21 lines
448 B
C
21 lines
448 B
C
/* dht11.h -- DHT11 API */
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/* Copyright (c) 2020 Renaud Fivet */
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typedef enum {
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DHT11_SUCCESS,
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DHT11_FAIL_TOUT,
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DHT11_FAIL_CKSUM
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} dht11_retv_t ;
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/* 5 .. 95 %RH, -20 .. 60 C */
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extern unsigned char dht11_humid ; /* 5 .. 95 %RH */
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extern signed char dht11_tempc ; /* -20 .. 60 C */
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extern unsigned char dht11_tempf ; /* .0 .. .9 C */
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void dht11_init( void) ;
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dht11_retv_t dht11_read( void) ;
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/* end of dht11.h */
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