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Panda B3 Adapter Card!

Overview

12V input for PCIe devices and control cards (the original 6-pin connector can be discarded), then stepped down to 3.3V via a ZXDN10S1205SAW converter for PCIe devices.
I'm not entirely sure if a 3.3V input is mandatory for PCIe network cards; please test it yourself.
Required components:
ZXDN10S1205SAW DC-DC module
100NF 0603 16V
, 5*7 100uF 16V surface mount capacitors,
390Ω 0603 through-hole capacitors, surface mount resistors (make sure you buy the correct ones! These are for the ZXDN10S1205SAW, 390Ω for 3.3V output!)
, XT30 connector (optional, you can directly solder wires).

Discussion group: 780323154

Panda B3 Adapter Card.mp4

PDF_Panda B3 Adapter Card! .zip

Altium Panda B3 Adapter Card! .zip

PADS_Panda B3 Adapter Card! .zip

BOM_Panda B3 Adapter Card! .xlsx

97354

snowflake

Snowflake LED, complete with code, download and use immediately. It has three button functions: white light, warm light, and RGB.

This is a secondary development based on the project https://oshwhub.com/SSP97/2020_01_03-xue-hua-deng-osh. For those who don't know how to install STVD, you can refer to my CSDN tutorial: https://blog.csdn.net/qq_33591173/article/details/133950709?spm=1001.2014.3001.5501. After installing STVD, you can directly download using STLink. Power is required for downloading. Code address: Link: https://pan.baidu.com/s/175Nr5kPvvRP3oRstVfs2Kg?pwd=0000 Extraction code: 0000

WeChat_20231102122718.mp4

PDF_Snowflakes.zip

Altium_snowflake.zip

PADS_Snowflake.zip

97355

Arduino UNO Four-Way DC Motor Driver Expansion Board

This is a four-channel DC motor expansion board designed for the Arduino UNO. It can connect to common 3P4P sensor actuators and four DC motors, simplifying wiring and power supply.

Bring out all UNO pins, using pin headers as interfaces. Each group includes one pin and VCC, GND, and is sequentially compatible with servo pins (GVS).

Also bring out three XH 2.54 ports (4P, GVSS),

and two 2.54-pitch 4P interfaces for IIC pins. You can solder pin headers, female headers, or other 2.54-pitch terminals as needed.

The motor drive module uses a black DRV8833 module (around 3 RMB), occupying 4 PWM pins and 4 digital pins. When using the motor, the corresponding control pins cannot be used for other purposes. When not using the motor, they can be connected to sensors or other devices.

The power supply can be the UNO's DC interface or soldered terminals. It is recommended that this power supply not exceed 10V, as the onboard voltage regulator chip on domestic UNO boards is of unstable quality, and the DRV8833 module has a withstand voltage of 10.8V. If controlling multiple motors, making a small car, controlling multiple servos, or using high-current servos such as the 995 or 996 servos, an external 5V power supply is required; you can also solder 5V power supply terminals for this purpose. The motor power supply is selected between 5V and VIN using a jumper cap.

Motor pins can be soldered with header pins, XH 2.54 terminals, 2.54 screw terminals, etc., as needed.

PDF_Arduino UNO Quad DC Motor Driver Expansion Board.zip

Altium_Arduino UNO Quad DC Motor Driver Expansion Board.zip

PADS_Arduino UNO Quad DC Motor Driver Expansion Board.zip

BOM_Arduino UNO Quad DC Motor Driver Expansion Board.xlsx

97356

Metering switch

PDF_Metering Switch.zip

Altium_Metering Switch.zip

PADS_Metering Switch.zip

BOM_Metering Switch.xlsx

97358

electronic

Design Files

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It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

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Update:2026-03-29 01:15:11

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