MPR121 Breakout 更改 I2C 地址 MPR121 Breakout 是一个 接近 电容式 触摸传感器,连接到arduino、esp32等单片机,可以用来做一些 触摸 感应的小玩意。 他有12个触摸点,使用 i2c 协议来操控,非常方便。 默认情况下,Add 引脚 接地了,板子的i2c地址是 0x5A,如果你要同时连接多个 板子,那么 i2c 地址就冲突了。你只...
MPR121 WhellPad Example Codeby:Waiman ZhaoMail:Binpower@foxmail.comcreated on: 11/2/14license: CC-SA 3.0Hardware: 3.3V Arduino Pro MiniSDA -> A4SCL -> A5IRQ -> D2*/#include <Wire.h>#include <mpr121.h>#include "Keyboard.h"int key = 0;// === setup ===void setup(){// init...
Or, you can just click the icon in upper right corner of the code block to copy the following code into a new sketch in the Arduino IDE. #include "Seeed_MPR121_driver.h"Mpr121 mpr121;u16 touch_status_flag[CHANNEL_NUM]={0};void setup(){ s32 ret=0; Serial.begin(115200); if(mpr...
MPR121 I2C Touch, Arduino or Digispark / ESP8266 Software Arduino IDESanki Notes I2C : SDA : A4 (Digispark D0) SCL : A5 (Digispark D2) IRQ : D2 V++ : 3.3VExamples This example is ... /*** This is a library for the MPR121 12-channel Capacitivetouch sensor Designed specifically...
I am using the Adafruit MPR121 12-Key Capacitive Touch Sensor Breakout Board. It is working well with an Arduino Uno R3. I am attempting to use this Breakout Board with a TI microcontroller, MSP430G2553. I have established I2C communications with the Breakout Board. However, I have not ...
Since many customers have 5V microcontrollers like Arduino, we tossed a 3.3V regulator on the board. Its ultra-low dropout so you can power it from 3.3V-5V just fine. - this is the power pin. Since the chip uses 3 VDC, we have included a voltage regulator on board that will take 3...
when mpr121 is connected to arduino with usb power everything is ok. then i used power supply unit and got random touch events ("glitchs"). then i tried another PSU and glitches were still there but little less. Difference between first and second PSU is that second has ground (green/ye...
In this first section of the code, the MPR121 library and the Wire library are initialized. The Wire library makes I2C communication easy to use on the Arduino. The sketch also defines digital pin 2 as the IRQ pin connection, and creates 12 instances of the boolean variable touchStates. ...
Arduino library for the MPR121-based capacitive sensors in the Adafruit shop Topics arduino-library Resources Readme Activity Custom properties Stars 91 stars Watchers 21 watching Forks 72 forks Report repository Releases 9 1.1.3 Bump version in library.properties Latest Nov 15, 2023 ...
requires Wire.h library, which is part of the Arduino core (so you don't need to download anything) but you do need to include it in your .ino file it is the user's responsibility to include <wire.h> and call its begin() method ...