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mTouch is a sensing solution based on the principle of capacitance change provided by Microchip Technology.
The capacitance changes when the user brings their finger closer to the sensing pad. A PIC microcomputer detects this change and realizes a capacitive touch sensor.
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When realizing a capacitive sensor, we will implement mTouch using ADC and software. This feature is open source and there is no license fee for using Microchip Technology's mTouch.
for that reason,
- I want to realize a switch that emphasizes design
- I want to realize a dustproof switch
- I want to improve waterproofness
- Achieving intuitive operability
- I want to improve maintainability
- I want to realize it at the lowest possible cost
It is ideal for applications such as
Here we will discuss the low-cost PIC microcontroller PIC16F1503 and DM164137 development board.
DM164137 development board for easy mTouch development
DM164137 development board is a development board that can develop low cost 8bit microcomputer PIC16F1503. The mTouch button is wired on the DM164137 development board, making it easy to implement a touch sensor.
In addition,
- LED
- potentiometer
- RN4020 Bluetooth Module Footprint
- mikroBus Heade
It is equipped with interfaces such as PIC16F1503 so that you can immediately evaluate it.
How to quickly realize a touch sensor in 3 steps
With the PIC16F1503 microcontroller and DM164137 development board, the touch sensor can be realized in the following three steps.
Step 1. Prepare and connect your equipment
The PIC16F1503 MCU and DM164137 development board are designed for easy implementation.
Step 2. Prepare your development software
All development environments for the PIC16F1503 microcontroller can be used free of charge.
Install MPLAB X IDE, an integrated development environment that can be downloaded and used from the Microchip Technology website.
Step 3. Evaluate the touch sensor with reference to the sample program
A touch sensor can be implemented by implementing the mTouch program according to the procedure in the link below.
Curiosity Development Board Example
You can evaluate the touch sensor by running the program.
Application example
- illumination
- coffee maker
- Automatic door
- Home appliances
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Product Summary
| Type name | PIC16F1503 |
| Features |
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| Type name | DM164137 |
| Features |
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Where can I get the integrated development environment and compiler for PIC microcontrollers?
What functions and external parts are required to realize a capacitive touch sensor with a PIC microcomputer?
Please tell me the wiring distance between the capacitive touch sensor and the PIC microcomputer.
What kind of functions are necessary to realize a capacitive sensor with a waterproof function with a PIC microcomputer?
Please tell me how to improve the detection speed of the capacitive sensor.
Is there a mechanism for stable operation when a capacitive sensor with large parasitic capacitance is connected?
What is a sensor? Basic knowledge for digitization and IoT
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Manufacturer site/Other related links
DM164137 Product Information
PIC16F1503 Product Information
MPLAB® X Product Information
Acquisition Method for mTouch Sensing Solutions: Capacitive Voltage Divider