4 layers42 × 50 mm
SimpleFC G
wangyeee/OpenHardware
Collections of hardware design related to my drone project.
134 parts10BSD-3-Clause
2 layers24 × 36 mm
LoRaModem
wangyeee/OpenHardware10Collections of hardware design related to my drone project.
- Size
- 24 × 36 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 48
- Nets
- 58
- Pads
- 179
- Tracks, vias
- 295, 41
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 20 Feb 2016
- Updated
- 29 Jan 2020
Overview
LoRaModem 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 24 × 36 mm with 48 parts on 58 nets, routed with 295 tracks and 41 vias.
It is built around the RA-02, 74AHC1G86SE and SPX3819S, with the TJA1050 among its other parts. Its parts include 17 capacitors, 9 diodes, 8 resistors, 6 ICs and 3 connectors. It belongs with the robots and motor control and radio and wireless boards and the STM32 boards of this library.
Main components
4
RA-02
SMD-16PLoRa ModulesAi-Thinker
74AHC1G86SE
SOT-353-40℃~+125℃ 1 1.5V~3.85V 1uA 2V~5.5V 500mV~1.65V 74AHC Series 8.8ns@5V,50pF 8mA 8mA XOR Gate SOT-353 Logic Gates ROHSDiodes IncorporatedLogic Gates
SPX3819S
--40℃~+85℃@(Ta) 1 16V 340mV@(500mA) 40uVrms 500mA 70dB@(100kHz) 90uA Fixed Over Current Protection、Over Temperature Protection、Reverse connection protection Positive - Voltage Regulators - Linear, Low Drop Out (LDO) RegulatorsSIPEXVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
TJA1050
SOIC-8SOIC-8 New Arrivals ROHSPhilips SemiconsUncategorised
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
48| Qty | Value | Footprint | References |
|---|---|---|---|
| 10 | 100nF | STD_SMD:C_0603_HandSoldering | C1, C3, C4, C8, C10, C11, C12, C13, C15, C17 |
| 3 | 1A | Diodes_SMD:D_SOD-123 | D1, D8, D9 |
| 3 | 470 | STD_SMD:R_0603_HandSoldering | R5, R6, R7 |
| 2 | 10K | STD_SMD:R_0603_HandSoldering | R2, R3 |
| 2 | 10nF | STD_SMD:C_0603_HandSoldering | C6, C16 |
| 2 | 2.2uF | STD_SMD:C_0603_HandSoldering | C5, C7 |
| 2 | CONN_01X04 | Connector:M04_SMD | J1, J3 |
| 1 | 1.5K | STD_SMD:R_0603_HandSoldering | R8 |
| 1 | 10uF | STD_SMD:C_0603_HandSoldering | C9 |
| 1 | 120 | STD_SMD:R_0603_HandSoldering | R4 |
| 1 | 1uF | STD_SMD:C_0603_HandSoldering | C14 |
| 1 | 22uF | STD_SMD:C_0805_HandSoldering | C2 |
| 1 | 47K | STD_SMD:R_0603_HandSoldering | R1 |
| 1 | 74AHC1G86 | TO_SOT_Packages_SMD:SOT-23-5 | U6 |
| 1 | 8MHz | MurataResonators:CERALOCK-CSTCE | Y1 |
| 1 | BLUE | LEDs:LED_0603 | D5 |
| 1 | CONN_01X03 | Connector:M03 | J2 |
| 1 | GREEN | LEDs:LED_0603 | D6 |
| 1 | Jumper | PCB_Misc:JUMPER_SMALL | JP1 |
| 1 | PESD3V3 | TO_SOT_Packages_SMD:SOT-23 | D2 |
| 1 | PESD3V3 | Diodes_SMD:D_SOD-323_HandSoldering | D3 |
| 1 | PESDCAN | TO_SOT_Packages_SMD:SOT-23 | D7 |
| 1 | RED | LEDs:LED_0603 | D4 |
| 1 | Ra-02 | LCC:RA0x-LCC16 | U1 |
| 1 | SPX3819 | TO_SOT_Packages_SMD:SOT-23-5 | U4 |
| 1 | STM32F103CBTx | Housings_QFP:LQFP-48_7x7mm_Pitch0.5mm | U3 |
| 1 | SWCLK | PCB_Misc:TESTPAD_SMALL | TP2 |
| 1 | SWDIO | PCB_Misc:TESTPAD_SMALL | TP1 |
| 1 | SWO | PCB_Misc:TESTPAD_SMALL | TP3 |
| 1 | TJA1050 | Housings_SOIC:SOIC-8_3.9x4.9mm_Pitch1.27mm | U5 |
| 1 | W25X40 | Housings_SOIC:SOIC-8_3.9x4.9mm_Pitch1.27mm | U2 |
Questions
How big is the LoRaModem PCB?
It measures 24 × 36 mm and has 2 copper layers, 1.6 mm thick.
What parts does the LoRaModem use?
48 parts, built around the RA-02, 74AHC1G86SE, SPX3819S and TJA1050. 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 LoRaModem KiCad files?
From the wangyeee/OpenHardware repository on GitHub, at the commit this page was made from: the board is LoRaModem/LoRaModem.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the LoRaModem 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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