Cypress Semiconductor CapSense CY8CKIT-022, Руководство пользователя

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CY8CKIT-022 CapSense® Liquid Level Sensing Shield Kit Guide, Doc. #: 002-09825 Rev. ** 15
Kit Hardware
2.2 Kit Assembly
Follow these assembly steps to operate the kit:
1. Remove the adhesive sticker from the back of one of the CapSense Liquid Level Sensor Flex
PCB and then paste the sensor onto the liquid container, as shown in Figure 2-5 . Center the sen-
sor on one of the flat sides so the top of the sensor is aligned with the top of the flat section. This
placement will result in the 0 mm (0%) line on the sensor being approximately 15 mm from the
bottom of the container.
Note If the sensor flex is placed too low on the container, the radius of bend on the flex tail may
cause the container to become unstable.
Figure 2-5. Placing the Sensor
2. Thoroughly press the entire sensor area to the container to ensure there are no air bubbles in the
adhesive layer. Air bubbles allow the distance between the sensor and the liquid to fluctuate.
Distance changes cause changes to the sensor’s capacitance resulting in reduced liquid level
accuracy. Air bubbles can be observed through the adhesive layer on the back of the sensor
through the bottle.
3. Connect the CapSense Liquid Level Sensing Shield onto the CY8CKIT-042 PSoC 4 Pioneer Kit
Arduino header, as shown in Figure 2-6 , and confirm if the PSoC 4 Pioneers kits jumpers are in
default positions.