Touch Potentiometer - module with a touch potentiometer

Description

Linear capacitive touch sensor that realizes potentiometer functionality with 256 positions. It can act as a peripheral device for a computer or a microcontroller. It provides both a two-channel analog output and a PWM output. The module is controlled by Microchip PIC16F1829 microcontroller which provides host interface, LED control, capacitive sensing and peripheral control functions. The built-in voltage stabilizer enables operation in the range of input voltages up to 12 V, and connectors compatible with contact plates facilitate prototyping. It will work in a wide range of projects as an element for volume control or dimming LEDs. Full documentation with examples of use is available on the product page.

Features

• Two host interfaces: serial and I2CTM
• Dual 8-bit 20 kΩ 3-pin digitally controlled potentiometer outputs
• PWM output
• 8 LEDs with multiple display modes and intensity levels
• Option of interpolated (smooth) changes between touches
• Configurable touch sensor parameters for different PCB covers
• Easily configurable I2C address to allow the use of multiple devices on one bus
• Configurable linear or non-linear PWM transfer function
• Configurable linear or simulated logarithmic function
• Simple registry interface with jabber option
• Programmable default operation at power-up
• Built-in calibration procedure
• EEPROM memory available to the user
• Built-in 5V LDO voltage regulator
• THT and SMT connectors