4 layers90 × 70 mm
InclinationMeter
soldernerd/InclinationMeter
A battery-powered, Bluetooth-enabled precision electronic level instrument for machine tool geometry inspection and granite surface plate qualification.
118 parts
4 layers40 × 40 mm
Drone
espcaa/droneeee- Size
- 40 × 40 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 127
- Nets
- 122
- Pads
- 413
- Tracks, vias
- 573, 86
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 15 Dec 2025
- Updated
- 30 Dec 2025
Overview
Drone is an open-source printed circuit board by espcaa, from the espcaa/droneeee repository on GitHub. It is a 4-layer board of 40 × 40 mm with 127 parts on 122 nets, routed with 573 tracks and 86 vias.
It is built around the AT7456E, LM43603DSUR and W25Q128JVSIQ TR, with the ICM-42688-P, LP5907MFX-3.3/NOPB(MS) and TLV75533PDBVR-MS among its other parts. Its parts include 47 capacitors, 24 connectors, 22 resistors, 10 ICs and 7 diodes. It belongs with the robots and motor control boards and the STM32 boards of this library.
Main components
12
AT7456E
HTSSOP-28-EP-40℃~+85℃ 3.15V~5.25V Built-in+External HTSSOP-28-EP Microcontrollers (MCU/MPU/SOC) ROHSZHONGKEWEIMicrocontrollers (MCU/MPU/SOC)
LM43603DSUR
SON-16-EP(4x5)-40℃~+125℃@(TJ) 1 1V~28V 2.2MHz 3.5V~36V 3A Adjustable Buck Buck Built-in Yes SON-16-EP(4x5) DC-DC Converters ROHSTexas InstrumentsDC-DC Converters
W25Q128JVSIQ TR
SOIC-8-208mil-40℃~+85℃ 100,000 cycles 128Mbit 133MHz 1uA 2.7V~3.6V 20 Years 3ms Power-on reset、Hardware Write Protection、Software Write Protection、Write enable latch、Absolute Write Protection、Power lock protection SPI SOIC-8-208mil NOR FLASH ROHSWinbond ElecNOR 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
LP5907MFX-3.3/NOPB(MS)
SOT-23-5-40℃~+125℃@(Tj) 1 180mV@(300mA) 2uA 3.3V 300mA 5.5V Fixed Over Current Protection、Over Temperature Protection、Enable Positive SOT-23-5 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSMSKSEMIVoltage Regulators - Linear, Low Drop Out (LDO) RegulatorsTLV75533PDBVR-MS
SOT-23-5SOT-23-5 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSMSKSEMIUncategorised
AO3400A
SOT-23-55℃~+150℃ 1 N-channel 1.45V 1.4W 30V 48mΩ@2.5V 5.7A 50pF 630pF 75pF 7nC@10V N-Channel SOT-23 MOSFETs ROHSAlpha & Omega SemiconductorMOSFETs
X50328MSB2GI
SMD5032-2P-40℃~+85℃ 20pF 80Ω 8MHz Crystal Oscillator ±10ppm ±20ppm SMD5032-2P Crystals ROHSYXCCrystals
KT-0805Y
0805-40℃~+85℃ 1.8V~2.4V 120° 175mcd 40mW 584nm~594nm 596nm Discrete Diode Water Clear Yellow 0805 LED Indication - Discrete ROHSHubei KENTO ElecLED Indication - DiscreteKT-0805G
0805-40℃~+85℃ 100mW 120° 2.6V~3.1V 430mcd 513nm~528nm 525nm 5mA Discrete Diode Emerald Green Water Clear 0805 LED Indication - Discrete ROHSHubei KENTO ElecLED Indication - Discrete
SMAJ30A
DO-214AC(SMA)-55℃~+150℃ 30V 33.3V 400W 48.4V 5uA 8.3A TVS Unidirectional DO-214AC(SMA) ESD and Surge Protection (TVS/ESD) ROHSGOODWORKESD And Surge Protection (TVS/ESD)
XL2EL89CSI-111YLC-27M
SMD3225-4P-40℃~+85℃ 20pF 27MHz 50Ω Crystal Oscillator ±10ppm ±20ppm SMD3225-4P Crystals ROHSYXCCrystals
Parts
127| Qty | Value | Footprint | References |
|---|---|---|---|
| 19 | 100nf | Capacitor_SMD:C_0402_1005Metric | C1, C4, C11, C12, C15, C16, C21, C22, C25, C26, C28, C29, C30, C32, C38, C41 +3 |
| 19 | Conn_01x01 | footprint_lib:signal_pad | J1, J3, J4, J5, J6, J10, J11, J13, J14, J15, J16, J17, J18, J23, J24, J25 +3 |
| 6 | 10k | Resistor_SMD:R_0402_1005Metric | R1, R2, R3, R4, R13, R17 |
| 5 | 1k | Resistor_SMD:R_0402_1005Metric | R9, R11, R18, R19, R21 |
| 4 | 1uf | Capacitor_SMD:C_0805_2012Metric | C13, C14, C23, C24 |
| 4 | 22pf | Capacitor_SMD:C_0402_1005Metric | C9, C10, C18, C48 |
| 4 | 22uf | Capacitor_SMD:C_1206_3216Metric | C17, C31, C46, C50 |
| 4 | Conn_01x03 | footprint_lib:led_ring | J19, J20, J21, J22 |
| 3 | 1uf | Capacitor_SMD:C_0402_1005Metric | C8, C39, C40 |
| 3 | 2.2uf | Capacitor_SMD:C_0402_1005Metric | C2, C3, C27 |
| 2 | 17.8k | Resistor_SMD:R_0402_1005Metric | R7, R22 |
| 2 | 1M | Resistor_SMD:R_0402_1005Metric | R6, R23 |
| 2 | 1uF | Capacitor_SMD:C_0402_1005Metric | C37, C47 |
| 2 | 2.2uF | Capacitor_SMD:C_0402_1005Metric | C20, C45 |
| 2 | 2.2uH | easyeda2kicad:IND-SMD_L4.8-W4.5 | L1, L2 |
| 2 | 22uf | Capacitor_SMD:C_0805_2012Metric | C33, C34 |
| 2 | 33pf | Capacitor_SMD:C_0402_1005Metric | C35, C36 |
| 2 | 470nf | Capacitor_SMD:C_0603_1608Metric | C19, C44 |
| 2 | 5.1k | Resistor_SMD:R_0402_1005Metric | R15, R16 |
| 2 | 75 | Resistor_SMD:R_0603_1608Metric | R10, R14 |
| 2 | LED | LED_SMD:LED_0603_1608Metric | D2, D5 |
| 2 | LM43603DSUR | easyeda2kicad:SON-16_L5.0-W4.0-P0.50-TL-EP | U1, U11 |
| 2 | LM66100DCKR | easyeda2kicad:SC-70-6_L2.0-W1.3-P0.65-LS2.1-BL | U9, U10 |
| 2 | NPN | Package_TO_SOT_SMD:SOT-416 | Q2, Q3 |
| 2 | SW_Push | easyeda2kicad:SW-SMD_L3.9-W3.0-P4.45 | SW1, SW2 |
| 1 | 100k | Resistor_SMD:R_0402_1005Metric | R12 |
| 1 | 127k | Resistor_SMD:R_0402_1005Metric | R24 |
| 1 | 249k | Resistor_SMD:R_0402_1005Metric | R5 |
| 1 | AO3400A | easyeda2kicad:SOT-23-3_L2.9-W1.3-P1.90-LS2.4-BR | Q1 |
| 1 | AT7456E | easyeda2kicad:TSSOP-28_L9.7-W4.4-P0.65-LS6.4-BL-EP-2 | U7 |
| 1 | BUZZER+ | footprint_lib:signal_pad | TP1 |
| 1 | BUZZER- | footprint_lib:signal_pad | TP2 |
| 1 | C115962 | easyeda2kicad:CRYSTAL-SMD_L5.0-W3.2 | Y1 |
| 1 | C2296 | easyeda2kicad:LED0805-R-RD | D3 |
| 1 | C2297 | easyeda2kicad:LED0805-R-RD | D1 |
| 1 | Conn_01x08 | Connector_JST:JST_SH_SM08B-SRSS-TB_1x08-1MP_P1.00mm_Horizontal | J2 |
| 1 | D_Schottky | Diode_SMD:D_SOD-323 | D4 |
| 1 | D_Schottky | easyeda2kicad:SMA_L4.3-W2.6-LS5.2-RD | D6 |
| 1 | FerriteBead | Inductor_SMD:L_0603_1608Metric | FB1 |
| 1 | ICM-42688-P | easyeda2kicad:LGA-14_L3.0-W2.5-P0.50-TL | U5 |
| 1 | LP5907MFX-3.3/NOPB | easyeda2kicad:SOT-23-5_L3.0-W1.7-P0.95-LS2.8-BR | U6 |
| 1 | SMAJ30A | Diode_SMD:D_SMA | D8 |
| 1 | STM32F405RGTx | Package_QFP:LQFP-64_10x10mm_P0.5mm | U4 |
| 1 | TLV75533PDBVR | easyeda2kicad:SOT-23-5_L3.0-W1.7-P0.95-LS2.8-BR | U2 |
| 1 | TYPE-C 16PIN 2MD(073) | easyeda2kicad:USB-C-SMD_TYPE-C-6PIN-2MD-073 | USB1 |
| 1 | W25Q128JVSIQTR | easyeda2kicad:SOIC-8_L5.3-W5.3-P1.27-LS8.0-BL | U3 |
| 1 | XL2EL89CSI-111YLC-27M | easyeda2kicad:CRYSTAL-SMD_4P-L3.2-W2.5-BL_SIT8008BI | X1 |
The 123 most common of 127 parts.
Questions
How big is the Drone PCB?
It measures 40 × 40 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Drone use?
127 parts, built around the AT7456E, LM43603DSUR, W25Q128JVSIQ TR and ICM-42688-P. 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 Drone KiCad files?
From the espcaa/droneeee repository on GitHub, at the commit this page was made from: the board is src/hardware/fc/drone.kicad_pcb and its schematic src/hardware/fc/drone.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Drone design in my own project?
Its repository states no licence, so its author keeps all rights: ask espcaa before reusing the design.
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