[AD learning] the course of PCB drawing in this marine vehicle competition

This is what we do for 【 The 11th aircraft competition 】 One of the three plans prepared . The third plan I am responsible for ——Arduino.
__ I originally wanted to use a paper cover （ Although it works , But a little hasty ） Integrate infrared on it , Then connect with DuPont line arduino On , But we are going to participate in the National Games , It must look better , Then I tried to draw a board to integrate the infrared receivers .

This is what I drew PCB This picture

Infrared receiving board 1.0

This is my successor Eight way responder The next one 1 plate , Refer to the suggestions of the senior students , Add silk screen to the board , The name of the board 、IO The name of the mouth , And marked Vcc and GND.

– A profound , deficiencies ：

1. components and parts It's on display Location It could be better ;
2. Silk screen The font is not large enough , also Location also Not good. , After making it , Add a card seat to cover the words ;
3.IO mouth There is no infrared receiver Number One-to-one correspondence .

Infrared receiving board 2.0

I modified the schematic diagram in this edition , Rearranged the board . Optimize the placement of devices 、 Size and position of silk screen , as well as IO Corresponding to the infrared number .

– Make persistent efforts , deficiencies :

1. components and parts It's on display Location It could be better ;
2. Made a low-level mistake , Did not check the connection of the line , As a result, several lines were not connected （“ Fly line ” It's solved ）;
3. The screen print of arrow is not obvious , The font is not large enough .

There are some low-level mistakes that should not be made

After painting, you must do it again ！ Check ！！！！！

1、Vcc Wire leakage

2、IO Wire leakage

Infrared receiving board 3.0

I'm going to throw this board again , Corrected the previous mistakes , Have made some slight progress .

Notes are for self-study only , Used to review , Not necessarily for you , If there is any mistake, please point out .