DESCRIPTION
The 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 microcontroller or in a stand-alone capacity. The Touch Potentiometer provides both a dual-channel analogue and PWM output for direct control of other circuitry. Configurable analogue 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 behaviour, calibrate the capacitive touch sensor, view current readings in jabber mode, and much more.
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
RESOURCES
- Schematic
- Eagle Files
- User Manual
- Hookup Guide
- Datasheet (AD5262BRU)
- Touch Pot Utility Application
- GitHub (Design Files)
- Product Page
- Product Video
Fast Shipping & Professional Packing
We are able offer many shipping options due to our long-term relationship with UPS FedEx DHL. Our warehouse staff are highly trained to package your goods exactly as per the specifications we provide. Before shipping, all goods are carefully examined and safely secured. We ship to thousands clients every day from all over the world. This shows that we're committed to being the largest retailer on the internet. These warehouses are located in Europe just as they are in USA.
Note: Orders with more than one item are assigned a particular processing period based on the individual item.
Before shipping, we will examine the items ordered carefully before shipping. Most orders are shipped within 48 hours. Expected delivery time is between 3 and 7 days.
Returns
Due to multiple entities which include the factory as well as the warehouse, we're unable to completely manage our stock. This means that the actual stock could alter at any time. It's possible that your order will be unable to fill after you place the order.
Our policy is valid for a period of 30 days. We cannot exchange or refund your order after 30 days since the purchase.
The item cannot be used and in its original condition. The item should be in the original packaging.
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