Game console based on Liangshan School

The game console was designed with reference to the Lichuang Liangshan School game console expansion board, transplanted based on the original code, adapted to a 240*320 display, and added picture display and screen lighting functions
Picture display function: Picture function It reads the pictures stored in the SD card and then displays them. The picture is stored in the SD card in the form of a C language array, but when the SD card reads it, it is a text file, so when it needs to be displayed, the SD card file is called, the text file is converted into the corresponding array, and then the picture is displayed.
Screen lighting function: Because the screen brightness is so high, it can be illuminated and used as a night light.
Demand analysis
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Need a larger screen, choose tft screen, driver chip st7789v
screen debugging circuit board, spi communication, make sure the screen can work normally using
the screen driver circuit, actual measurement Possible
button options: silicone touch buttons, and capacitors added at both ends of the button for filtering.
The back of the screen shows
a charge and discharge module, the battery is a 3.7v lithium battery, and the speaker is an ordinary 4w square speaker. There is a power switch and reset on the front and back
of the game console. circuit