【ART-Pi】Robotic arm main control board +681604A

describe

1. The main task is to drive the bus servo.

   

   Main parameters of steering gear!

   

The bus servo is controlled through the serial port, and the serial port protocol is half-duplex UART. This design converts full-duplex to half-duplex by using buffer components.

The bus servo is controlled through the p1 port on the ART-PI development board.

Here is the instruction description:

Developed a program

First open the Uart1 serial port of the ART-PI development board (open the serial port through RT-Thread studio software) -> Create a new serial port program (use the example program) -> Change the serial port in the example to send strings to send hexadecimal data (Find the answer to sending hexadecimal data in the discussion) -> Debug whether the hexadecimal data sent by the serial port is complete (connect the UART1 port to the computer through a USB to serial port board, open the serial port debugging tool, and debug the hexadecimal data sent by the serial port. Whether the data is correct)-》Connect the ART-PI development board, expansion board and bus servo (a BUG was found on the expansion board, which has been corrected.)-》Complete debugging. Although the program is simple, it also takes many detours!

This expansion board is also designed with PS handle interface, serial screen interface, and servo interface. The power supply does not share the power supply with the development board to prevent the development board from running unstable.

reward:

1. The ART-PI development board applies the TR-Thread embedded real-time operating system. I learned that the operating system is more user-friendly for development, and the operating system also integrates many modules.

2.ART-PI integrates TPLINK, making development faster.

3. Learned TR-Thread Studio development and the use of Env tool.

function display

1. The robotic arm is driven by a bus servo. The main body of the robotic arm is still designed using SW.

   

   Continue to improve functions

   PS handle control, aPP control, and complete robotic arm body. Learn operating system thread calls and complete the implementation of various functions.