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Fix SHT4x detection by reading unique serial nubmer (#8525)

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This commit is contained in:
Dmitry Ivanishkin
2025-11-03 21:17:52 +07:00
committed by GitHub
parent 7def82595d
commit 0a124b7f3d
1 changed files with 6 additions and 6 deletions
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12
src/detect/ScanI2CTwoWire.cpp
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@@ -106,6 +106,7 @@ uint16_t ScanI2CTwoWire::getRegisterValue(const ScanI2CTwoWire::RegisterLocation
if (i2cBus->available()) if (i2cBus->available())
i2cBus->read(); i2cBus->read();
} }
LOG_DEBUG("Register value: 0x%x", value);
return value; return value;
} }
@@ -377,14 +378,13 @@ void ScanI2CTwoWire::scanPort(I2CPort port, uint8_t *address, uint8_t asize)
} }
case SHT31_4x_ADDR: // same as OPT3001_ADDR_ALT case SHT31_4x_ADDR: // same as OPT3001_ADDR_ALT
case SHT31_4x_ADDR_ALT: // same as OPT3001_ADDR case SHT31_4x_ADDR_ALT: // same as OPT3001_ADDR
registerValue = getRegisterValue(ScanI2CTwoWire::RegisterLocation(addr, 0x89), 2); registerValue = getRegisterValue(ScanI2CTwoWire::RegisterLocation(addr, 0x7E), 2);
if (registerValue == 0x11a2 || registerValue == 0x11da || registerValue == 0x11f3 || registerValue == 0xe9c || if (registerValue == 0x5449) {
registerValue == 0xc8d) {
type = SHT4X;
logFoundDevice("SHT4X", (uint8_t)addr.address);
} else if (getRegisterValue(ScanI2CTwoWire::RegisterLocation(addr, 0x7E), 2) == 0x5449) {
type = OPT3001; type = OPT3001;
logFoundDevice("OPT3001", (uint8_t)addr.address); logFoundDevice("OPT3001", (uint8_t)addr.address);
} else if (getRegisterValue(ScanI2CTwoWire::RegisterLocation(addr, 0x89), 2) != 0) { // unique SHT4x serial number
type = SHT4X;
logFoundDevice("SHT4X", (uint8_t)addr.address);
} else { } else {
type = SHT31; type = SHT31;
logFoundDevice("SHT31", (uint8_t)addr.address); logFoundDevice("SHT31", (uint8_t)addr.address);