| 337 | |
| 338 | |
| 339 | bool SGP30::getTVOCBaseline(uint16_t *TVOC) |
| 340 | { |
| 341 | _command(0x20B3); |
| 342 | if (_wire->requestFrom(_address, (uint8_t)3) != 3) |
| 343 | { |
| 344 | _error = SGP30_ERROR_I2C; |
| 345 | return false; |
| 346 | } |
| 347 | *TVOC = _wire->read() << 8; |
| 348 | *TVOC += _wire->read(); |
| 349 | uint8_t crc = _wire->read(); |
| 350 | if (_CRC8(*TVOC) != crc) |
| 351 | { |
| 352 | _error = SGP30_ERROR_CRC; |
| 353 | return false; |
| 354 | } |
| 355 | _error = SGP30_OK; |
| 356 | return true; |
| 357 | } |
| 358 | |
| 359 | |
| 360 | ///////////////////////////////////////////////////// |