Difference between revisions of "Component: Temp / Humidity (Grove 101020019) (101020019) (Environmental)"
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==Detailed description== | ==Detailed description== | ||
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''No detailed description exists yet for this component'' | ''No detailed description exists yet for this component'' | ||
==Examples== | ==Examples== | ||
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Revision as of 10:36, 17 November 2021
Author | Matrix TSL |
Version | 1.2 |
Category | Environmental |
Contents
Temp / Humidity (Grove 101020019) component
The DHT22 temperature and humidity sensor is a popular sensor allowing the ambient temperature and relative humidity to be monitored digitally. Humidity Range = 0% - 100% +/- 2% Temperature Range = -40 - 80 Degrees C +/- 0.5 Degrees C
Detailed description
No detailed description exists yet for this component
Examples
No additional examples
Downloadable macro reference
GetTempWhole | |
Gets the whole number portion of the temperature returned by calling SampleSensor. If temperature is 15.8 degrees C then this function would return 15. | |
[[File:]] - | Return |
GetHumidityFloat | |
Gets the humidity returned by calling SampleSensor as a floating point number. If humidity is 15.8 % then this function would return 15.8. | |
[[File:]] - | Return |
GetTempString | |
Gets the temperature returned by calling SampleSensor as a string. If temperature is 15.8 degrees C then this function would return "15.8". | |
- STRING | Return |
GetHumidityString | |
Gets the humidity returned by calling SampleSensor as a string. If humidity is 15.8 % then this function would return "15.8". | |
- STRING | Return |
GetHumidityWhole | |
Gets the whole number portion of the humidity returned by calling SampleSensor. If humidity is 15.8 % then this function would return 15. | |
[[File:]] - | Return |
GetTempReal | |
Gets the real number portion of the temperature returned by calling SampleSensor. If temperature is 15.8 degrees C then this function would return 8. | |
[[File:]] - | Return |
GetHumidityReal | |
Gets the real number portion of the humidity returned by calling SampleSensor. If humidity is 15.8 % then this function would return 8. | |
[[File:]] - | Return |
SampleSensor | |
Communicates with the DHT11 sensor and receives the temperature and humidity readings. Returns 0 for success, 1 for no communication detected and 2 for checksum error. | |
- BYTE | Return |
GetTempFloat | |
Gets the temperature returned by calling SampleSensor as a floating point number. If temperature is 15.8 degrees C then this function would return 15.8. | |
[[File:]] - | Return |
Initialise | |
Starts up the I2C bus and initialises the pressure sensor ready for use. Returns 1 for a sucessful startup. Returns 0 for a failed startup or no device detected. | |
- BYTE | Return |
Initialise | |
Sets up the GSM module. Returns 0 for OK, 255 for no reply and 254 for command fail. | |
- BYTE | Return |
SampleAccel | |
Samples the accelerometer 0 = no new data, 1 = new data available | |
- BYTE | Return |
Left | |
Rotates the robot left - waits for the angle to be traversed before returning | |
- UINT | Angle |
Angle to turn in degrees | |
- VOID | Return |
LCDDrawPixel | |
Allows a single pixel on the LCD to be set or cleared | |
- BYTE | X |
X Pixel 0-127 | |
- BYTE | Y |
Y Pixel 0-31 | |
- BYTE | State |
0=White (Off), 1=Black (On) | |
- VOID | Return |
ServoSetPosition | |
Allows one of the servo positions to be assigned | |
- BYTE | Channel |
Range 0-3 | |
- BYTE | Position |
Range 0-255 | |
- VOID | Return |
CardBitmap | |
Displays a monochrome bitmap read from the card on the LCD | |
- BYTE | X |
Range 0-127 | |
- BYTE | Y |
Range 0-31 | |
- STRING | Filename |
- BYTE | Return |
CardOpen | |
Attempts to open an existing file on the SD card 255=Error, 1=File not found, 0=Open OK | |
- STRING | Filename |
- BYTE | Return |
Forwards | |
Drives the robot forwards - waits for the distance to be traversed before returning | |
- UINT | Distance |
Distance in mm | |
- VOID | Return |
ReadBearing | |
Reads the compass bearing based on the degrees clockwise from magnetic north. | |
[[File:]] - | Return |
GetConsoleHandle | |
Gets the handle to the console allowing data displaying on the panel etc. | |
[[File:]] - | Return |
LCDDrawLine | |
Allows a single pixel width line to be drawn on the LCD | |
- BYTE | X1 |
X Pixel 0-127 | |
- BYTE | Y1 |
Y Pixel 0-31 | |
- BYTE | X2 |
X Pixel 0-127 | |
- BYTE | Y2 |
Y Pixel 0-31 | |
- VOID | Return |
ServoAutoMoveToPosition | |
Allows one of the servo positions to move gradually to a new position | |
- BYTE | Channel |
Range 0-3 | |
- BYTE | Position |
Range 0-255 | |
- VOID | Return |
ReadAllValue | |
Reads a single value stored from the read all command Index dictates which sensor value to read | |
- BYTE | Index |
0=SW, 1-8=IR, 9-10=Line, 11=Light, 12=Mic, 13-15=Accel | |
- UINT | Return |
LCDBacklight | |
Allows the LCD backlight brighntess to be adjusted | |
- BYTE | Intensity |
Range 0-100, 0=Off, 1=Min Brightness, 100=Max Brightness | |
- VOID | Return |
LCDDrawRect | |
Allows a rectangle to be drawn on the LCD | |
- BYTE | X1 |
X Pixel 0-127 | |
- BYTE | Y1 |
Y Pixel 0-31 | |
- BYTE | X2 |
X Pixel 0-127 | |
- BYTE | Y2 |
Y Pixel 0-31 | |
- VOID | Return |
ReadLine | |
Reads one of the IR line sensors 0-1 0=Left, 1=Right | |
- BYTE | index |
0=Left, 1=Right | |
- UINT | Return |
ServoDisable | |
Allows one of the servo outputs 0-3 to be disabled | |
- BYTE | Channel |
Range 0-3 | |
- VOID | Return |
ServoEnable | |
Allows one of the servo outputs 0-3 to be enabled | |
- BYTE | Channel |
Range 0-3 | |
- VOID | Return |
CardReadByte | |
Reads a byte from the currently open file. Starts at the beginning of the file and auto increments to the end | |
- BYTE | Return |
CardErase | |
Attempts to delete an existing file on the SD card 255=Error, 1=File not found, 0=Delete OK | |
- STRING | Filename |
- BYTE | Return |
CardWriteByte | |
Appends a byte to the end of the currently open file | |
- BYTE | Data |
- VOID | Return |
EncoderRead | |
Reads one of the motor encoder counters. Approx 0.328296mm of travel per encoder unit. | |
- BYTE | index |
0=Left, 1=Right | |
- UINT | Return |
SetMotors | |
Sets the motor speeds without feedback Range -100 to 100 | |
[[File:]] - | Left |
Range -100 to 100 | |
[[File:]] - | Right |
Range -100 to 100 | |
- VOID | Return |
Backwards | |
Drives the robot backwards - waits for the distance to be traversed before returning | |
- UINT | Distance |
Distance in mm | |
- VOID | Return |
EncoderReset | |
Resets the motor encoder counters | |
- VOID | Return |
LCDVerbose | |
Allows the LCD to automatically report the API commands as they get processed. Default - verbose on | |
- BYTE | State |
0=Off 1=On | |
- VOID | Return |
SetProp | |
Allows the COM port property to be set from a parent component. | |
- STRING | PropName |
- ULONG | PropVal |
- VOID | Return |
CardInit | |
Attempts to startup the SD card 255=No Card, 254=Init Fail, 0=Init OK | |
- BYTE | Return |
GetProp | |
Allows the property filter for the COM port list to be copied to a parent component. | |
- STRING | PropName |
- STRING | Return |
LCDClear | |
Clears the LCD | |
- VOID | Return |