APM/PX4 CAN expansion module
Introduction：
Project Introduction
This module serves as an extension for the CAN bus interface of APM flight control
Project functions
When the interfaces of your flight controller are insufficient, you can connect the CAN interface of the flight controller to the CAN interface of this module, modify the wiring of the module, and connect it as you would on the flight controller. Simply enable the function on the flight controller
Project parameters
It can be connected to a buzzer, with 4 PWM outputs, LED strip, three serial ports, two I2C ports, one SPI port. C_R is connected to an analog current, C_T is connected to an analog voltage, C-R2 represents the current of the second battery if there are two batteries, and BAT2 represents the voltage of the second battery
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Rendered Image
Rendered Image
Physical diagram
wiring diagram
design drawing
Board1
schematic diagram
PCB
BOM
ID | Name | Designator | Footprint | Quantity | Manufacturer Part | Manufacturer | Supplier | Supplier Part |
|---|---|---|---|---|---|---|---|---|
one | 10kΩ | R15,R16 | R0402 | two | RC0402FR-0710KL | YAGEO (Yageo Corporation) | LCSC | C60490 |
two | 100nF | C56,C57,C58,C59,C60 | C0402 | five | CC0402KRX7R7BB104 | YAGEO (Yageo Electronics Corporation) | LCSC | C60474 |
three | TJA1051TK/3/1J | U74 | HVSON-8_L3.0-W3.0-P0.65-BL-EP | one | TJA1051TK/3/1J | NXP (NXP Semiconductors) | LCSC | C2875699 |
four | 120Ω | R56 | R0402 | one | 0402WGF1200TCE | UNI-ROYAL (Housheng) | LCSC | C25079 |
five | 100nF | C131 | C0402 | one | GRM155R71H104KE14D | muRata (Murata) | LCSC | C77020 |
six | WAFER-GH1.25-6PWB | U76,U81 | CONN-SMD_6P-P1.25_XUNPU_WAFER-GH1.25-6PWB | two | WAFER-GH1.25-6PWB | XUNPU | LCSC | C3029381 |
seven | STM32L433RCT6 | U80 | LQFP-64_L10.0-W10.0-P0.50-LS12.0-BL | one | STM32L433RCT6 | ST (STMicroelectronics) | LCSC | C160656 |
eight | BLM15PD121SN1D | L4,L5 | L0402 | two | BLM15PD121SN1D | muRata (Murata) | LCSC | C76891 |
nine | 12pF | C20,C21 | C0402 | two | 0402CG120J500NT | FH (Fenghua) | LCSC | C1547 |
ten | 8M Hz | X2 | OSC-SMD_3P-L3.2-W1.3-P1.20-L | one | CSTNE8M00GH5C000R0 | muRata (Murata) | LCSC | C341525 |
eleven | RT9013-33GB-MS | U39 | SOT-23-5_L2.9-W1.6-P0.95-LS2.8-BR | one | RT9013-33GB-MS | MSKSEMI (Mesonco) | LCSC | C7434207 |
twelve | 100nF | C126,C128 | C0603 | two | CC0603KRX7R9BB104 | YAGEO (Yageo) | LCSC | C14663 |
thirteen | 10uF | C127,C129 | C0603 | two | CL10A106KP8NNNC | SAMSUNG | LCSC | C19702 |
fourteen | 220Ω | R57,R58 | R0402 | two | 0402WGF2200TCE | UNI-ROYAL (Housheng) | LCSC | C25091 |
fifteen | XL-1608SURC-06 | LED1,LED2 | LED0603-RD_RED | two | XL-1608SURC-06 | XINGLIGHT (Cheng Xingguang) | LCSC | C965799 |
sixteen | Solder pad component | U82,U83,U84,U85,U86,U87,U88,U89,U90,U91,U92,U93,U94,U95,U97,U101,U102,U100,U99,U104,U105,U109,U108,U110,U111,U115,U116,U121,U122,U120,U119,U118,U117,U125,U124,U126,U127,U128,U129,U130,U131,U132,U133,U134,U135,U136,U137,U112,U113 | Pad d | forty-nine | ||||
seventeen | WAFER-GH1.25-4PWB | U98,U114 | CONN-SMD_4P-P1.25_XUNPU_WAFER-GH1.25-4PWB | two | WAFER-GH1.25-4PWB | XUNPU | LCSC | C3029379 |
eighteen | 1K | R106,R171,R172 | R0402 | three | ERJPA2F22R0X | PANASONIC | LCSC | C3152067 |
nineteen | S8050W | U123 | SOT-323-3_L2.0-W1.3-P1.30-LS2.1-BR | one | S8050W | CBI (Chuangji) | LCSC | C5362107 |
twenty | 1.5kΩ | R107,R108,R109,R110 | R0402 | four | 0402WGF1501TCE | UNI-ROYAL (Housheng) | LCSC | C25867 |
twenty-one | 20kΩ | R170,R17 |