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README.md
Supported Targets | ESP32 | ESP32-C2 | ESP32-C3 | ESP32-C6 | ESP32-S2 | ESP32-S3 |
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SPI Host Driver Example
(See the README.md file in the upper level 'examples' directory for more information about examples.)
This example aims to show how to use SPI Host driver API, like spi_transaction_t
and spi_device_queue.
If you are looking for code to drive LCDs in general, rather than code that uses the SPI master, that may be a better example to look at as it uses ESP-IDFs built-in LCD support rather than doing all the low-level work itself, which can be found at examples/peripherals/lcd/tjpgd/
How to Use Example
Hardware Required
- An ESP development board, with SPI LCD
Connection :
Depends on boards. Refer to spi_master_example_main.c
No wiring is required on ESP-WROVER-KIT
Build and Flash
Run idf.py -p PORT flash monitor
to build, flash and monitor the project.
(To exit the serial monitor, type Ctrl-]
.)
See the Getting Started Guide for full steps to configure and use ESP-IDF to build projects.
Example Output
On ESP-WROVER-KIT there will be:
LCD ID: 00000000
ILI9341 detected.
LCD ILI9341 initialization.
At the meantime ESP32
will be displayed on the connected LCD screen.
Troubleshooting
For any technical queries, please open an [issue] (https://github.com/espressif/esp-idf/issues) on GitHub. We will get back to you soon.