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Gitshaoxiang
78457b190e
* rename some example file * add Unit exmaple sketch comment * add module example comment
39 lines
751 B
Arduino
39 lines
751 B
Arduino
/*
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Description: Read the characters entered by CardKB Unit and display them on the screen.
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*/
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#include <Wire.h>
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#include <M5Stack.h>
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#define CARDKB_ADDR 0x5F
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void setup()
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{
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M5.begin();
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M5.Power.begin();
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Serial.begin(115200);
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Wire.begin();
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pinMode(5, INPUT);
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digitalWrite(5, HIGH);
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M5.Lcd.fillScreen(BLACK);
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M5.Lcd.setCursor(1, 10);
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M5.Lcd.setTextColor(YELLOW);
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M5.Lcd.setTextSize(2);
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M5.Lcd.printf("IIC Address: 0x5F\n");
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M5.Lcd.printf(">>");
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}
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void loop()
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{
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Wire.requestFrom(CARDKB_ADDR, 1);
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while(Wire.available())
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{
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char c = Wire.read(); // receive a byte as characterif
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if (c != 0)
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{
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M5.Lcd.printf("%c", c);
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Serial.println(c, HEX);
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// M5.Speaker.beep();
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}
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}
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// delay(10);
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}
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