CY3271-EXP1 Cypress Semiconductor Corp, CY3271-EXP1 Datasheet - Page 27

• Manufacturer Part Number: CY3271-EXP1
• Description: KIT CYFI ENV SENSING
• Manufacturer: Cypress Semiconductor Corp
• Series: PSoC, CyFir
• Type: PSoC, FirstTouchr

Specifications of CY3271-EXP1

• Frequency: 2.4GHz
• Silicon Manufacturer: Cypress
• Silicon Core Number: CY3271
• Kit Application Type: Sensing - Touch / Proximity
• Application Sub Type: Capacitive Touch
• Silicon Family Name: PSoC
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• For Use With/related Products: CY3271
• Lead Free Status / Rohs Status: Supplier Unconfirmed
• Other names: 428-2275

5.2
CY3271 EXP1 Environmental Sensing Kit, Spec. # 001-49259 Rev. **
Calibrating the Sensor
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The Calibrate Sensor window is where you calibrate the sensor.
Figure 5-4. Calibrate Sensor Window
SCD allows you to calibrate any sensor in the system using linear calibration
SCD sensor calibration is based on data pairs (raw value, adjusted value)
To register a calibration data pair, the last reported raw value from a sensor is displayed. You are
prompted to adjust the value.
When you begin to calibrate a sensor, specify at least one calibration data pair. You can choose
not to calibrate the sensor or you can calibrate the sensor using at least one calibration data pair.
There is no upper limit on the number of data pairs; more data pairs mean more accurate calibra-
tion.
If you provide one data pair, SCD computes the calibration equation of the form y = x + b using
the provided data pair.
Calibrated Value = Raw Value + Offset
If you provide two or more data pairs, SCD computes the calibration equation of the form
y = mx + b using a least squares best fit of the provided data:
Calibrated Value = (Slope)*(Raw Value) + Offset
This calibration equation is used to calibrate all incoming raw data from that sensor before dis-
playing it in SCD.
SCD records both raw and calibrated data for each sensor in its data log.
Calibrating Sensors
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