Elegoo UNO R3 Manual de usuario
Elegoo 2.8 inches Touch
Screen User Manual
---Arduino version
Preface
2.8 inches Touch Screen User Manual (Arduino version) is for Arduino UNO
board and Mega 2560 board or boards compatible with UNO. Other core boards
that provide 3-5V voltage and should be connected with wires when using are not
discussed in this manual.
Catalog
1. Product introduction ..............................................................................................................1
1.1. Features........................................................................................................................... 1
1.2. Module Specifications.................................................................................................1
1.2.1. Basic Specifications........................................................................................... 1
1.2.2. Electronic Specifications..................................................................................2
1.3. Interface Definition......................................................................................................2
1.3.1. Size Specifications............................................................................................. 3
1.3.2. Pins Correspondence .......................................................................................3
1.3.3. CON1 interface ........................................................................................................4
2. Preparation................................................................................................................................4
2.1. Hardware Preparation.................................................................................................4
2.2. Software Preparation...................................................................................................6
3. Instruction..................................................................................................................................7
3.1. Import Libraries. ...........................................................................................................7
3.2. Working with UNO.......................................................................................................7
3.2.1. Example 1............................................................................................................7
3.2.2. Example 2............................................................................................................9
3.2.3. Example 3..........................................................................................................10
3.2.4. Example 4..........................................................................................................11
3.2.5. Example 5..........................................................................................................11
3.2.6. Example 6..........................................................................................................13
3.2.7. Example 7..........................................................................................................13
3.3. Working with MEGA2560.........................................................................................14
3.3.1. Example 1..........................................................................................................15
3.3.2. Other Example .................................................................................................17
1
1.Product introduction
1.1. Features
（1）Compatible with Arduino UNO and Mega2560, and can be connected directly
by inserting the pin into the interface without wire.
（2) Compatible with all kinds of 5V or 3V MCU with 5V-3.3V change-over circuit.
（3）320X240 HD resolution, can be used as a touch screen.
（4）Adopting 8-bit parallel bus, quicker and smoother refresh than SPI.
（5）Offer support with Arduino libraries, simplify program development.
（6）With Micro-SD card circuit, easy to expand the scope of the test.
1.2. Module Specifications
1.2.1. Basic Specifications
Table 1. Basic Specifications
2
1.2.2. Electronic Specifications
Table 2. Electronic Specifications
1.3. Interface Definition
Figure 1. Interface Definition
3
1.3.1. Size Specifications
Figure 2. Size Specifications
1.3.2. Pins Correspondence
Table 3. Pins Correspondence between LCD and Arduino
4
1.3.3. CON1 interface
Figure 3. CON1interface
Note: Only SD_DO, SD_DI, SD_SS, SD_SCK and Arduino are on, and the rest are independent of
Arduino's IO.
2.Preparation
2.1. Hardware Preparation
（1）A PC or a laptop
（2）A Arduino UNO board (Figure 3) or a Arduino MEGA2560 board (Figure 4).
Figure 3. UNO Figure 4. MEGA2560
（3）A Mini USB Cable (Type B)
5
Figure 6. Mini USB Cable (Type B)
（4）A 2.8 inches Touch Screen.
Figure 7. 2.8 inches Touch Screen.
（5）A micro SD card, any storage capacity is ok.
Figure 8. Micro SD card
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