Productos

SparkFun Touch Potentiometer

Potenciómetro táctil lineal, de 256 posiciones.

COD: SFPRT13144

Peso: 0.023 Kg

Disponibilidad: En Stock

ARS 38315.00

El producto no está disponible para la venta en este momento

Características

The SparkFun Touch Potentiometer, or Touch Pot for short, is an intelligent linear capacitive touch sensor that implements potentiometer functionality with 256 positions. It can operate as a peripheral to a computer or embedded micro-controller or in a stand-alone capacity. The Touch Potentiometer provides both a dual-channel analog and PWM output for direct control of other circuitry. Configurable analog and PWM transfer functions support a wide variety of applications such as volume control and LED dimming.

The Touch Potentiometer is controlled by a Microchip PIC16F1829 8-bit micro-controller that provides the host interface, LED control, capacitive sense and peripheral control functions. A built-in low-dropout voltage regulator allows operation over a range of input voltages up to 12V and breadboard friendly connectors make it easy to play with. A desktop application has been created by our collaborator, Dan Julio, that communicates with the Touch Pot over a serial connection. From this utility app you can change configuration settings, alter LED behavior, calibrate the capacitive touch sensor, view current readings in jabber mode, and much more.

Note: This product is a collaboration with danjuliodesigns. A portion of each sales goes back to them for product support and continued development.

Video

Features:

Dual host interfaces: Logic-level serial and I2CTM
Dual 8-bit 20 k-ohm 3-terminal digitally controlled variable resistor outputs
PWM output
8 LED display with multiple display modes and intensity levels
Option for interpolated (soft) changes between touches
Configurable touch sensor parameters for a variety of PCB covers
Easily configurable I2C address to allow multiple devices on one bus
Configurable linear or non-linear PWM transfer function
Configurable linear or simulated logarithmic variable resistor transfer function
Variable resistor supports single- or dual-supply operation
Simple register interface with jabber option
Programmable power-on default operation
Built-in calibration procedure
User-accessible EEPROM data storage
Built-in 5V LDO voltage regulator
Through-hole and SMT connectors