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Microchip PIC/AVR/SAM: What is the difference between mTouch/QTouch, the capacitive sensor function built into the microcontroller?
The technology name of the capacitive sensor differs depending on the type of microcomputer.
Along with that, there are also differences in the development environment and detection methods.
They are summarized in the table below.
| PIC16/18(8-bit) | AVR (8-bit) | SAM (32-bit) | |
| name | mTouch | QTouch | QTouch |
| touch controller | HCVD/ADCC | PTC | PTC |
| Detection method | Self-capacitance method | Self-capacitance/mutual capacitance method | Self-capacitance/mutual capacitance method |
| Driven shield | 〇 | 〇 | 〇 |
| Design tools | MPLAB Code Configurator Classic/Melody |
MPLAB Code Configurator Melody* |
MPLAB Harmony v3 |
| Integrated development environment IDE | MPLAB X IDE | MPLAB X IDE | MPLAB X IDE |
| Tuning tools | Data Visualizer | Data Visualizer | Data Visualizer |
* Scheduled to be supported sequentially
Links to each tool are below.
MPLAB X IDE: https://www.microchip.com/en-us/tools-resources/develop/mplab-x-ide
MPLAB Code Configurator (MCC): https://www.microchip.com/en-us/tools-resources/configure/mplab-code-configurator
MPLAB Harmony v3: https://www.microchip.com/en-us/tools-resources/configure/mplab-harmony
MPLABXC C Compilers: https://www.microchip.com/en-us/tools-resources/develop/mplab-xc-compilers
MPLAB Data Visualizer: https://www.microchip.com/en-us/tools-resources/debug/mplab-data-visualizer
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