Difference between revisions of "Firmware-830 Command-004"
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==SAMPLE (4, 04h)== | ==SAMPLE (4, 04h)== | ||
| − | The SAMPLE command provides a single snapshot of the data sampled from one port or all ports, whether configured for an analog sensor or a digital (I2C) sensor. Upon completion of the command the WiDig sends out the [[Firmware-830_Message-004 |SAMPLE DATA message]] (for analog sensors) or [[Firmware-830_Message-010 |I2C DATA message]] (for digital sensors), whether in host or stand-alone mode. In stand-alone mode, data from adjacent higher-numbered inputs in ghost mode will also be output. In host mode, if an analog sensor processing function is enabled and its output value is | + | The SAMPLE command provides a single snapshot of the data sampled from one port or all ports, whether configured for an analog sensor or a digital (I2C) sensor. Upon completion of the command the WiDig sends out the [[Firmware-830_Message-004 |SAMPLE DATA message]] (for analog sensors) or [[Firmware-830_Message-010 |I2C DATA message]] (for digital sensors), whether in host or stand-alone mode. In stand-alone mode, data from adjacent higher-numbered inputs in ghost mode will also be output. In host mode, if an analog sensor processing function is enabled and its output value is greater than 1023 (eg. in the case of [[Firmware-830_Command-020 |lookup tables]]), it will be output as such. |
The [BODY] of the SAMPLE command is composed of one byte - the sensor input number: | The [BODY] of the SAMPLE command is composed of one byte - the sensor input number: | ||
Revision as of 03:06, 1 May 2023
SAMPLE (4, 04h)
The SAMPLE command provides a single snapshot of the data sampled from one port or all ports, whether configured for an analog sensor or a digital (I2C) sensor. Upon completion of the command the WiDig sends out the SAMPLE DATA message (for analog sensors) or I2C DATA message (for digital sensors), whether in host or stand-alone mode. In stand-alone mode, data from adjacent higher-numbered inputs in ghost mode will also be output. In host mode, if an analog sensor processing function is enabled and its output value is greater than 1023 (eg. in the case of lookup tables), it will be output as such.
The [BODY] of the SAMPLE command is composed of one byte - the sensor input number:
| 0000xyyy: | x = 1; apply the command to all ports (yyy is ignored), ie. send 8 messages with the sensor data for each port |
| yyy = [0..7]; ports, where the first port number = 0, and the last (8th) port number = 7 |
Example:
In order to sample port 5, the following message is sent:
- 240, 125, 0 {DEV}, 4 {SAMPLE}, 4 {yyy}, 247 (F0h, 7Dh, 00h, 04h, 04h, F7h)
