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try to detect dfrobot station to tell it apart from an ublox gps. #5393

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merged 1 commit into from
Nov 23, 2024
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try to detect dfrobot station to tell it apart from an ublox gps. #5393

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20 changes: 17 additions & 3 deletions src/detect/ScanI2CTwoWire.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -314,13 +314,27 @@ void ScanI2CTwoWire::scanPort(I2CPort port, uint8_t *address, uint8_t asize)
break;
case INA3221_ADDR:
registerValue = getRegisterValue(ScanI2CTwoWire::RegisterLocation(addr, 0xFE), 2);
LOG_DEBUG("Register MFG_UID: 0x%x", registerValue);
LOG_DEBUG("Register MFG_UID FE: 0x%x", registerValue);
if (registerValue == 0x5449) {
LOG_INFO("INA3221 sensor found at address 0x%x", (uint8_t)addr.address);
type = INA3221;
} else {
LOG_INFO("DFRobot Lark weather station found at address 0x%x", (uint8_t)addr.address);
type = DFROBOT_LARK;
/* check the first 2 bytes of the 6 byte response register
LARK FW 1.0 should return:
RESPONSE_STATUS STATUS_SUCCESS (0x53)
RESPONSE_CMD CMD_GET_VERSION (0x05)
RESPONSE_LEN_L 0x02
RESPONSE_LEN_H 0x00
RESPONSE_PAYLOAD 0x01
RESPONSE_PAYLOAD+1 0x00
*/
registerValue = getRegisterValue(ScanI2CTwoWire::RegisterLocation(addr, 0x05), 2);
LOG_DEBUG("Register MFG_UID 05: 0x%x", registerValue);
if (registerValue == 0x5305) {
LOG_INFO("DFRobot Lark weather station found at address 0x%x", (uint8_t)addr.address);
type = DFROBOT_LARK;
}
// else: probably a RAK12500/UBLOX GPS on I2C
}
break;
case MCP9808_ADDR:
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