/////////////////////////////////////////// READ THE SENSOR
| 71 | // READ THE SENSOR |
| 72 | // |
| 73 | int CHT8305::read() |
| 74 | { |
| 75 | // do not read too fast |
| 76 | if (millis() - _lastRead < 1000) |
| 77 | { |
| 78 | return CHT8305_ERROR_LASTREAD; |
| 79 | } |
| 80 | _lastRead = millis(); |
| 81 | |
| 82 | uint8_t data[4] = {0, 0, 0, 0 }; |
| 83 | _readRegister(CHT8305_REG_TEMPERATURE, &data[0], 4); |
| 84 | |
| 85 | uint16_t tmp = data[0] << 8 | data[1]; |
| 86 | _temperature = tmp * (165.0 / 65535.0) - 40.0; |
| 87 | tmp = data[2] << 8 | data[3]; |
| 88 | _humidity = tmp / 655.35; // == / 65535 * 100% |
| 89 | |
| 90 | if (_tempOffset != 0.0) _temperature += _tempOffset; |
| 91 | if (_humOffset != 0.0) _humidity += _humOffset; |
| 92 | |
| 93 | return CHT8305_OK; |
| 94 | } |
| 95 | |
| 96 | |
| 97 | int CHT8305::readTemperature() |
no outgoing calls
no test coverage detected