| 122 | |
| 123 | |
| 124 | bool SGP30::measureTest() |
| 125 | { |
| 126 | uint16_t rv = 0; |
| 127 | _command(0x2032); |
| 128 | delay(220); // Page 11 |
| 129 | if (_wire->requestFrom(_address, (uint8_t)3) == 3) |
| 130 | { |
| 131 | rv = _wire->read() << 8; |
| 132 | rv += _wire->read(); |
| 133 | uint8_t crc = _wire->read(); |
| 134 | if (_CRC8(rv) != crc) |
| 135 | { |
| 136 | _error = SGP30_ERROR_CRC; |
| 137 | return false; |
| 138 | } |
| 139 | _error = SGP30_OK; |
| 140 | return rv == 0xD400; |
| 141 | } |
| 142 | _error = SGP30_ERROR_I2C; |
| 143 | return false; |
| 144 | } |
| 145 | |
| 146 | |
| 147 | ///////////////////////////////////////////////////// |