Hi, I'm an electronics engineer, but I love the way you are approaching things. Your sensors are awesome. Keep up the good work and your subscribers will come soon.
Very interesting and useful, this is a small sensor. I wonder if to create a DIY force sensor with a size larger than 4x6 inches, a larger resistor is needed? Tks for your video
You used a change in resistance you said right. I had an idea similar but would used the change in capacitance of a material in-between two plates have a known compressive value ( basically a springy dielectric) and I thought if I made this into a tank circuit and set it 7p to oscillate I should be able to detect very sensitive pressure changes. I would be interested in any experience with something similar or problems one might see with my design. My biggest fear is it might be too sensitive and pick up even mild changes in air pressure since after all its similar in fashion to old school condenser microphones
I'm not sure I understand what it is you want to make, so can't help you with advice. But you should just try to build it and see how it goes. Best way to test your ideas 💡
@9:11 interesting . I suppose if you had multiple sensors you could use a multiplexer chip as input for all those sensors, and then have its single output going to this one voltage divider circuit to keep everything really simple. Nice. Replace that resistor with a variable pot and you could even fine tune the circuit according to your maxim force.
You're exactly right. In the next video I use this sensor to make a 16 pad instrument, with a multiplexer and single voltage divider: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-X-mxTYgY9lQ.html
Hi. I noticed that your baseline voltage is high. If you mentioned the solution I missed it and I apologize but you can add layers of velostat to increase the range.
Hi! I loved your project, it was all I needed, but I noticed that when you open the serial monitor the value of velostat does not stop varying even if you are keeping in touch with it ... how do you solve it? Congratulations for the initiative!
Yes, you're right. These DIY sensors are not very stable. I always apply a software filter if I want to use them in an instrument. There are many different ways, try a Google search for "analogRead filter" or "Arduino smoothing library". Happy making
Hey man! im looking for help to develop a fun DIY Midi sensor instrument and have the funds to help make it happen. How can best reach you to share deets?
Hi dude, since he didn't reply to you for whatever reason, I found a link that may help you. www.kobakant.at/DIY/?p=381 In this link, the article talks about how "some" anti-static bags have piezoelectric properties as velostat bags. I hope this helps.
Hi, could this method be used to make a softer sensor that could wrap around something? Or is there some principle that links you to two flat surfaces?
You might be able to make a curved sensor with this technique, but I think it will be difficult. You could try to make a narrow sensor along the length if the cylinder, rather than a wide one which wraps around, to minimize bending of the sensor layers. But really, I'd recommend a capacitive sensor for your cup. Slightly different functionality, byt you can make it any shape you want.
@@KontinuumLAB Thank you for taking the time to reply. I know I said cup but my application would be something more like the tip of a stylus. It's not about the tip touching a screen though. I'm trying to pick up when the tip touches down on any surface. I thought I could maybe wrap the tip of a pen with a material similar to yours but it sounds like that wouldn't work from what you're telling me. I don't think a piezo would work, but I haven't looked into a capacitive sensor. For a moment it sounded like wrapping the tip of a pen/stylus in a force sensitive material would've done the trick. Thanks anyway!
@@jamesonvparker Unless you need pressure sensitivity, then a small mechanical push button (membrane-type) is the obvious way to make that kind of stylus tip.
I have a project Im working on, and I looking for somebody who have the knowledge to help me to put it together.. Please let me know if you can help me.. I wont ask as a favor, I would pay for your effort Thank you..
