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20 lines
408 B
C
20 lines
408 B
C
// Dario Lemus 01/oct/2026
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// HTU21D temperature and humidity sensor library
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// tested in a raspberry pi zero w
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#ifndef HTU21D_H
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#define HTU21D_H
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// commands and i2c address
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#define ADDR 0x40 //i2c address
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#define HUM 0xE5 // hold master humidity command
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#define TEMP 0xE3
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#define RESET 0xFE
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// prototype functions:
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int getTemp(int fd, double *temp);
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int getHum(int fd, double *hum);
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#endif // HTU21D_H
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