2020-08-02 13:51:47 +00:00
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# ST7735 SPI Display Toolkit
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Built and tested with OrangePi Zero and ST7735 128x160 v1.1 SPI display.
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2021-03-24 12:31:07 +00:00
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## Hardware Connections
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```
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+-------------+-----------+
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| LCD pin | OPi GPIO |
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+-------------+-----------+
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| LED | 17 3.3V |
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| SCK / SCLK | 23 SCLK |
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| SDA / MOSI | 19 MOSI |
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| A0 / D/C | 13 |
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| RESET / RST | 15 |
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| CS | 24 CE.1 |
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| GND | 9 GND |
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| VCC | 1 3.3V |
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+-------------+-----------+
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```
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### GPIO Pins Reference
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```
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$ gpio readall
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+------+-----+----------+------+---+ OPi H2 +---+------+----------+-----+------+
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| GPIO | wPi | Name | Mode | V | Physical | V | Mode | Name | wPi | GPIO |
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+------+-----+----------+------+---+----++----+---+------+----------+-----+------+
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| | | 3.3V | | | 1 || 2 | | | 5V | | |
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| 12 | 0 | SDA.0 | OFF | 0 | 3 || 4 | | | 5V | | |
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| 11 | 1 | SCL.0 | OFF | 0 | 5 || 6 | | | GND | | |
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| 6 | 2 | PWM.1 | OFF | 0 | 7 || 8 | 0 | OFF | TXD.1 | 3 | 198 |
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| | | GND | | | 9 || 10 | 0 | OFF | RXD.1 | 4 | 199 |
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| 1 | 5 | RXD.2 | OFF | 0 | 11 || 12 | 0 | OFF | PA07 | 6 | 7 |
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| 0 | 7 | TXD.2 | OUT | 1 | 13 || 14 | | | GND | | |
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| 3 | 8 | CTS.2 | OUT | 1 | 15 || 16 | 0 | OFF | SDA.1 | 9 | 19 |
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| | | 3.3V | | | 17 || 18 | 0 | OFF | SCK.1 | 10 | 18 |
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| 15 | 11 | MOSI.1 | ALT2 | 0 | 19 || 20 | | | GND | | |
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| 16 | 12 | MISO.1 | ALT2 | 0 | 21 || 22 | 0 | OFF | RTS.2 | 13 | 2 |
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| 14 | 14 | SCLK.1 | ALT2 | 0 | 23 || 24 | 0 | ALT2 | CE.1 | 15 | 13 |
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| | | GND | | | 25 || 26 | 0 | OFF | PA10 | 16 | 10 |
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+------+-----+----------+------+---+----++----+---+------+----------+-----+------+
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| GPIO | wPi | Name | Mode | V | Physical | V | Mode | Name | wPi | GPIO |
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+------+-----+----------+------+---+ OPi H2 +---+------+----------+-----+------+
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```
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## Building
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```
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meson build
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ninja -C build
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```
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## Running
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TODO
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2020-08-02 13:51:47 +00:00
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## Resources
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2021-03-24 13:59:51 +00:00
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* [orangepi-xunlong/WiringOP](https://github.com/orangepi-xunlong/WiringOP) - GPIO controlling library compatible with Raspberry Pi's WiringPi
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* [dhepper/font8x8](https://github.com/dhepper/font8x8) - 8x8 pixels monospaced font
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* [vadzimyatskevich/SSD1306](https://github.com/vadzimyatskevich/SSD1306) - Similar driver for SSD1306 OLED displays
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* [michal037/driver-ST7735S](https://github.com/michal037/driver-ST7735S) - ST7735 driver
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