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- local disp
- -- setup SPI and connect display
- local function init_spi_display()
- -- Hardware SPI CLK = GPIO14
- -- Hardware SPI MOSI = GPIO13
- -- Hardware SPI MISO = GPIO12 (not used)
- -- Hardware SPI /CS = GPIO15 (not used)
- -- CS, D/C, and RES can be assigned freely to available GPIOs
- local cs = 8 -- GPIO15, pull-down 10k to GND
- local dc = 4 -- GPIO2
- local res = 0 -- GPIO16
- local bus = 1
- spi.setup(bus, spi.MASTER, spi.CPOL_LOW, spi.CPHA_LOW, 8, 8)
- -- we won't be using the HSPI /CS line, so disable it again
- gpio.mode(8, gpio.INPUT, gpio.PULLUP)
- -- initialize the matching driver for your display
- -- see app/include/ucg_config.h
- --disp = ucg.ili9341_18x240x320_hw_spi(bus, cs, dc, res)
- disp = ucg.st7735_18x128x160_hw_spi(bus, cs, dc, res)
- end
- do
- init_spi_display()
- disp:begin(ucg.FONT_MODE_TRANSPARENT)
- disp:clearScreen()
- disp:setFont(ucg.font_ncenR12_tr);
- disp:setColor(255, 255, 255);
- disp:setColor(1, 255, 0,0);
- disp:setPrintPos(0, 25)
- disp:print("Hello World!")
- end
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