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Merge pull request #12256 from AlfaBravoX/patch-2

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Improving SI7021 reading reliability by adjusting timers
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Theo Arends 2021-06-01 16:28:42 +02:00 committed by GitHub
commit e59ce3da97
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1 changed files with 2 additions and 2 deletions
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tasmota/xsns_06_dht.ino
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@ -97,7 +97,7 @@ bool DhtRead(uint32_t sensor)
delayMicroseconds(50); delayMicroseconds(50);
break; break;
case GPIO_SI7021: // iTead SI7021 case GPIO_SI7021: // iTead SI7021
delayMicroseconds(20); // See: https://github.com/letscontrolit/ESPEasy/issues/1798 delayMicroseconds(30); // See: https://github.com/letscontrolit/ESPEasy/issues/1798 and https://github.com/arendst/Tasmota/issues/12180
break; break;
} }
@ -136,7 +136,7 @@ bool DhtRead(uint32_t sensor)
if (DhtWaitState(sensor, 0) && DhtWaitState(sensor, 1) && DhtWaitState(sensor, 0)) { if (DhtWaitState(sensor, 0) && DhtWaitState(sensor, 1) && DhtWaitState(sensor, 0)) {
for (i = 0; i < 40; i++) { for (i = 0; i < 40; i++) {
if (!DhtWaitState(sensor, 1)) { break; } if (!DhtWaitState(sensor, 1)) { break; }
delayMicroseconds(35); // Was 30 delayMicroseconds(32); // Was 30
if (digitalRead(Dht[sensor].pin)) { if (digitalRead(Dht[sensor].pin)) {
dht_data[i / 8] |= (1 << (7 - i % 8)); dht_data[i / 8] |= (1 << (7 - i % 8));
} }