Scheme-it

This design is a simple motor control that uses the Freescale's MC10XS4200BFK dual high side switch. It has two fully protected 10mΩ high side switches with up to 6A steady state current per channel. Both channels can be controlled individually by external or internal clock signals, or by direct inputs. In addition, it has an accurate temperature and current sensing and has individually programmable internal/external PWM clock signals that allow fully autonomous device operation.

The factors that cause floods have been constantly increasing and as a result, flooding has become frequent and hazardous especially in low level areas. This design features a flood level monitor that measures rainfall intensity and flood level, and automatically alerts the community and relevant authorities of the measured data using a GSM module and other warning devices.

Wireless tilt mouse allows the control of mouse cursor on the PC screen through tilting of the board. It specifically uses the Freescale's FXLN8371QR1 accelerometer, which is a family of 3-axis, low-power, low-g, analog output accelerometers that consist of an acceleration sensor along with a CMOS signal conditioning and control ASIC in a 3x3x1 mm QFN package. The analog outputs for the X, Y, and Z axes are internally compensated for zero-g offset and sensitivity, and then buffered to the output pads. The outputs have a fixed zero-g offset of 0.75V, irrespective of the VDD supply voltage. The bandwidth of the output signal for each axis may be independently adjusted using external capacitors. This handheld mouse device measures its tilt and then wirelessly transmits the data to a base unit. It is connected to a PC through a USB cable and can be recognized by certain modern computers as an actual mouse.

Ideally, an amplifier is said to be linear if the input power is proportionally related to the output power by the gain of the amplifier. In an RF amplifier design, linearity is a very important parameter to be considered since it determines the fidelity of the signal. High amplifier linearity is possible, but at the expense of efficiency. One of the classic trade offs in power amplifier transistors is between output power and bandwidth. Active devices are inherently limited in bandwidth by internal capacitance. Eventually, every transistor reaches a frequency at which signal gain drops below unit and where the device is no longer useful as an amplifier. Smaller transistor geometries can achieve higher operating frequencies, but the smaller dimensions result in reduced power capacity.

There are several manufacturing plants invested to systems upgrade particularly in the production side. Instead of deploying a lot of operators in the production, the company invested to several types of automation that increases monitoring efficiency. This improvement in the industry attracted more investors that compensate to the employment losses. This design features a highly integrated system that optimized the sensing applications. It has three accelerometers that operate in different ranges with integrated temperature sensor. It can monitor pressure and object distance through the interfaced sensors. There are eight selectable output data rates from 488Hz to 3.8Hz and four types of trimmed ADC data formats such as 10, 12, 14, and 16-bit. The system has also ROM-based flash controller and slave port, command-line interpreter for some embedded purposes.

This circuit diagram shows an MCU-based blinking LED project using the LED demo board with Low Profile SMT Releasable Poke-In Connectors. LED lighting, nowadays, has lit up the electronics industry in terms of growth. It has replaced the incandescent bulbs as well as the compact fluorescent lamp (CFL). This is because LEDs have a lower rated power and longer lifespan as compared to the incandescent bulb and CFL.

A hearing aid is a small electronic device worn in or behind the ear that amplifies incoming sounds to help people with hearing impairment. This design features a light and compact hearing aid with a soft touch sensor that allows the user to control the volume and frequency depending on the user's preference.

The Power Over Ethernet (PoE) is a technology used for transmitting power to equipments in a network, using ethernet cables. This PoE is very advantageous, especially when connecting to equipments that are far from power sources. It also offers benefits such as time and cost saving, flexibility, safety, reliability and scalability. Today, the new network equipments are already having built-in PoE features. For non-PoE capable devices, they use the PoE Adapter.

The capabilities of this project on measuring acceleration and orientation in space are described using Freescale's 3-axis FXLN8361QR1 xtrinsic accelerometer interfaced with a microcontroller. Accelerometers are recently developed solid-state electronics devices that makes it very easy to measure acceleration. They are completely modular and very tiny devices, which gives voltage proportional to acceleration. These types are called analog accelerometers, as their output is voltage. While other gives a PWM output or direct binary digital data, they are called digital accelerometers.

The FRDM-SFUSION sensor fusion development kit brings together the FRDM-SFUSION sensor fusion software library with Freedom development boards for application development and rapid prototyping. This kit makes it easy to bring your next sensor-based design to life and offers premium grade support when you need it.

The sensor fusion development kit (FRDM-SFUSION) includes:

- FRDM-K64F Freedom development board for Kinetis K64, K63, and K24 MCUs

- FRDM-FXS-MULTI-B Freedom development board for sensors (Bluetooth)

- Sensor fusion software library (download)