Arduino 1.77" display: Difference between revisions
From wikiluntti
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Download library: | Install and Download library: | ||
* https://adafru.it/dXk | * https://adafru.it/dXk | ||
* https://adafru.it/cBB | * https://adafru.it/cBB | ||
Sketch -> Include Library -> Add .ZIP Library | |||
== Theory: SPI protocol == | == Theory: SPI protocol == | ||
Revision as of 17:27, 3 December 2024
Introduction
Connections and Libraries
| Arduino | Display | Name | Purpose | No needed? | Constructor 2! |
|---|---|---|---|---|---|
| 3.3V | 8 LEDA | Lite | Backlight control | ||
| 10 | 7 CS | Chip Select / DC (Data/Command) | SS PIN / SPI data or command selector [SS = Slave Select] | Yes | Yes |
| 9 | 6 RS | Register Selection | MISO - Sending to Master | Yes | Yes |
| 8 | 5 RES | Reset / RST | Reset the TFT | Yes | Yes |
| 11 | 4 SDA | Serial Data | MOSI - Sending to Slave | Yes | |
| 13 | 3 SCK | SCLK - Clock Line | SPI Clock Input | Yes | |
| 5V | 2 VCC | Voltage Common Collector | |||
| GND | 1 GND | Ground | Ground |
Install and Download library:
Sketch -> Include Library -> Add .ZIP Library
Theory: SPI protocol
Serial Peripheral Interface
The SPI enabled device typically has the following pins:
- SS: A line indicating slave device selection
- MISO and MOSI (Master In Slave Out): A line for sending serial data to the Master device
- SCK/SCLK (Serial Clock): A clock signal generated by the Master device to synchronize data transmission, so the slave device knows when to read the input.
- RESET: A line for restarting the transmission process.
