
BR Motor
axpaul/Avionic-Mastodonte
Mastodonte experimental rocket avionic (On-board electronics) created by Paul Miailhe, Version 2025

Sirius experimental rocket avionic (On-board electronics) created by Paul Miailhe, Version 2023/2024 launched at C'space 2024
MotorShield is an open-source printed circuit board by axpaul, from the axpaul/Avionic-Sirius repository on GitHub. It is a 4-layer board of 36 × 90 mm with 114 parts on 86 nets, routed with 711 tracks and 145 vias.
It is built around the DRV8872DDA, 74HC14 and ADUM1281BRZ, with the 1N4148WT, BSS138 and FDN360P among its other parts. Its parts include 46 resistors, 17 capacitors, 13 connectors, 7 diodes and 6 ICs.
Sirius experimental rocket avionic (On-board electronics), Version 2024 launched at C'space
CC BY-NC-SA 4.0, Copyright 2023 Miailhe Paul, all rights reserved
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Le MotorShield Controller est une carte d'actionneur conçue pour piloter deux moteurs DC. Elle intègre des circuits en pont en H et des capteurs de courant basés sur des résistances shunt, permettant la détection d'événements, la protection contre les surintensités, le contrôle PWM, ainsi que l'indication visuelle de la direction de rotation des moteurs.
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| Qty | Value | Footprint | References |
|---|---|---|---|
| 18 | 0R | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1, R3, R31, R32, R33, R34, R41, R42, R43, R45, R49, R50, R55, R56, R57, R58 +2 |
| 12 | 10K | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R9, R10, R11, R12, R13, R14, R17, R22, R27, R28, R29, R30 |
| 8 | Conn_01x02 | Connector_JST:JST_EH_B2B-EH-A_1x02_P2.50mm_Vertical | J3, J4, J5, J6, J8, J10, J12, J13 |
| 8 | SolderJumper | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | JP1, JP2, JP3, JP4, JP5, JP6, JP7, JP8 |
| 8 | TestPoint_Probe | TestPoint:TestPoint_Pad_1.0x1.0mm | TP1, TP2, TP3, TP4, TP5, TP6, TP7, TP8 |
| 7 | 100nF | Capacitor_SMD:C_0603_1608Metric | C1, C12, C13, C14, C15, C18, C20 |
| 6 | 1uF | Capacitor_SMD:C_0603_1608Metric | C6, C7, C8, C9, C10, C11 |
| 5 | 10k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R2, R39, R40, R51, R53 |
| 3 | Conn_01x04 | Connector_JST:JST_EH_B4B-EH-A_1x04_P2.50mm_Vertical | J7, J9, J11 |
| 2 | 10M | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R52, R54 |
| 2 | 20k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R37, R38 |
| 2 | 22mR | Resistor_SMD:R_Shunt_Vishay_WSK2512_6332Metric_T1.19mm | R35, R36 |
| 2 | 43k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R44, R46 |
| 2 | 47uF | Capacitor_SMD:C_0805_2012Metric | C19, C21 |
| 2 | 750R | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R61, R64 |
| 2 | Conn_01x15_Socket | Connector_PinHeader_2.54mm:PinHeader_1x15_P2.54mm_Vertical | J1, J2 |
| 2 | DRV8872DDA | Package_SO:Texas_HTSOP-8-1EP_3.9x4.9mm_P1.27mm_EP2.95x4.9mm_Mask2.4x3.1mm_ThermalVias | U5, U6 |
| 2 | INA381 | Package_SO:VSSOP-10_3x3mm_P0.5mm | IC1, IC2 |
| 2 | LED-G | LED_SMD:LED_0603_1608Metric | D5, D7 |
| 2 | LED-R | LED_SMD:LED_0603_1608Metric | D4, D6 |
| 2 | NC | Capacitor_SMD:C_0603_1608Metric | C16, C17 |
| 1 | 1N4148WT | Diode_SMD:D_SOD-523 | D1 |
| 1 | 1k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R4 |
| 1 | 74HC14 | Package_SO:SOIC-14_3.9x8.7mm_P1.27mm | U1 |
| 1 | ADuM1281 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U4 |
| 1 | BSS138 | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | Buzzer | Buzzer_Beeper:Buzzer_12x9.5RM7.6 | BZ1 |
| 1 | FDN360P | Package_TO_SOT_SMD:SOT-23 | Q2 |
| 1 | LED | LED_SMD:LED_0603_1608Metric | D2 |
| 1 | LOGO | LOGO | G*** |
| 1 | Polyfuse | Fuse:Fuse_1812_4532Metric | F1 |
| 1 | SMAJ14A | Diode_SMD:D_SMA | D3 |
The 110 most common of 114 parts.
It measures 36 × 90 mm and has 4 copper layers, 1.6 mm thick.
114 parts, built around the DRV8872DDA, 74HC14, ADUM1281BRZ and 1N4148WT. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
From the axpaul/Avionic-Sirius repository on GitHub, at the commit this page was made from: the board is MotorShield.kicad_pcb and its schematic Avionic_GPIO.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask axpaul before reusing the design.

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