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E-Blocks Capacitive Touch Sensors Board US$47.60

E-Blocks Capacitive Touch Sensors Board

This is a downstream E-blocks peripheral module, designed to be controlled by one of the upstream E-blocks processing boards which are available in a variety of MCU/CPLD architectures.

The capacitive touch board allows easy investigation and implementation of "cap-touch" technology which is replacing mechanical push-to-make switches in modern electronics devices. Each of the cap-touch pads is created using only the copper on the printed circuit board no external parts and mechanics are required. In modern electronic devices, this makes switch operation more reliable in the long term and decreases product costs. The board features a joystick-style interface consisting of five separate cap-touch pads providing up, down, left, right and center functions. Each pad is completely separate, allowing for multi-touch applications such as games where you want to be able to move and shoot at the same time.

Most of the work in the Cap Touch sensing mechanism goes into the software to control the microcontroller's ADC channels. Each pad must be connected through to its own unique ADC channel, and there also needs to be an extra free ADC channel to allow the internal ADC capacitor to be charged up.

E-Blocks Capacitive Touch Module Features

  • 5 cap touch pads
  • Cursor-style layout with central Enter/OK button
  • Minimal external components
  • Multi-touch compatible

E-Blocks Overview

E-blocks are small circuit boards each of which contains a block of electronics that you would typically find in an electronic system. Each E-block performs a separate function as either an input sub-system, an output sub-system, an input/output sub-system or a processing sub-system.

E-blocks can be put together to form a variety of systems that can be used for teaching and learning electronics, and for the rapid prototyping of complex electronic systems.

Each E-block has one or more 9-way D-type connectors that provide up to eight input/output lines and a ground line. These D-type connectors allow connection between E-blocks to be made in buses of multiples of 8 lines, just like a real electronic system. Power is routed separately to those E-blocks that need it.

Processing E-blocks based on PIC, dsPIC, ARM or AVR microcontrollers control the whole E-blocks system. Processing E-blocks provide up to five input/output ports with up to eight lines per port.

Please see the E-blocks Category for a list of available components. For more details on E-blocks, see the E-blocks User Guide (in English, French, German and Spanish) or watch the Introduction to E-blocks video.

Download EB088 Datasheet and Schematics

This product was added to our catalog on Monday 18 March, 2013.


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