CAPSENSE™ & MagSense Forum Discussions

Hi Infineon Team,

I am using cy8mbr3108 capsense. I am using linux platform and using i2cdetect utility for detecting the touch sensor over I2C. I found that sometime it is able to detect the sensor and sometimes not. If I detect it too fast, then it is able to detect, otherwise not. I learned from datasheet that it is in deep sleep mode by default. It sends NACK before going it to ACTIVE state. So, need to perform address match again!! Any way of moving device out of deep sleep mode? How to avoid polling?

Another secondary question is , lets say the device is detected once and then going to write I2C register, at that time it might not be able to write as it will be in deep sleep right?

Regards,

Kunal

Hello, 

I need some help how to start tuning with CY8CKIT-149 kit. I need to get demo working to put slider and buttons to glass overlay of 2mm thickness.

- Should i start with Auto-tuning or manual tuning? could you recommended documentation how to do tuning?

- Slider is placed to glass surface. Should i remove Acrylic overlay from slider(from dev kit)?

Best regards

Teijo

I want to tune the CapSense sensors, So for software parameters are there any prescribed values from where we need to start tuning or We have to select tuning parameters randomly(in a hit and trial manner) and then we have to further change those parameters to get the best result? Basically, How to start the tuning process of the sensor. Also please share some document to know the details about these paramters and what they signify?

Thanks

Hi,

I wanted to make a sample project of CapSense and I got to know that we have to take care of the parasitic Capacitance value. I wanted to calculate the parasitic capacitance value of the sensor and I am using GetSensorCapacitance() function to print the value but PSoC creator is throwing undefined reference to GetSensorCapacitance error in PSoC Creator. Can you tell why it is happening? How to solve the error? Also, Is there a range of Parasitic Capacitance upto which CapSense can support?

Regards D