Using the MPR121 capacitive touch sensor module to make a simple musical instrument
New MPR121 Breakout V12 Capacitive Touch Sensor Controller Module I2C keyboard http://www.ebay.com/itm/-/201086257309
2PCS IIC I2C Level Conversion Module Sensor 5V-3V System For Arduino 5V to 3V pic.twitter.com/7AycJc2k8b http://www.ebay.com/itm/-/400851409352
NEW UNO R3 ATmega328P CH340 Mini USB Board for Compatible-Arduino pic.twitter.com/j8TS6zbxFU http://www.ebay.com/itm/NEW-UNO-R3-ATmega328P-CH340-Mini-USB-Board-for-Compatible-Arduino-/311155383820
https://learn.adafruit.com/adafruit-mpr121-12-key-capacitive-touch-sensor-breakout-tutorial/overview
http://www.adafruit.com/datasheets/MPR121.pdf
https://github.com/adafruit/Adafruit_MPR121_Library
http://arduino.cc/en/Reference/Tone
New MPR121 Breakout V12 Capacitive Touch Sensor Controller Module I2C keyboard http://www.ebay.com/itm/-/201086257309
2PCS IIC I2C Level Conversion Module Sensor 5V-3V System For Arduino 5V to 3V pic.twitter.com/7AycJc2k8b http://www.ebay.com/itm/-/400851409352
NEW UNO R3 ATmega328P CH340 Mini USB Board for Compatible-Arduino pic.twitter.com/j8TS6zbxFU http://www.ebay.com/itm/NEW-UNO-R3-ATmega328P-CH340-Mini-USB-Board-for-Compatible-Arduino-/311155383820
https://learn.adafruit.com/adafruit-mpr121-12-key-capacitive-touch-sensor-breakout-tutorial/overview
http://www.adafruit.com/datasheets/MPR121.pdf
https://github.com/adafruit/Adafruit_MPR121_Library
http://arduino.cc/en/Reference/Tone
Nice info, thanks for sharing it ๐
What can we do when need to read lots of capacitive switches? (For example, Creating a PC keyboard needs at least 102 switches)
you could make a phone dialer
I had that thing lying around for years now, never wanted to play with it because I didn't like the need for a level-shifter – but recently found out that you don't need one. I2C is an open-collector bus with pull-up resistors (here to 3.3V on the board), which are fine to connect directly to the Arduino.
BTW the MPR library uses some initialization values for the MPR121 that I find somewhat implausible (and not recommended in the manuals), so with some tweaking there it's a bit more responsive (reliable at detecting touches).
I love how all of his one day projects actually take like 3 years because he does so many projects at the same time that they all take super long
you can regule the frequency now need work with a 1/4 hp motor need make sawstop but with capacitor and ardiono with arduinocapacitor.h this not work the frequency always change do you have any test about?
Hello
I wish you can reply to me,
My question is:
Can I get an analog values from this sensor? My project is an artificial hand and i want a feedback sensor so that once the holds something, the motor stops, please help
Is the library sensitive to pressure?
How can we do that with an easy8051a motherboard, any video on that?
does it possible to be use for water level sensor?
thank u for sharing your valuable knowledge!
can i use touch pad to this??
how can i interface this touch pad with arm7 ??
your help is appreciated!
Vaya, pensรฉ que eran monedas de 5 duros ๐
is it moultitouchable?