The STEVAL-ICB002V1 daughterboard is based on the STMPE821 8-channel capacitive touch key controller. This board connects to the STEVALPCC009V3 interface board, which acts as the motherboard, to form the STM32-based capacitive touch demonstration application designed to evaluate the functioning of the STMPE821 device.

The STMPE821 is a GPIO (general purpose input/output) port expander with a built-in capacitive touchkey controller. The device is capable of interfacing with a main digital ASIC/controller using the 2-line communication protocol I²C.

The STM32 microcontroller is used as the main digital controller to interface the STMPE821 device, and utilizes the capacitive touchkey controller, GPIO controller and PWM controller features of the STMPE821 in the application.

The STMPE821 device controls 3 different touchkeys using the integrated capacitive touchkey controller. Touch events are indicated on LEDs using the GPIO controller, and the corresponding PWM frequency is generated on a separate LED using the PWM controller.

The STM32-based STEVAL-PCC009V3 interface board acts as motherboard for the application and connects to the STEVAL-ICB002V1 via a 10-pin connector.

Power to the interface board (motherboard) is provided from a USB Mini-B type connector. The daughterboard is powered from the motherboard via the 10-pin connector.

The STEVAL-ICB003V1 demonstration board is a general-purpose front panel solution suitable for white goods, utilizing a TLED316S LED driver, STMPE1208S capacitive touch sensor and an a STM8S207K6 microcontroller from the STM8 series of 8 bit microcontrollers.

The purpose of the board is to demonstrate the capabilities of ST’s STLED316S, STMPE1208S and STM8S devices in a sophisticated front panel application targeted at the front panel market segment for DVD players, DVD recorders, set-top boxes, washing machines, etc., while keeping system cost as low as possible.

The design focuses on 3 key areas: standby management for low power consumption, general touchkey and rotary encoder input and water level sensing of a 38-43 kHz output from a water level sensor.

To increase versatility, the design includes features such as rotary encoder interface, power management and a logic level input for a water level sensor.

The STEVAL-ICB004V1 board demonstrates the high-speed resistive touch-sensing functionality of the STMPE811 advanced resistive touchscreen controller. The board offers the added functionality of a USB universal dongle for I2C and SPI interfaces, and DFU (device firmware upgrade) protocol for run-time firmware upgrades. The STEVAL-ICB004V1 includes the STMPE811 demonstration GUI software (for Windows^®XP) to capture writing/drawing events on the touchscreen. The board also includes an additional UUSCI (universal USB-to-serial communication interface) GUI for evaluation of different I²C and SPI sensors, and a DFU GUI for run-time firmware upgrades. The many functions integrated in this single board render the STEVAL-ICB004V1 a multi-purpose demonstration platform for evaluating the STMPE811 advanced touchscreen controller.

The STEVAL-ICB007V1 demonstration board employs STM32-based capacitive touch to demonstrate the functionality and performance of the STMPE321, a 3-channel capacitive touch key controller.

Capacitance measurement is implemented in fully optimized hardware, and the 3 I/Os can be configured as either capacitive touchkeys or as GPIOs (general purpose input/output). The device is capable of interfacing with a main digital ASIC/controller through the 2-line communication protocol I2C.

In the STEVAL-ICB007V1 demonstration board, the STM32 microcontroller is used as the main digital controller to interface with the STMPE321 device. The system utilizes the capacitive touchkey controller of the STMPE321 and PWM features of the STM32 to demonstrate the application.

The STMPE321 controls 3 different touchkeys using an integrated capacitive touch controller. Touch events are indicated on the LEDs using the STM32 GPIO pins, and the corresponding PWM frequency is generated on a separate LED using the STM32 timer.

The STEVAL-MKI031V1 MuSA (multi sensor application board) platform is intended to demonstrate the performance and possible uses of MEMS devices.

The MuSA platform is based on an ST7 8-bit microcontroller, which manages the output signals from the MEMS accelerometer.

The platform comes with the LIS331DLH pre-installed on the board, but can support any digital-output accelerometer from ST in 3x3 or 3x5 mm packages connected to the microcontroller through an SPI interface, as well as the LIS344ALH analog-output accelerometer.

The MuSA platform features four buttons for navigating the menus. A mini-USB connector is available to exchange data with a PC, depending on the specific application, and also recharges the internal Li-ion battery. The battery is capable of providing power for approximately 7 hours of operation.

A USB interface is available for firmware upgrades (DFU), and for exchanging data with user-developed software running on a host PC.

The STEVAL-MKI062V2 is the second generation of the iNEMO™ module family. It combines accelerometers, gyroscopes and magnetometers with pressure and temperature sensors to provide 3-axis sensing of linear, angular and magnetic motion, complemented with temperature and barometer/altitude readings, representing the new ST 10-DOF (degrees of freedom) platform.

Based on the previous version, the STEVALMKI062V2 represents another step forward in miniaturization, integrating five ST sensors: a 2- axis roll-and-pitch gyroscope, a 1-axis yaw gyroscope, a 6-axis geomagnetic module, a pressure sensor and a temperature sensor.

This 10-DOF inertial system represents a complete hardware platform which can be used in numerous applications such as virtual reality, augmented reality, image stabilization, human machine interfaces and robotics.

A complete set of communication interfaces with various power supply options in a small-size form factor (4 x 4 cm) make iNEMO V2 a flexible and open demonstration platform.

To aid in user development and analysis, the STEVAL-MKI062V2 demonstration kit includes a PC GUI for sensor output display and a firmware library to facilitate the use of the demonstration board features.