TTP229 I2C Module 16 Key Capacitive Touch Keypad

The TTP229 I2C Module 16 Key Capacitive Touch Keypad is the semiconductor-based touch pad is the durable alternative to classic keyboards with switches.

Thanks to the capacitive measurement, the pad is also suitable for dusty or rough environments. The internal calibration detects changes in the environment and automatically adjusts the sensitivity.

This capacitive touch sensor module uses the TTP229 integrated circuit, making it easy to add capacitive touch input to your project.

It features 16 sensitive touch pads that make an ideal replacement for the old fashioned keypads.

TTP229 I2C Module Capacitive touch allows electronics to sense when your finger is within a few millimeters of a surface to simulate a button “press” just like how the pushbutton works.

Capacitive sensing may be used in any place where low to no force human touch sensing is desirable.

this TTP229 I2C Module a 16 switch based easy to use capacitive touch sensing module, This 16 switch digital touch sensor module is based on a touch sensing IV TTP229.

This device has a built-in regulator for the touch sensor. We can add interfaces through the non-conductive dielectric material.

TTP229 Capacitive Touch Module is can replace conventional 4×4 keypad with a touch based keypad. The module has two working modes.

A 8 key mode that provides a independent 8 channel output or a 16 key mode that can be used with the I2C interface of the module, there by saving even more pins and connections on the application Arduino or Microcontroller board. Sensitivity can be adjusted by the capacitance (1~50pF) outside.

Features: –

• 16-channel maximum touch key sensing
• Operating voltage – 2.4V – 5.5V for built-in regulator mode
• Operating voltage – 2.0V – 5.5V for built-in regulator disabled
• Inbuilt regulator for touch sensors
• Operating current 2.5uA typically in 16-key mode. Operating current 2.0uA for 8-key mode.
• I2C enabled for communication with host.
• Adjustable sensitivity using an external capacitor (1-50 pF)
• Stable touch detection of the human body
• All output modes can be configurable for high or active low by pad options.
• Direct mode and Toggle mode selection pin available
• Provides one output pin TPQ0D that has no diode protection circuit inbuilt and it is active low
• Provides fast mode and low power mode selection by pad optional (LPMB pin).
• Auro calibration feature for life. The re-calibration period is about 4.0sec when the key has not been touch.
• Provides direct mode or toggle mode, CMOS output, or open-drain output. active high or active low by option (TOG/AHLF/OD pin).

TTP229 I2C Module Specifications: –

• Operating voltage：2.4V~5.5V
• Stand-by current At 3V, 2.5uA
• On-Board Power Indicator LED
• Operates In 8 Or 16 Channel Mode
• Output Can Configured Be Active High Or Low
• Output Mode Can Be Configured To Toggle Or Momentary
• 0.5 Second Startup Calibration Delay
• Configurable Output Mode
• 8 Key or 16 key modes
• Separate outputs to 8 keys in 8 key mode
• PCB Size At 49.3 x 64.5mm

TTP229 I2C Module Applications: –

• Appliances control
• Wide range of consumer products
• Replacement of button switches
• Matrix keypads

Datasheet: –

elecrow.com/download/TOUCH_IC_TTP229.pdf

Package: –

1 x TTP229 I2C Module

Related Products at majju.pk

• LCD Keypad Shield LCD1602 for Arduino
• Momentary Push Button Keypad Module 4X4 Matrix Keypad
• Switch Control Panel 1X4 Key matrix Membrane Keypad
• 3X4 Keypad 3X4 Matrix keypad 12 key Membrane Switch Keypad
• Arduino 3X4 KEYPAD 4×3 Matrix 12 key Membrane Switch Keypad
• 1X4 KEY MATRIX MEMBRANE SWITCH CONTROL PANEL
• TTP229 16 KEY CAPACITIVE TOUCH KEYPAD MODULE