ### J14 — [Pin Header 01x02 2.54mm Vertical](https://www.flux.ai/jharwinbarrozo/generic-pin-header-01x02-2p54mm-vertical~4uy.md) - Part Type: Connector - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - P1 [pin 1] - P2 [pin 2] ### J2 — [D2540-6002-AR](https://www.flux.ai/adrian95/d2540-6002-ar~sw.md) - Connector Type: Headers and Wire Housings - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: 3M - Package or Case Code: SHDR40W64P254_2X20_5812X859X991P - Datasheet URL: http://multimedia.3m.com/mws/media/485877O/3m-four-wall-header-d2500-series-ts-2244.pdf - Connector Rows: 2 - Connector Gender: Male - Connector Pitch: 2.54mm - Part Type: Connector - Connector Positions: 40 - Manufacturer Part Number: D2540-6002-AR **Pins:** - 1 [pin 1] - 10 [pin 10] - 11 [pin 11] - 12 [pin 12] - 13 [pin 13] - 14 [pin 14] - 15 [pin 15] - 16 [pin 16] - 17 [pin 17] - 18 [pin 18] - 19 [pin 19] - 2 [pin 2] - 20 [pin 20] - 21 [pin 21] - 22 [pin 22] - 23 [pin 23] - 24 [pin 24] - 25 [pin 25] - 26 [pin 26] - 27 [pin 27] - 28 [pin 28] - 29 [pin 29] - 3 [pin 3] - 30 [pin 30] - 31 [pin 31] - 32 [pin 32] - 33 [pin 33] - 34 [pin 34] - 35 [pin 35] - 36 [pin 36] - 37 [pin 37] - 38 [pin 38] - 39 [pin 39] - 4 [pin 4] - 40 [pin 40] - 5 [pin 5] - 6 [pin 6] - 7 [pin 7] - 8 [pin 8] - 9 [pin 9] ### J3 — [FH28-15S-0.5SH(10)](https://www.flux.ai/adrian95/fh28-15s-0p5sh10~xf7.md) - Package or Case Code: HIROSE_FH28-15S-0.5SH_10_ - Manufacturer Part Number: FH28-15S-0.5SH(10) - Manufacturer Name: Hirose Electric Co Ltd - Part Type: Connector - Datasheet URL: https://www.hirose.com/product/document?clcode=CL0586-1827-6-05&productname=FH28D-30S-0.5SH(05)&series=FH28&documenttype=Catalog&lang=en&documentid=D31647_en - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - 1 [pin 1] - 10 [pin 10] - 11 [pin 11] - 12 [pin 12] - 13 [pin 13] - 14 [pin 14] - 15 [pin 15] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] - 7 [pin 7] - 8 [pin 8] - 9 [pin 9] ### J4 — [JST_SH_BM04_1x04_P1.00mm_Vertical](https://www.flux.ai/jecstronic/jstshbm041x04p1p00mmvertical~g1u.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Connector **Pins:** - P1 [pin 1] - P2 [pin 2] - P3 [pin 3] - P4 [pin 4] ### J5 — [B3B-PH-K-S(LF)(SN)](https://www.flux.ai/adrian95/b3b-ph-k-slfsn~xzb.md) - Datasheet URL: https://www.jst-mfg.com/product/pdf/eng/ePH.pdf - Manufacturer Name: JST Sales America Inc. - Manufacturer Part Number: B3B-PH-K-S(LF)(SN) - Part Type: Connector - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] ### J6 — [HR911105A](https://www.flux.ai/jecstronic/hr911105a~ae9.md) - Manufacturer Part Number: HR911105A - Manufacturer Name: HANRUN - Part Type: Connector - Datasheet URL: https://datasheet.lcsc.com/lcsc/1811141815_HANRUN-Zhongshan-HanRun-Elec-HR911105A_C12074.pdf - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - ~ [pin 2] - ~ [pin 6] - ~ [pin 5] - ~ [pin 11] - ~ [pin 12] - ~ [pin 8] - ~ [pin 1] - ~ [pin 4] - ~ [pin 9] - ~ [pin 3] - ~ [pin 10] - SHIELD [pin 15] - SHIELD [pin 16] ### J7 — [3220-10-0300-00](https://www.flux.ai/adrian95/3220-10-0300-00~4yk.md) - Manufacturer Name: CNC Tech - Manufacturer Part Number: 3220-10-0300-00 - Part Type: Connector - Datasheet URL: https://www.cnctech.us/pdfs/3220-XX-0300-00_.pdf - Package or Case Code: CNC_3220-10-0300-00 **Pins:** - 1 [pin 1] - 10 [pin 10] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] - 7 [pin 7] - 8 [pin 8] - 9 [pin 9] ### J8 — [Pin Header 01x03 2.54mm Vertical](https://www.flux.ai/adrian95/pin-header-01x03-254mm-vertical~cp4.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Connector **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] ### J9 — [Pin Header 01x03 2.54mm Vertical](https://www.flux.ai/adrian95/pin-header-01x03-254mm-vertical~cp4.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Connector **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] ### LED1 — [Generic LED SMD](https://www.flux.ai/jharwinbarrozo/generic-led-smd~ku.md) - Package: LED_0603_1608Metric - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### LED2 — [Generic LED SMD](https://www.flux.ai/jharwinbarrozo/generic-led-smd~ku.md) - Part Type: LED - Package: LED_0603_1608Metric **Pins:** - A [pin 2] - K [pin 1] ### LED3 — [Generic LED SMD](https://www.flux.ai/jharwinbarrozo/generic-led-smd~ku.md) - Package: LED_0603_1608Metric - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### LED4 — [Generic LED SMD](https://www.flux.ai/jharwinbarrozo/generic-led-smd~ku.md) - Package: LED_0603_1608Metric - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### Q1 — [VS5814DS](https://www.flux.ai/jecstronic/vs5814ds~jvw.md) - Manufacturer Name: Vergiga Semiconductor - Manufacturer Part Number: VS5814DS - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.vgsemi.com/upload/attachment/goods/VS5814DS.pdf - Part Type: mosfet **Pins:** - D1 [pin 8] - D1 [pin 7] - D2 [pin 5] - D2 [pin 6] - G1 [pin 2] - G2 [pin 4] - S1 [pin 1] - S2 [pin 3] ### Q2 — [VS5814DS](https://www.flux.ai/jecstronic/vs5814ds~jvw.md) - Part Type: mosfet - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.vgsemi.com/upload/attachment/goods/VS5814DS.pdf - Manufacturer Part Number: VS5814DS - Manufacturer Name: Vergiga Semiconductor **Pins:** - D1 [pin 8] - D1 [pin 7] - D2 [pin 5] - D2 [pin 6] - G1 [pin 2] - G2 [pin 4] - S1 [pin 1] - S2 [pin 3] ### Q3 — [VS5814DS](https://www.flux.ai/jecstronic/vs5814ds~jvw.md) - Part Type: mosfet - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.vgsemi.com/upload/attachment/goods/VS5814DS.pdf - Manufacturer Part Number: VS5814DS - Manufacturer Name: Vergiga Semiconductor **Pins:** - D1 [pin 8] - D1 [pin 7] - D2 [pin 5] - D2 [pin 6] - G1 [pin 2] - G2 [pin 4] - S1 [pin 1] - S2 [pin 3] ### SW1 — [TS-1088-AR02016](https://www.flux.ai/lcsc/ts-1088-ar02016~e3n1.md) - Package or Case Code: SW-SMD_L3.9-W3.0-P4.45 - LCSC Part Number: C720477 - Part Type: Tactile Switches - JLCPCB Part Class: Extended Part - Manufacturer Part Number: TS-1088-AR02016 - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2409302330_XUNPU-TS-1088-AR02016_C720477.pdf - Manufacturer Name: XUNPU(讯普) - Product Info Url: https://lcsc.com/product-detail/Tactile-Switches_XUNPU-TS-1088-AR02016_C720477.html **Pins:** - 1 [pin 1] - 2 [pin 2] ### SW2 — [BD01](https://www.flux.ai/lcsc/bd01~cbmf.md) - JLCPCB Part Class: Extended Part - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_C-K-BD01_C221565.pdf - Part Type: DIP Switches - Manufacturer Part Number: BD01 - Package or Case Code: SW-TH_BD01 - LCSC Part Number: C221565 - Product Info Url: https://lcsc.com/product-detail/Others_C-K_BD01_C-K-BD01_C221565.html - Manufacturer Name: C&K **Pins:** - 1 [pin 1] - 2 [pin 2] ### TP1 — [Generic Testpoint](https://www.flux.ai/jharwinbarrozo/generic-testpoint~esx.md) - Testpoint Size: 0.5 **Pins:** - P1 ### TP10 — [Generic Testpoint](https://www.flux.ai/jharwinbarrozo/generic-testpoint~esx.md) - Testpoint Size: 0.5 **Pins:** - P1 ### TP11 — [Generic Testpoint](https://www.flux.ai/jharwinbarrozo/generic-testpoint~esx.md) - Testpoint Size: 0.5 **Pins:** - P1 ### TP12 — [Generic Testpoint](https://www.flux.ai/jharwinbarrozo/generic-testpoint~esx.md) - Testpoint Size: 0.5 **Pins:** - P1 ### TP13 — [Generic Testpoint](https://www.flux.ai/jharwinbarrozo/generic-testpoint~esx.md) - Testpoint Size: 0.5 **Pins:** - P1 ### TP14 — [Generic Testpoint](https://www.flux.ai/jharwinbarrozo/generic-testpoint~esx.md) - Testpoint Size: 0.5 **Pins:** - P1 ### TP15 — [Generic Testpoint](https://www.flux.ai/jharwinbarrozo/generic-testpoint~esx.md) - Testpoint Size: 0.5 **Pins:** - P1 ### TP16 — [Generic Testpoint](https://www.flux.ai/jharwinbarrozo/generic-testpoint~esx.md) - Testpoint Size: 0.5 **Pins:** - P1 ### TP17 — [Generic Testpoint](https://www.flux.ai/jharwinbarrozo/generic-testpoint~esx.md) - Testpoint Size: 0.5 **Pins:** - P1 ### TP18 — [Generic Testpoint](https://www.flux.ai/jharwinbarrozo/generic-testpoint~esx.md) - Testpoint Size: 0.5 **Pins:** - P1 ### TP19 — [Generic Testpoint](https://www.flux.ai/jharwinbarrozo/generic-testpoint~esx.md) - Testpoint Size: 0.5 **Pins:** - P1 ### TP2 — [Generic Testpoint](https://www.flux.ai/jharwinbarrozo/generic-testpoint~esx.md) - Testpoint Size: 0.5 **Pins:** - P1 ### TP20 — [Generic Testpoint](https://www.flux.ai/jharwinbarrozo/generic-testpoint~esx.md) - Testpoint Size: 0.5 **Pins:** - P1 ### TP3 — [Generic Testpoint](https://www.flux.ai/jharwinbarrozo/generic-testpoint~esx.md) - Testpoint Size: 0.5 **Pins:** - P1 ### TP4 — [Generic Testpoint](https://www.flux.ai/jharwinbarrozo/generic-testpoint~esx.md) - Testpoint Size: 0.5 **Pins:** - P1 ### TP5 — [Generic Testpoint](https://www.flux.ai/jharwinbarrozo/generic-testpoint~esx.md) - Testpoint Size: 0.5 **Pins:** - P1 ### TP6 — [Generic Testpoint](https://www.flux.ai/jharwinbarrozo/generic-testpoint~esx.md) - Testpoint Size: 0.5 **Pins:** - P1 ### TP7 — [Generic Testpoint](https://www.flux.ai/jharwinbarrozo/generic-testpoint~esx.md) - Testpoint Size: 0.5 **Pins:** - P1 ### TP8 — [Generic Testpoint](https://www.flux.ai/jharwinbarrozo/generic-testpoint~esx.md) - Testpoint Size: 0.5 **Pins:** - P1 ### TP9 — [Generic Testpoint](https://www.flux.ai/jharwinbarrozo/generic-testpoint~esx.md) - Testpoint Size: 0.5 **Pins:** - P1 ### U1 — [LM5116MH/NOPB](https://www.flux.ai/adrian95/lm5116mhnopb~q40.md) - Datasheet URL: https://www.ti.com/lit/ds/symlink/lm5116.pdf - Manufacturer Name: Texas Instruments Inc. - Part Type: Integrated Circuit - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: LM5116MH/NOPB **Pins:** - AGND [pin 6] - COMP [pin 9] - CS [pin 12] - CSG [pin 13] - DEMB [pin 11] - EN [pin 4] - EP [pin 21] - FB [pin 8] - HB [pin 18] - HO [pin 19] - LO [pin 15] - PGND [pin 14] - RAMP [pin 5] - RT/SYNC [pin 3] - SS [pin 7] - SW [pin 20] - UVLO [pin 2] - VCC [pin 16] - VCCX [pin 17] - VIN [pin 1] - VOUT [pin 10] ### U2 — [LM5116MH/NOPB](https://www.flux.ai/adrian95/lm5116mhnopb~q40.md) - Part Type: Integrated Circuit - Datasheet URL: https://www.ti.com/lit/ds/symlink/lm5116.pdf - Manufacturer Name: Texas Instruments Inc. - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: LM5116MH/NOPB **Pins:** - AGND [pin 6] - COMP [pin 9] - CS [pin 12] - CSG [pin 13] - DEMB [pin 11] - EN [pin 4] - EP [pin 21] - FB [pin 8] - HB [pin 18] - HO [pin 19] - LO [pin 15] - PGND [pin 14] - RAMP [pin 5] - RT/SYNC [pin 3] - SS [pin 7] - SW [pin 20] - UVLO [pin 2] - VCC [pin 16] - VCCX [pin 17] - VIN [pin 1] - VOUT [pin 10] ### U3 — [LM5116MH/NOPB](https://www.flux.ai/adrian95/lm5116mhnopb~q40.md) - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: LM5116MH/NOPB - Datasheet URL: https://www.ti.com/lit/ds/symlink/lm5116.pdf - Manufacturer Name: Texas Instruments Inc. - Part Type: Integrated Circuit **Pins:** - AGND [pin 6] - COMP [pin 9] - CS [pin 12] - CSG [pin 13] - DEMB [pin 11] - EN [pin 4] - EP [pin 21] - FB [pin 8] - HB [pin 18] - HO [pin 19] - LO [pin 15] - PGND [pin 14] - RAMP [pin 5] - RT/SYNC [pin 3] - SS [pin 7] - SW [pin 20] - UVLO [pin 2] - VCC [pin 16] - VCCX [pin 17] - VIN [pin 1] - VOUT [pin 10] ### U4 — [TPS26630RGER](https://www.flux.ai/lcsc/tps26630rger~1fl1.md) - Manufacturer Part Number: TPS26630RGER - JLCPCB Part Class: Extended Part - Package or Case Code: VQFN-24_L4.0-W4.0-P0.50-TL-EP2.7 - Manufacturer Name: TI(德州仪器) - LCSC Part Number: C1850276 **Pins:** - ~{FLT} [pin 14] - ~{SHDN} [pin 12] - B_GATE [pin 3] - DRV [pin 4] - dVdT [pin 9] - EP [pin 25] - GND [pin 8] - ILIM [pin 10] - IMON [pin 13] - IN [pin 1] - IN [pin 2] - IN_SYS [pin 5] - MODE [pin 11] - N.C. [pin 23] - N.C. [pin 19] - N.C. [pin 24] - N.C. [pin 22] - N.C. [pin 20] - N.C. [pin 21] - OUT [pin 17] - OUT [pin 18] - OVP [pin 7] - PGOOD [pin 16] - PGTH [pin 15] - UVLO [pin 6] ### U5 — [INA228AIDGSR](https://www.flux.ai/lcsc/ina228aidgsr~8op9.md) - JLCPCB Part Class: Extended Part - Package or Case Code: VSSOP-10_L3.0-W3.0-P0.50-LS4.9-BL - Manufacturer Part Number: INA228AIDGSR - Manufacturer Name: TI(德州仪器) - LCSC Part Number: C2887910 **Pins:** - A0 [pin 2] - A1 [pin 1] - ALERT [pin 3] - GND [pin 7] - IN– [pin 9] - IN+ [pin 10] - SCL [pin 5] - SDA [pin 4] - VBUS [pin 8] - VS [pin 6] ### U6 — [STM32F407VGT6](https://www.flux.ai/jecstronic/stm32f407vgt6~dz5.md) - Part Type: Microcontroller - Manufacturer Part Number: STM32F407VGT6 - Datasheet URL: https://www.st.com/content/ccc/resource/technical/document/datasheet/ef/92/76/6d/bb/c2/4f/f7/DM00037051.pdf/files/DM00037051.pdf/jcr:content/translations/en.DM00037051.pdf - Manufacturer Name: STMicroelectronics - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - BOOT0 [pin 94] - NRST [pin 14] - PA0 [pin 23] - PA1 [pin 24] - PA10 [pin 69] - PA11 [pin 70] - PA12 [pin 71] - PA13 [pin 72] - PA14 [pin 76] - PA15 [pin 77] - PA2 [pin 25] - PA3 [pin 26] - PA4 [pin 29] - PA5 [pin 30] - PA6 [pin 31] - PA7 [pin 32] - PA8 [pin 67] - PA9 [pin 68] - PB0 [pin 35] - PB1 [pin 36] - PB10 [pin 47] - PB11 [pin 48] - PB12 [pin 51] - PB13 [pin 52] - PB14 [pin 53] - PB15 [pin 54] - PB2 [pin 37] - PB3 [pin 89] - PB4 [pin 90] - PB5 [pin 91] - PB6 [pin 92] - PB7 [pin 93] - PB8 [pin 95] - PB9 [pin 96] - PC0 [pin 15] - PC1 [pin 16] - PC10 [pin 78] - PC11 [pin 79] - PC12 [pin 80] - PC13 [pin 7] - PC14 [pin 8] - PC15 [pin 9] - PC2 [pin 17] - PC3 [pin 18] - PC4 [pin 33] - PC5 [pin 34] - PC6 [pin 63] - PC7 [pin 64] - PC8 [pin 65] - PC9 [pin 66] - PD0 [pin 81] - PD1 [pin 82] - PD10 [pin 57] - PD11 [pin 58] - PD12 [pin 59] - PD13 [pin 60] - PD14 [pin 61] - PD15 [pin 62] - PD2 [pin 83] - PD3 [pin 84] - PD4 [pin 85] - PD5 [pin 86] - PD6 [pin 87] - PD7 [pin 88] - PD8 [pin 55] - PD9 [pin 56] - PE0 [pin 97] - PE1 [pin 98] - PE10 [pin 41] - PE11 [pin 42] - PE12 [pin 43] - PE13 [pin 44] - PE14 [pin 45] - PE15 [pin 46] - PE2 [pin 1] - PE3 [pin 2] - PE4 [pin 3] - PE5 [pin 4] - PE6 [pin 5] - PE7 [pin 38] - PE8 [pin 39] - PE9 [pin 40] - PH0 [pin 12] - PH1 [pin 13] - VBAT [pin 6] - VCAP_1 [pin 49] - VCAP_2 [pin 73] - VDD [pin 28] - VDD [pin 11] - VDD [pin 50] - VDD [pin 75] - VDD [pin 100] - VDD [pin 19] - VDDA [pin 22] - VREF+ [pin 21] - VSS [pin 27] - VSS [pin 99] - VSS [pin 10] - VSS [pin 74] - VSSA [pin 20] ### U7 — [BNO055](https://www.flux.ai/kicad-part-library/bno055~v1.md) - Package or Case Code: LGA-28_5.2x3.8mm_P0.5mm - Manufacturer Name: Texas Instruments Inc. - Datasheet URL: https://www.bosch-sensortec.com/media/boschsensortec/downloads/datasheets/bst-bno055-ds000.pdf - Manufacturer Part Number: BNO055 **Pins:** - ~{BOOT_LOAD_PIN} [pin 4] - ~{RESET} [pin 11] - BL_IND [pin 10] - CAP [pin 9] - COM0 [pin 20] - COM1 [pin 19] - COM2 [pin 18] - COM3 [pin 17] - GND [pin 2] - GNDIO [pin 25] - GNDIO [pin 16] - GNDIO [pin 15] - INT [pin 14] - PIN1 [pin 1] - PIN12 [pin 12] - PIN13 [pin 13] - PIN21 [pin 21] - PIN22 [pin 22] - PIN23 [pin 23] - PIN24 [pin 24] - PIN7 [pin 7] - PIN8 [pin 8] - PS0 [pin 6] - PS1 [pin 5] - VDD [pin 3] - VDDIO [pin 28] - XIN32 [pin 27] - XOUT32 [pin 26] ### U8 — [SP3485EEN](https://www.flux.ai/lcsc/sp3485een~go9j.md) - Operating Voltage: 3.3V to 5.5V - Datasheet URL: https://www.lcsc.com/datasheet/lcsc_datasheet_2402231528_UMW-Youtai-Semiconductor-Co---Ltd--SP3485EEN_C668205.pdf - Power Consumption: 300µA - Product Info Url: https://lcsc.com/product-detail/RS-485-RS-422-ICs_UMW-Youtai-Semiconductor-Co-Ltd-SP3485EEN_C668205.html - JLCPCB Part Class: Extended Part - Logic Function: Receiver - Part Type: RS-485/RS-422 ICs - Frequency: N/AHz - Manufacturer Name: UMW(友台半导体) - LCSC Part Number: C668205 - Manufacturer Part Number: SP3485EEN - Integrated Circuit Type: Transceiver - Package or Case Code: SOP-8_L5.0-W4.0-P1.27-LS6.0-BL **Pins:** - #RE [pin 2] - A [pin 6] - B [pin 7] - DE [pin 3] - DI [pin 4] - GND [pin 5] - RO [pin 1] - VCC [pin 8] ### U9 — [PC817](https://www.flux.ai/kicad-part-library/pc817~0c.md) - Manufacturer Part Number: PC817 - Package or Case Code: DIP-4_W7.62mm - Datasheet URL: http://www.soselectronic.cz/a_info/resource/d/pc817.pdf **Pins:** - ~ [pin 1] - ~ [pin 3] - ~ [pin 2] - ~ [pin 4] ### Y1 — [Crystal SMD_8MHz](https://www.flux.ai/jecstronic/crystal-smd8mhz~tvp.md) - Frequency: 8MHz - Part Type: Oscillator **Pins:** - P1 [pin 1] - P2 [pin 2] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/sammylunar/mergen-abra-rov-main-control-board~t8](https://www.flux.ai/sammylunar/mergen-abra-rov-main-control-board~t8).* --- *Generated from [https://www.flux.ai/sammylunar/mergen-abra-rov-main-control-board~t8](https://www.flux.ai/sammylunar/mergen-abra-rov-main-control-board~t8)*