• QuietZone™ Controller – CY8C20247S-24LKXI
• Small surface mount module form factor - 0.75” x 0.75” (19mm x 19mm)
• Comes with a 5 pin header for easy connection to the MiniProg3
• 14 pin edge connector gives easy connection to CapSense IOs
• 2 System LEDs on board for visual feedback
• Download Software Projects to evaluate the performance of the QuietZone™ Controller

The AEK-CY8C20xx7 QuietZone™ Starter Kit is designed for easy evaluation of the CY8C20247S-24LKXI and to develop proof of concepts by connecting directly to target design boards. The kit comes with a 5 pin header for connecting to the MiniProg3 and the CapSense IOs available on the 14 pin header can be directly connected to sensors for generating UI functions like buttons, sliders and proximity sensors. Speed up your design cycles by taking advantage of the software projects to implement and test buttons, sliders, proximity and communication interfaces like I2C and SPI.

The CY8C20xx7/S is the most advanced capacitive touch sensing controller enabling proximity and water tolerance @ 1.8V. This family lowers the total BOM cost by replacing multiple components used for capacitive touch sensing and user interface control with a single chip.

The CY8C20xx7/S operates from 1.71 V to 5.5 V and combined with power saving modes enables a low average power consumption of 28µA per sensor at a scan rate of 125 ms. The wide operating range makes it ideal for both regulated and unregulated off-line and battery powered applications.

The CY8C20xx7/S, featuring the QuietZone™ technology enhances immunity against radiated and conducted noise. A key component of this technology, the Capacitive Sigma Delta PLUS™ (CSD PLUS) sensing algorithm delivers the best-in-class Signal-to-Noise ratio even in extreme noise environments.

The SmartSense Auto-Tuning technology monitors the performance of each sensor and dynamically compensates for environmental variations during runtime. This technology adapts to manufacturing variations in PCB, overlays, and tunes out noise generators such as LCD inverters, AC lines and switched-mode power supplies.

The CY8C20xx7/S offers the best proximity detection to up to 30 cm. This family has driven shield capability for maximum loads of 100 pF to enhance the water tolerance capabilities in applications that face the challenges of mist, water droplets or streaming water. The CY8C20xx7/S is ideal for all application segments ranging from Bluetooth headsets, Mobile phones, tablets that require lower operating voltages to White Goods, Small home appliances, TV, monitors, printers that requires high SNR for a robust touch performance.

• Based on Cypess’s PSoC^® 3 platform
• Simple and portable
• Powered from AC mains or battery
• Customized menu (upto 1000 items)
• Smooth CapSense^® buttons (uses Cypress’s SmartSense^™ technology) for data entry
• 2 inch Thermal Printer interface for print-outs of bills
• 16x2 alphanumeric LCD Display
• Serial Flash memory for data storage
• Real Time Clock (RTC)
• Buzzer
• Communication interface with PC (USB / UART)
• Maintains inventory information
• Customized report generation
• Solution can be customized based on end user requirements

Block Diagram
 

The solution has a pre-loaded customized menu that a user can select using CapSense buttons based on Cypress’s SmartSense^™ Technology. The solution uses 18 CapSense buttons.The user has the option to select an item from the menu and need to enter the weight for each item. The bill for all the items entered is generated and printed on a 2 inch Thermal Printer. The stepper motor in thermal printer interface is controlled to provide “noise free” and smooth print outs. The solution uses a 16x2 alpha numeric LCD display.

The solution has Buzzer, Real Time Clock (RTC) and Serial Flash. The unit can communicate with PC
through UART / USB interface. The customized report can be generated and maintains the inventory info.

PSoC 3 provides a flexible platform for various models of the solution.
 

Billing Machine (with enclosure)



 

Billing Machine (without enclosure)

• Smooth and noise free control of Stepper motor in Thermal Printer
• Reliable CapSense performance for user interface
• Programmable platform for various models