A.M. Rowsell
70973a0b14
Added the beginning of the DHT code which will likely be used in part 4 of the tutorial series. Signed-off-by: A.M. Rowsell <amrowsell@frozenelectronics.ca>
27 lines
606 B
C
27 lines
606 B
C
#include <stdint.h>
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#include "user_interface.h"
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#include "os_type.h"
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#include "osapi.h"
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#include "gpio.h"
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#include "dht.h"
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#define DHTBus BIT4
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LOCAL uint8_t ICACHE_FLASH_ATTR getBitNum(uint32_t bit) {
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uint32_t localBit = bit;
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for(uint8_t i = 0; i <= 16; i++) {
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localBit >>= i;
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if(bit & 0x01) {
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return i;
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}
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}
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return -1; // if we reached this spot we received a bad number
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}
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void ICACHE_FLASH_ATTR setupDHT(void) {
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gpio_output_set(0, DHTBus, 0, DHTBus); // set up DHTBus as active low output
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ETS_GPIO_INTR_ATTACH(func, NULL);
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}
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void ICACHE_FLASH_ATTR getDHTData(void) {
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}
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