6-Channel Capacitive Touch Sensor Module

  • Rajkumar Sharma
  • 455
    Views
  • moderate
  • Tested

The module described here is a 6-channel capacitive touch sensor. The project is based on CAP1206 IC which contains six (6) individual capacitive touch sensor inputs with programmable sensitivity for use in touch sensor applications. Each sensor input is calibrated to compensate for system parasitic capacitance and automatically recalibrated to compensate for gradual environmental changes. The CAP1206 features Multiple Pattern Touch recognition that allows the user to select a specific set of buttons to be touched simultaneously. If this pattern is detected, a status bit is set and an interrupt is generated. The CAP1206 has Active and Standby states, each with its own sensor input configuration controls. Power consumption in the Standby state is dependent on the number of sensor inputs enabled as well as averaging, sampling time, and cycle time. Deep Sleep is the lowest power state available, drawing 5μA (typical) of current. In this state, no sensor inputs are active, and communications will wake the device.

Refer to the datasheet of CAP1206 for more information on configuration and controlling the module using a microcontroller, Arduino, or Raspberry Pi.

Features

  • Operating Supply 3.3V to 5V DC
  • Onboard SMBUS/I2C Interface
  • Onboard Power LED
  • 6 PCB Touch Pads
  • I2C ADDRESS 0x28
  • PCB dimensions: 83.82 x 24.13 mm

Schematic

Parts List

NO.QNTY.REF.DESCMANUFACTURERSUPPLIERSUPPLIER PART NO
11CN15 PIN MALE HEADER 2.54MM PITCHADAM TECHDIGIKEY 2057-PH1RA-05-UA-ND
21C10.1uF/50V SMD SIZE 0805MURATA/YAGEO
31C210uF/16V SMD SIZE 1210 OR 1206MURATA/YAGEO
41D1LED RED SMD SIZE 0805OSRAMDIGIKEY 475-1415-1-ND
53R1,R2,R310K 5% SMD SIZE 0805MURATA/YAGEO
61R41K 5% SMD SIZE 0805MURATA/YAGEO
76TP1-TP6PCB TOUCH
81U1CAP1206 14SOICMICROCHIPDIGIKEY CAP1206-1-SL-CT-ND

Connections



Gerber View

Photos

CAP1206 Datasheet

00001567B

PCB

Subscribe
Notify of
guest
0 Comments
Inline Feedbacks
View all comments

RELATED PROJECTS

X

By continuing to use the site, you agree to the use of cookies. more info

The cookie settings on this website are set to "allow cookies" to give you the best browsing experience possible. If you continue to use this website without changing your cookie settings or you click "Accept" below then you are consenting to this.

Close