CAPSENSE™ & MagSense Forum Discussions
Good morning everyone, I have a system with Psoc4100S-Plus, VDDA at 5V and VDDD at 3.3V.
The CapSense block is powered by VDDA.
Why is the Tx signal for CSX mode 3.3V?
Can it be set to 5V of VDDA?
What is the process rule of PSoC4000T? Is it same as PSoC4 series(130nm)?
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Show LessHi,
I was was researching input methods/switches for desktop use and I stumbled across this device https://www.native-instruments.com/en/products/maschine/production-systems/maschine-plus/ . I was able to interact with this device and what caught my interest the most were the (presumably) capacitive pads (the 4x4 grid with big rectangular buttons). They felt super responsive and I wanted to try and make a keyboard using similar type of input. I am confused, however, as to what components I would need for that project. The ones i'm unsure about are the buttons (I had a look at the MBR3 evaluation kit but I can't tell how the buttons are construted) that would sit behind the block of plastic (or other appropriate material similar to the one on the maschine device - I do want these to protrude out similar to keys on a keyboard), the touch microcontrollers, and then microcontrollers that are collecting the output from these. Eventually I want to go up to a tkl design which uses 108 keys. I also care about latency and reliability so a 1kHz polling would be expected (although I would consider designs up to 10kHz).
I am completely green when it comes to pcb design so I'd appreciate any help
Show LessIs there any information on the frequency attenuation of TLE4973 for CRTF values for different busbar sizes?
For example, in vertical mode, Busbar width is 18mm, thickness is 3mm, other sizes are also available.
What are the CRTF values at DC, AC@1kHz, AC@2kHz, and AC@10kHz?
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Show LessWe have experience tuning PSoC1 and PSoC4 non-MAX ICs to sense through thick gloves or even 5mm+ of cover glass. However, we are still learning about the CapSENSE 5 capabilities found in the PSoC4 MAX. Using the Pioneer kit, I've been able to overlay about 4mm of cover glass on the touchpad found on the expansion board and still get good response, but haven't experimented further. Has anyone out there explored the limits of what's possible for sensing distance using the PSoC4 MAX? Anyone hit 10mm? Obviously, this will be dependent on sensor design/construction.
Show LessI have summarized a few of the more central evaluation points for this feature of level detection, and I hope to discuss them together:
1. The cost of the level detection program (do not answer this if you are not sure)
2. Maximum detection range.
3. Types of liquids (conductive liquids (molten metals, ion-containing solutions), non-conductive liquids, organic solvents.
4. Type of container (container wall thickness requirements, container conductivity requirements).
Let's say I want to check the water depth of a fish tank, then can I accept the cost. If I want to check the oil level of a fuel tank, can I use a metal tank + organic solvent? I want to detect the height of the soldering furnace, then the molten metal can be used. I have encountered a need to detect the level of molten metal, it seems that the final use of laser distance measurement. I know that more accurate detection and identification of foam is an advantage of this model, but is it only suitable for simple applications such as washing machines and coffee makers.
smartconx_target@Q!w2e3r4t5y6u7i8o9p0||/t5/CAPSENSE-MagSense/PSOC-4000T%E6%B6%B2%E4%BD%8D%E6%A3%80%E6%B5%8B%E6%96%B9%E6%A1%88%E7%9B%B8%E5%85%B3%E7%9A%84%E4%B8%80%E4%BA%9B%E7%96%91%E9%97%AE/td-p/712167
Show Less使用CY8CKIT-041S-MAX練習Capsense button.
使用程式修改cy_capsense_tuner.widgetContext[i].snsClk, CSD button有正確反映充電時間增加的變化.
CSX button卻呈現奇怪的狀況, snsClk從8開始增加, 但raw data永遠都是在snsClk=8時最大, 不太合理.
使用Capsense Tuner測試, CSX buttton則會有個最適合的snsClk, 過多或過小的snsClk都會導致raw data減少.
請問在程式碼中該如何修改CSX button的snsClk, 以產生正確的效果?
Show LessGood morning.
I have a problem with the CY8cmbr3108. I calibrated the touch with EZ Clicka and everything looked correct, but the moment you put the gpio into strong mode the touch stops working and the app gives an error message in the button capacity.
In addition I added a pull-up resistor on the OUT output for measurements. Below I am uploading screenshots of the message in the app, as well as a snippet of the schematic. I also noticed that changing the option in the global configuration from open dren to pages caused the same problem.
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Dear supporter,
Are there any other documents on 5th generation CAPSENSE™ other than CAPSENSE™ Design Guide ?
I would like to know if there are any documents that summarize the differences between the 5th generation and other generations of CAPSENSE™ architecture.
Best Regards,
Ryusei Kodama
Show LessI am using CY8c4246axi-M445. I have 8 capsense touch pads which are circular and of 12mm size. All other parameters are as per norms and in accordance with capsense pdf. I am using smartsense and auto tuning option.
When I use 2.5 mm layer, all 8 buttons work properly. Instead, If I place a layer of 4 mm, one button stops sensing (for e.g. button 1) and rest 7 buttons work fine. Also, If I change sensitivity option in 'scan order' from 4 to 2, then some other button (for e.g button 7) stops functioning, while other buttons working fine including button 1.
Does sensitivity number have random impact on touch sensing? Is there any other setting that I need to change?
Shall I have to use manual instead of auto tuning or decrease the layer thickness to less than 4mm?
Please guide.
Thank you.
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