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