4 layers42 × 50 mm
SimpleFC G
wangyeee/OpenHardware
Collections of hardware design related to my drone project.
134 parts10BSD-3-Clause
2 layers23 × 18 mm
TinyBEC
wangyeee/OpenHardware10Collections of hardware design related to my drone project.
- Size
- 23 × 18 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 18
- Nets
- 11
- Pads
- 39
- Tracks, vias
- 30, 11
- Pours
- 6
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 20 Feb 2016
- Updated
- 29 Jan 2020
Overview
TinyBEC is an open-source printed circuit board by wangyeee, from the wangyeee/OpenHardware repository on GitHub, published under the BSD-3-Clause licence. It is a 2-layer board of 23 × 18 mm with 18 parts on 11 nets, routed with 30 tracks and 11 vias.
It is built around the MP1470-MS, AO3407A and BAT20J. Its parts include 6 resistors, 3 capacitors, 2 diodes, 2 connectors and 1 IC. It belongs with the robots and motor control and radio and wireless boards and the STM32 boards of this library.
Main components
3
MP1470-MS
SOT-23-6-40℃~+85℃ 1 2A 4.5V~21V 400kHz~580kHz Adjustable Buck Buck Built-in Yes SOT-23-6 DC-DC Converters ROHSMSKSEMIDC-DC Converters
AO3407A
SOT-231 P-Channel 1.4W 1.8V 14.3nC@4.5V 30V 37mΩ@10V、52mΩ@4.5V 4.2A 700pF 75pF SOT-23 MOSFETs ROHSUMWMOSFETs
BAT20J
SOD-3231 Independent 12uA@15V 1A 23V 5A 620mV@1A SOD-323 Schottky Diodes ROHSGuangdong HottechSchottky Diodes
README
SimpleFC_G/README.mdSimpleFC_G
The SimpleFCv2 with integrated GPS receiver. Together with its 10 DoF IMU, it has full navigation capability.
WARNING: The PCB design has not been fabricated, Use with caution!
Change List (compare to SimpleFCv2)
- A UBlox ZOE-M8Q GPS receiver is added while external GPS receiver can still be used by changing solder jumpers.
- The onboard DC-DC converter is now MP1470, which supports 2~3s Li-Po.
Software
SimpleFC was originally designed to run modified version of AutoQuad, the source can be found in my fork of AutoQuad. In additional, port for PaparazziUAV is in progress. It will make SimpleFC support both fixwing and rotorcraft.
STM32F4 resource usage
The following table summarizes usage of the MCU, details such as pinout and DMA allocation can be found in the STM32CubeMX design file SimpleFCv2.ioc in the SimpleFCv2 folder.
| MCU Peripheral | Usage |
|---|---|
| ADC1 | battery monitor and two analog inputs |
| CAN2 | CAN bus |
| I2C1 | MMC5883MA magnetometer and EEPROM |
| SDIO | TF card slot |
| SPI1 | ICM20689 gyroscope/accelerometer and MS5611 barometer |
| TIM3, TIM4, TIM12 | 8 channel PWM output |
| UART4, USART2 | RC input, support serial, S.Bus or PPM |
| USART1 | telemetry |
| USART3 | GPS receiver |
| USB | DFU or CDC telemetry |
3D preview
Front
Back
Parts
18| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | M02 | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J1, J2 |
| 1 | 100K | Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder | R1 |
| 1 | 1uF | Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder | C1 |
| 1 | 22uF | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C3 |
| 1 | 22uF | Capacitor_SMD:C_1812_4532Metric_Pad1.30x3.40mm_HandSolder | C2 |
| 1 | 4.7K | Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder | R6 |
| 1 | 40.2K | Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder | R3 |
| 1 | 6.8uH | Inductor_SMD:L_Taiyo-Yuden_NR-50xx_HandSoldering | L1 |
| 1 | 680 | Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder | R4 |
| 1 | 7.68K | Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder | R5 |
| 1 | 75K | Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder | R2 |
| 1 | AO3407A | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | BAT20J | Diode_SMD:D_SOD-123 | D1 |
| 1 | MP1470 | Package_TO_SOT_SMD:TSOT-23-6 | U1 |
| 1 | RED | LED_SMD:LED_0603_1608Metric_Castellated | D2 |
The 16 most common of 18 parts.
Questions
How big is the TinyBEC PCB?
It measures 23 × 18 mm and has 2 copper layers, 1.6 mm thick.
What parts does the TinyBEC use?
18 parts, built around the MP1470-MS, AO3407A and BAT20J. 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 TinyBEC KiCad files?
From the wangyeee/OpenHardware repository on GitHub, at the commit this page was made from: the board is TinyBEC/TinyBEC.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the TinyBEC design in my own project?
Its repository publishes it under the BSD-3-Clause licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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