TM Freescale, the Freescale logo, AltiVec, C-5, CodeTest, CodeWarrior, ColdFire, C-Ware, mobileGT, PowerQUICC, StarCore, and Symphony are trademarks of Freescale Semiconductor, Inc., Reg. U.S. Pat. & Tm. Off. BeeKit, BeeStack, CoreNet, the Energy Efficient Solutions Logo, Flexis, MXC, Platform in a Package, Processor Expert, QorIQ, QUICC Engine, SmartMOS, TurboLink and VortiQa are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc Rapid Prototyping Solutions Using Freescale Sensors with MQX
TM Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc Module Objectives ► In this session the participants will learn about the wide range of Freescale Sensors, how they can be used, how they work, and what the future holds for sensor integration ► This session features the latest Freescale Tower System Sensor Module, which showcases a low cost digital accelerometer, a digital barometer and the latest 2nd generation touch sensor ► Hands-on labs will enable participants to interact with these and other sensors using the expandable capabilities of the Freescale Tower System and MQX to incorporate sensor data with a web server ► Session participants will gain a better understanding of the Freescale Sensor portfolio, the ongoing evolution of sensors Freescale is pursuing and will be introduced to basic MQX projects that will enable them to further explore sensor solutions with the Freescale Sensor Tower System module
TM Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc Module Agenda ► What are sensors ► How sensors sense ► Evolution of sensors ► Hands-on demonstration ► Hands-on sensor labs ► Additional resources ► Review and Q&A
TM Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc Module Agenda ► What are sensors ► How sensors sense ► Evolution of sensors ► Hands-on demonstration ► Hands-on sensor labs ► Additional resources ► Review and Q&A
TM Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc What Are Sensors ► A sensor is a device that detects either an absolute value or a change in a physical or electrical quantity, and converts that change into a useful input signal for a decision making center Data Processing, Control, and Connectivity Sensor Input Actuator or Output
TM Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc Sensor Applications Touch Touch detection Appliance control panels Touch panels Pressure Medical Barometer/altimeter Engine control/tire pressure HVAC applications Water level Acceleration Gesture detection Tilt to control Tap detection Position detection Orientation Multiple sensors working together for next generation applications … Gyroscopic Magnetic Ambient light sensing Temperature/humidity Motion detection
TM Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc Shake Detection using the MMA7660FC Shake Detection can be used for: Clearing the screen Scrolling through images Hanging up a call Ignoring a call Muting a phone 32 samples per second (133µA) 5 Distinguishable Shakes Graph: Displays 5 shakes acted on MMA7660FC. All Shakes below 1.5 g threshold and above 1.3g.
TM Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc Simple Weather Barometry Using MPL115A Changes of 3 kPa to 7 kPa drops in pressure signal bad weather (storms/cyclone) Water vapor in the air drops pressure as humidity makes air LIGHTER. How: Dry air (~79% Nitrogen, ~20% Oxygen) is heavier than water vapor (H20) Dry air mixed with water vapor is lighter than pure dry air High water vapor/high humidity = drops in barometric pressure Also: High pressure areas next to low pressure areas will lead to lots of wind Sudden pressure drops also signal a tornado for example Clear skies/weather is seen by higher pressure or an increase of ~3 kPa Issues: Weather prediction also is dependent on humidity and wind direction App Note AN3914 AnalysisOutput dP > +0.25kPaSun Symbol -0.25kPa >dP >0.25kPaSun/Cloud Symbol dP <-0.25kPaRain Symbol Pcomp (MPL115A Pressure) (kPa) PWeather (Ideal weather) (kPa) SimpleweatherdiffWeather type Sun/Cloud Rain Sun Sun/Cloud Example:
TM Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc ► Transparent keypad MPR121 Capacitive Touch Sensor – Button/Switch Replacement Advantages: Button replacement Switch replacement Innovative design Robust Low cost
TM Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc Module Agenda ► What are sensors ► How sensors sense ► Evolution of sensors ► Hands-on demonstration ► Hands-on sensor labs ► Additional resources ► Review and Q&A
TM Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc How Sensors Sense ► Accelerometers ► Pressure sensors ► Touch sensors A brief overview of how the following sensors sense:
TM Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc G-Cell A surface micro-machined capacitive sensing cell How Accelerometers Work
TM Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc X Axis Y Axis Z Axis How Accelerometers Work – X-, Y-, & Z-Axis Movement
TM Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc Differential P1 P2 Gauge Absolute Vacuum P1 P2 = ATM Constraint Wafer For All: P1>P2 for positive Voltage output P1 P2 P1 P1= P2 P1 > P2 Positive Pressure Applied No Pressure Difference Transducer Diaphragm Bond Pads SOP Dual Port MPAK LGA How Pressure Sensors Work
TM Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc ► PRT ( Piezo-Resistive Transducer ) ► Well-established process ► Temperature variations A B C D V IN Output mV V OUT R1R1 R3R3 R2R2 RgRg V OUT = V IN [ R3R3R3R3 R 3 + R g R2R2R2R2 R 1 + R 2 ] Apply Kirchhoff voltage and current laws: ► Capacitive ( Pressure Transducer) ► Low power consumption ► Small Size P- CELL Uncompensated Compensated Integrated TPMS Satellite Airbag C to V Converter P- CELL P REF PxPx Timing Associated System Change in Resistive Diaphragm leads to Voltage Shift. How Pressure Sensors Work
TM Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc How Capacitive Touch Sensors Work Multiplexed Electrodes Electrode Measurement Charging Pad Capacitance FingerElectrode Capacitance Change Detection
TM Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc Module Agenda ► What are sensors ► How sensors sense ► Evolution of sensors ► Hands-on demonstration ► Hands-on sensor labs ► Additional resources ► Review and Q&A
TM Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc Evolution of Sensors ► Integrated functionality ► Off-loading the analog-to-digital conversion ► Synergy of multiple sensors working together ► Full-system integration
TM Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc Transition to Active Mode Analog XYZ Voltage Output Only MCU with ADC ANALOG 3-AXIS OUT Evolution of 3-axis Low g Accelerometers x y z All analysis: done in the MCU based on continuous reading of XYZ voltage readings 1
TM Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc Evolution of 3-axis Low g Accelerometers Analysis done in the Accelerometer and on the MCU Digital XYZ with embedded functions MCU DIGITAL 3-AXIS OUT 2 SDA SCL INT1 Internal FIFO data buffer High Pass Filter All 6 orientations with Portrait to Landscape Transitions Single, Double, Directional Tap X, Y, Z Shake with Directional Info ODR Change when events not detected ODR Change with selected events INT2
TM Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc Digital Accelerometer Example MCU Low Power Mode Tap Interrupt? No MCU: Read Accelerometer Tap Status Register To get Direction And axis information Yes Direction? Positive MCU : Flip Image on the Screen Forward MCU : Flip Image on the Screen Backward Negative
TM Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc Evolution of Pressure Sensors Analog to Digital Transition to Active Mode Analog Voltage Output Only MCU with ADC ANALOG Pressure Output Vout 1 Digital Output MCU DIGITAL Pressure Sensor 2 I2C Increasing Temp Linear ideal Resistive/Capacitive Pressure output SPI or Temperature Compensation Pcomp = a0 + (b1 + c11*Padc + c12*Tadc) * Padc + (b2 + c22*Tadc) * Tadc
TM Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc Time Pressure Slow drift = thermal or barometric variation. Ignore/re-zero Slow drift = thermal or barometric variation. Ignore/re-zero Slow drift = thermal or barometric variation. Ignore/re-zero Slow drift = thermal or barometric variation. Ignore/re-zero Walking up stairs. Valid pressure change rate and pattern. Record altitude change Elevator ride. Valid pressure change rate and pattern. Record altitude change Enter pressurized building. Invalid pressure change rate and pattern. Ignore/re-zero 23 Example: Challenges to Altimeter implementation Pressure is not Linear in nature. For a short distance (20 ft), it can be assumed to be linear. p h =p 0 x e -h/7990m h =18400m x log p 0 /p h p 0 = 101.3kpa ALTIMETRY Pressure (kPa) Altitude (ft)
TM Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc Proper Solution: Smart Multiple Sensor Altimetry/Dead Reckoning System Temp Sensor XYZ Accelerometer Pressure Sensor Compensation for temperature shifts Motion feedback – No motion? No change for altitude, identifies drift/weather scenario for changes. Steps/walking. Altitude. Barometric pressure drift compensation - make adjustments due to weather patterns vs. Altitude. GPS System Loss of GPS signal- Zero last known altitude, location in front of building, Wilderness, etc. Dead Reckoning Calibration Software System Location Humidity Sensor Adjustments for air density, weather pattern fine tuning Gyro/Magnetic Compass Motion, turning of user.
TM Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc Evolution Toward Full System Solutions STEP1: 32-bit MCU with accelerometer embedded with the ability to operate in both MASTER and SLAVE mode STEP2: 32-bit MCU with accelerometer + pressure sensor embedded with the ability to operate in both MASTER and SLAVE mode Accelerometer + MCU Accelerometer + Pressure + MCU
TM Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc Module Agenda ► What are sensors ► How sensors sense ► Evolution of sensors ► Hands-on demonstration ► Hands-on sensor labs ► Additional resources ► Review and Q&A
TM Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc Introduction to the Tower Sensor Module ► Freescale digital accelerometer ► Freescale digital miniature barometer ► Freescale capacitive touch sensor ► Freescale touch sensing software suite ► Sensirion digital temperature/humidity ► Intersil ambient light with proximity
TM Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc Key Markets/Implementations Landscape/portrait determination Mobile product user interface by limited gestures User interface navigation with 2 position tilt to scroll Power mode determination Freescale’s MMA7660FC Digital Accelerometer
TM Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc Key Markets/Implementations Medical Respiratory as Altimeter Wound Management Altimeter & Barometer Temp & Pressure Sensing Package Tracking Pressure & Temperature Information Security & Safety Ambient pressure switch Car Cabin and Room Pressure Freescale’s MPL115A Miniature Digital Barometer
TM Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc Freescale’s MPR121 Capacitive Touch Sensor Key Markets/Implementations ► Button replacement ► Switch replacement ► Touch pads ► PC peripherals ► MP3 players ► Remote controls ► Mobile phones ► Lighting control
TM Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc Freescale’s MPR03x Capacitive Touch Sensor Key Markets/Implementations ► Button replacement ► Switch replacement ► Touch pads
TM Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc Freescale Touch Sensing Software Suite Key Markets/Implementations ► Touch pads ► Multimedia boards ► Keyboards ► Touch screens ► Mouse ► Remote controls ► Front panels ► Gaming controls ► Building control panels ► Instrumentation panels ► Medical devices interfaces ► PC GUI application for electrodes characterization
TM Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc Temperature / Humidity – SHT21 Key Markets/Implementations ► Size conscious devices ► Consumer devices ► Mobile phones ► Climate control/monitoring ► Comfort zone devices ► Automotive applications
TM Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc Ambient Light / Proximity – ISL29011 Key Markets/Implementations ► Display and keypad dimming adjustment and proximity sensing: Mobile devices: Smartphones, PDAs, GPS Computing devices: Laptops, Webpads Consumer devices: LCD-TVs, Digital Picture Frames, Digital Cameras ► Industrial and medical light and proximity sensing
TM Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc Interact with the Sensors FreeMASTER Demonstrations ► Interact with the various sensors on the TWR-SENSOR and view the real-time interactions using the FreeMASTER application
TM Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc Module Agenda ► What are sensors ► How sensors sense ► Evolution of sensors ► Hands-on demonstration ► Hands-on sensor labs ► Additional resources ► Review and Q&A
TM Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc Hands-on Sensor Labs – Overview of Labs ► Incorporate the TWR-SENSOR into the TWR- MCF5225X kit ► Use the MQX RTOS to read data from the sensor ► Lab #1: Display sensor data on a web site
TM Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc Hands-on Sensor Labs – Sensor / Tower System Setup ► Install the following modules into your Tower System Elevator Modules: TWR-MCF5225X TWR-SENSOR TWR-SER (Ensure the primary edges are aligned and inserted into the functional elevator) ► Connect the Ethernet cable between the TWR-SER and the Host PC ► Connect the USB cable between the TWR-MCF5225X and the Host PC
TM Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc Hands-on Sensor Lab #1 – Compiling the MQX Sensor Project ► Follow the lab guide: Open CodeWarrior Project Examine the source code Compile Tower Sensor Project
TM Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc Hands-on Sensor Lab #1 – Programming the Tower MCU Module ► Follow the lab guide: Program the TWR-MCF5225X Reconnect the USB cable between the TWR- SENSOR and the PC
TM Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc Hands-on Sensor Lab #1 – Interact with the Sensors ► Follow the lab guide: Open the sensor data Web page Interact with the sensors
TM Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc Module Agenda ► What are sensors ► How sensors sense ► Evolution of sensors ► Hands-on demonstration ► Hands-on sensor labs ► Review and Q&A ► Additional resources
TM Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc Review and Q&A By now, you should: ► Have a broader awareness of the Freescale Sensor Portfolio ► Be familiar with potential applications of sensors, including the coordination of data from multiple sensors ► Be familiar with the Freescale Tower System Sensor Module and it’s use of TWRPI’s to quickly evaluate various sensors ► Be familiar with how MQX can be utilized to interact with the TWR-SENSOR module, an Ethernet stack and a USB stack
TM Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc Module Agenda ► What are sensors ► How sensors sense ► Evolution of sensors ► Hands-on demonstration ► Hands-on sensor labs ► Review and Q&A ► Additional resources
TM Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc Freescale Documentation ► MC9S08QE96 Data Sheet MC9S08QE96 Data Sheet ► MC9S08JM60 Data Sheet MC9S08JM60 Data Sheet ► MMA7660FC Accelerometer Data Sheet MMA7660FC Accelerometer Data Sheet ► MPL115A Barometer Data Sheet MPL115A Barometer Data Sheet ► MPR121 Capacitive Touch Sensor Data Sheet MPR121 Capacitive Touch Sensor Data Sheet ► MPR03x Capacitive Touch Sensor Data Sheet MPR03x Capacitive Touch Sensor Data Sheet ► Touch Sensing Software Users Guide Touch Sensing Software Users Guide
TM Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc Further Reading and Training ► Freescale Tower System Freescale Tower System ► Freescale Sensors Freescale Sensors ► FreeMASTER FreeMASTER ► CodeWarrior Development Tools CodeWarrior Development Tools ► Freescale MQX Software Solutions Freescale MQX Software Solutions
TM Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc Back-up Slides
TM Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc Accelerometers Accelerometers Key Terminology g’s (acceleration due to gravity) Sensitivity mV/g or counts/g 0g offset Dynamic range
TM Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc Pressure Sensors Pressure Sensors Key Terminology Type: absolute, differential, gauge Temperature compensation Auto zero the offset
TM Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc Key Markets/Implementations Landscape/portrait determination Mobile product user interface by limited gestures User interface navigation with 2 position tilt to scroll Power mode determination Freescale MMA7660FC Digital Accelerometer
TM Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc Features Low current consumption ±1.5g 6-bit 3-axis accelerometer I2C Digital Output (400 kHz max.) Configurable output data rate ( samples/s) Configurable auto wake/sleep Low voltage operation: 2.4 V – 3.6 V Configurable orientation detection (portrait/landscape) Gesture detection (including shake and tap detection) MMA7660FC Development Kits: RD3803MMA7660FC KIT3803MMA7660FC LFSTBEB7660 * Freescale MMA7660FC Digital Accelerometer * LFSTBEB7660 requires LFSTBUSB
TM Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc Key Markets/Implementations Medical Respiratory as Altimeter Wound Management Altimeter & Barometer Temp & Pressure Sensing Package Tracking Pressure & Temperature Information Security & Safety Ambient pressure switch Car Cabin and Room Pressure Freescale MPL115A Miniature Digital Barometer
TM Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc Features Cost effective I 2 C & SPI interface Low power 1 μA sleep, 3 μA active (1 Hz sampling) Factory calibrated V to 5.5 V supply 50 kPa to 115 kPa absolute pressure 10-bit ADC 1 kPa accuracy Temperature sensor Simple slave device -40°C to +105°C operating temperature Freescale MPL115A Miniature Digital Barometer
TM Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc Freescale MPR03xCapacitive Touch Sensor Key Markets/Implementations ► Button replacement ► Switch replacement ► Touch pads
TM Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc Freescale MPR03xCapacitive Touch Sensor Features ► I 2 C interface, with optional IRQ ► Compact 2 mm x 2 mm x 0.65 mm 8-lead UDFN package ► 1.71 V to 2.75 V operation ► 8 μA average supply current ► 4 μA maximum shutdown current ► Intelligent touch detection capability ► Threshold based detection with hysteresis ► Supports up to 3 touch pads ► Only one external component needed ► Multiple devices in a system allow for up to 6 electrodes ► -40°C to +85°C operating temperature range
TM Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc Freescale MPR121Capacitive Touch Sensor Key Markets/Implementations ► Button replacement ► Switch replacement ► Touch pads ► PC peripherals ► MP3 players ► Remote controls ► Mobile phones ► Lighting control
TM Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc Freescale MPR121Capacitive Touch Sensor Features ► I 2 C interface, with optional IRQ ► Compact 3 x 3 x 0.85 mm 20-lead QFN ► 1.71 V to 3.6 V operation ► 29 μA supply current ► 4 μA maximum shutdown current ► Intelligent touch detection capacity ► Threshold based detection with hysteresis ► Supports up to 12 touch pads ► Only one external component needed ► (4) I2C addresses allow up to 48 electrodes ► -40°C to +85°C operating temp range Feature Improvements ► New auto-configuration system ► 2nd generation filtering system ► Increased voltage range ► 100% independent electrode control
TM Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc Freescale Touch Sensing Software Suite Key Markets/Implementations ► Touch pads ► Multimedia boards ► Keyboards ► Touch screens ► Mouse ► Remote controls ► Front panels ► Gaming controls ► Building control panels ► Instrumentation panels ► Medical devices interfaces ► PC GUI application for electrodes characterization
TM Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc Freescale Touch Sensing Software Suite Features ► Full API set support ► Configurable rotary, slider and keypad decoders ► Smart auto-calibration mechanisms to prevent environmental hassles ► Noise rejection algorithms ► Optimized buffer structure enabling any arrangement of electrodes ► Ability to enable and disable keys on runtime ► Auto repeat, stuck-up key, gorilla hand and other typical HMI function capability ► Ability to co-exist with other application code ► PC GUI application for electrodes characterization
TM Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc Temperature / Humidity – SHT21 Key Markets/Implementations ► Size conscious devices ► Consumer devices ► Mobile phones ► Climate control / monitoring ► Comfort zone devices ► Automotive applications
TM Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc Ambient Light / Proximity – ISL29011 Key Markets/Implementations ► Display and keypad dimming adjustment and proximity sensing: Mobile devices: Smartphones, PDAs, GPS Computing devices: Laptops, Web pads Consumer devices: LCD-TVs, Digital Picture Frames, Digital Cameras ► Industrial and medical light and proximity sensing
TM