4 layers36.5 × 36.5 mm
RPi Car.recovered.2026-05-17 124818
k4i70/Flight-Controller
Custom Betaflight Quadcopter PCB built in KiCad
75 parts
4 layers115.5 × 90 mm
KiKit Output
k4i70/Flight-ControllerCustom Betaflight Quadcopter PCB built in KiCad
- Size
- 115.5 × 90 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 536
- Nets
- 786
- Pads
- 2,210
- Tracks, vias
- 4,038, 762
- Pours
- 18
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 26 Aug 2026
- Updated
- 26 Aug 2026
Overview
KiKit Output is an open-source printed circuit board by k4i70, from the k4i70/Flight-Controller repository on GitHub. It is a 4-layer board of 115.5 × 90 mm with 536 parts on 786 nets, routed with 4,038 tracks and 762 vias.
It is built around the MAX7456EUI, W25Q32JVSSIQ and ICM-42688-P, with the IP4234CZ6, TLV75533PDBV and SM08B-SRSS-TB among its other parts. Its parts include 198 capacitors, 96 resistors, 48 ICs, 12 diodes and 12 connectors. It belongs with the STM32 boards of this library.
Main components
8
MAX7456EUI
TSSOP-28-EPNon-volatile configuration storage TSSOP-28-EP Video Interface ICs ROHSAnalog DevicesVideo Interface ICs
W25Q32JVSSIQ
SOIC-8-208mil-40℃~+85℃ 100,000 cycles 133MHz 1uA 2.7V~3.6V 20 Years 32Mbit 3ms SPI SOIC-8-208mil NOR FLASH ROHSWinbondNOR FLASH
ICM-42688-P
LGA-14(2.5x3)-40℃~+85℃ 1.71V~3.6V 16bit 2KB 7.5uA IMU (accelerometer + gyroscope) SPI、I2C X,Y,Z X,Y,Z ±16g ±2000dps Motion Event Detection, Synchronization, Timestamp Support LGA-14(2.5x3) Accelerometers ROHSTDK InvenSenseAccelerometers
IP4234CZ6
TSOP-6-40℃~+85℃@(Ta) 100W 100nA 3.1pF 5.5V 6V ESD Four channels IEC 61000-4-2、IEC 61000-4-5 TSOP-6 ESD and Surge Protection (TVS/ESD) ROHSNexperiaESD And Surge Protection (TVS/ESD)
TLV75533PDBV
SOT-23-5-40℃~+125℃@(Tj) 1 238mV@(500mA) 25uA 3.3V 46dB@(100kHz) 5.5V 500mA 71.5uVrms Fixed Over Current Protection、Thermal Shutdown、Input undervoltage protection Positive SOT-23-5 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTexas InstrumentsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
SM08B-SRSS-TB
Header SR 1.0 SMT side entry, 1mm pitchJSTUncategorised
SS14
SMA(DO-214AC)-55℃~+150℃ 1A 25A 300uA@40V 40V 550mV@1A Independent SMA(DO-214AC) Schottky Diodes ROHSMDDSchottky Diodes
UJ31-CH-G2-SMT-TR
SMD-25℃~+80℃ 1 20V 24P 250mA、1.25A、5A、6.25A Female Type-C USB 3.2 SMD USB Connectors ROHSCUIUSB Connectors
README
README.mdSTM32 Betaflight Flight Controller
Personal project to design my own PCB and get more familiar with microcontrollers.
Parts
536| Qty | Value | Footprint | References |
|---|---|---|---|
| 80 | NPTH | NPTH | KiKit_MB_10_1, KiKit_MB_10_2, KiKit_MB_10_3, KiKit_MB_10_4, KiKit_MB_11_1, KiKit_MB_11_2, KiKit_MB_11_3, KiKit_MB_11_4, KiKit_MB_12_1, KiKit_MB_12_2, KiKit_MB_12_3, KiKit_MB_12_4, KiKit_MB_13_1, KiKit_MB_13_2, KiKit_MB_13_3, KiKit_MB_13_4 +64 |
| 54 | TestPoint | TestPoint:TestPoint_Pad_1.0x1.0mm | TP1, TP1, TP1, TP1, TP1, TP1, TP10, TP10, TP10, TP10, TP10, TP10, TP11, TP11, TP11, TP11 +38 |
| 42 | 100nF | Capacitor_SMD:C_0201_0603Metric_Pad0.64x0.40mm_HandSolder | C16, C16, C16, C16, C16, C16, C17, C17, C17, C17, C17, C17, C18, C18, C18, C18 +26 |
| 36 | .1uF | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C10, C10, C10, C10, C10, C10, C11, C11, C11, C11, C11, C11, C12, C12, C12, C12 +20 |
| 30 | 22uF | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C3, C3, C3, C3, C3, C3, C4, C4, C4, C4, C14, C14, C14, C14, C14, C14 +14 |
| 18 | 10k | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R7, R7, R7, R7, R11, R11, R11, R11, R11, R11, R13, R13, R13, R13, R13, R13 +2 |
| 18 | 10uF | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C1, C1, C1, C1, C1, C1, C5, C5, C5, C5, C23, C23, C23, C23, C23, C23 +2 |
| 18 | 1k | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R1, R1, R1, R1, R1, R1, R2, R2, R2, R2, R2, R2, R3, R3, R3, R3 +2 |
| 12 | 100k | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R6, R6, R6, R6, R6, R6, R8, R8, R8, R8, R8, R8 |
| 12 | 100nF | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C2, C2, C2, C2, C2, C2, C6, C6, C6, C6, C6, C6 |
| 12 | 14pF | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C26, C26, C26, C26, C26, C26, C27, C27, C27, C27, C27, C27 |
| 12 | 1uF | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C24, C24, C24, C24, C24, C24, C25, C25, C25, C25, C25, C25 |
| 12 | 2.2uF | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C28, C28, C28, C28, C28, C28, C29, C29, C29, C29, C29, C29 |
| 12 | 22 | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R19, R19, R19, R19, R19, R19, R20, R20, R20, R20, R20, R20 |
| 12 | 27pF | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C32, C32, C32, C32, C32, C32, C33, C33, C33, C33, C33, C33 |
| 12 | 5.1k | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R15, R15, R15, R15, R15, R15, R16, R16, R16, R16, R16, R16 |
| 12 | 75 | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R4, R4, R4, R4, R4, R4, R5, R5, R5, R5, R5, R5 |
| 6 | 1.5k | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R14, R14, R14, R14, R14, R14 |
| 6 | 100uF | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C13, C13, C13, C13, C13, C13 |
| 6 | 10nF | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C22, C22, C22, C22, C22, C22 |
| 6 | 120R | Inductor_SMD:L_0402_1005Metric_Pad0.77x0.64mm_HandSolder | FB1, FB1, FB1, FB1, FB1, FB1 |
| 6 | 20k | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R12, R12, R12, R12, R12, R12 |
| 6 | 25mHz | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y2, Y2, Y2, Y2, Y2, Y2 |
| 6 | 27MHz | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1, Y1, Y1, Y1, Y1, Y1 |
| 6 | 3.9uH | Inductor_SMD:L_0603_1608Metric_Pad1.05x0.95mm_HandSolder | L1, L1, L1, L1, L1, L1 |
| 6 | 4.7uH | Inductor_SMD:L_0603_1608Metric_Pad1.05x0.95mm_HandSolder | L2, L2, L2, L2, L2, L2 |
| 6 | AP63203WU-7 | Package_SO:AP63203WU-7 | U3, U3, U3, U3, U3, U3 |
| 6 | AP63205WU-7 | Package_SO:AP63203WU-7 | U4, U4, U4, U4, U4, U4 |
| 6 | ICM-42688-P | ICM_42688_P (1):PQFN50P300X250X97-14N | U2, U2, U2, U2, U2, U2 |
| 6 | IP4234CZ6 | Package_TO_SOT_SMD:SC-74-6_1.55x2.9mm_P0.95mm | U9, U9, U9, U9, U9, U9 |
| 6 | MAX7456EUI_ | MAX7456EUI_ (1):SOP65P637X110-28N | U6, U6, U6, U6, U6, U6 |
| 6 | Red LED | LED_SMD:LED_0402_1005Metric_Pad0.77x0.64mm_HandSolder | D2, D2, D2, D2, D2, D2 |
| 6 | SM08B-SRSS-TB | SM08B_SRSS_TB:JST_SM08B-SRSS-TB | J3, J3, J3, J3, J3, J3 |
| 6 | SS14 | Diode_SMD:D_SMA | D1, D1, D1, D1, D1, D1 |
| 6 | STM32H743VITx | Package_QFP:LQFP-100_14x14mm_P0.5mm | U8, U8, U8, U8, U8, U8 |
| 6 | SW_Push | Button_Switch_SMD:SW_Tactile_SPST_NO_Straight_CK_PTS636Sx25SMTRLFS | SW1, SW1, SW1, SW1, SW1, SW1 |
| 6 | TLV75533PDBV | Package_TO_SOT_SMD:SOT-23-5 | U5, U5, U5, U5, U5, U5 |
| 6 | UJ31-CH-G2-SMT-TR | UJ31-CH-G2-SMT-TR:CUI_UJ31-CH-G2-SMT-TR | J2, J2, J2, J2, J2, J2 |
| 6 | W25Q32JVSS | Package_SO:SOIC-8_5.3x5.3mm_P1.27mm | U7, U7, U7, U7, U7, U7 |
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Questions
How big is the KiKit Output PCB?
It measures 115.5 × 90 mm and has 4 copper layers, 1.6 mm thick.
What parts does the KiKit Output use?
536 parts, built around the MAX7456EUI, W25Q32JVSSIQ, ICM-42688-P and IP4234CZ6. 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.
Where can I download the KiKit Output KiCad files?
From the k4i70/Flight-Controller repository on GitHub, at the commit this page was made from: the board is KiKit_Output.kicad_pcb and its schematic 3.3V.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the KiKit Output design in my own project?
Its repository states no licence, so its author keeps all rights: ask k4i70 before reusing the design.