31 lines
751 B
C
31 lines
751 B
C
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/**
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Quick test for sending some visible data to a SSD1306 display connected
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via I2C. This means not to test the display, but the I2C implementation.
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To run this test, add this line to board or printer config.h:
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#define I2C
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With this done, a welcome message should appear on the display. Without
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these additions, the binary size should be as small as the commit before.
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*/
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#ifdef I2C_TEST
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#include <string.h>
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#include "config_wrapper.h"
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#include "display.h"
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#include "font.h"
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static void i2c_test(void) {
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/**
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"Welcome to Teacup" is 64 pixel columns wide, entire display is
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128 columns, so we offset by 32 columns to get it to the center.
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*/
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display_text_P(1, 32, PSTR("Welcome to Teacup"));
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}
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#endif /* I2C_TEST */
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