NXP Designs Knowledge Base

cancel
Showing results for 
Show  only  | Search instead for 
Did you mean: 

NXP Designs Knowledge Base

Discussions

Sort by:
Demo This demo showcases the Bluetooth Low Energy Mesh solution on Kinetis KW41Z devices, leveraging the Kinetis Bluetooth LE v4.2 stack. The audience will be able to interact with remote nodes of the mesh via a single laptop console. The remote nodes offer feedback via a RGB LED array.     Features: Bluetooth® LE Mesh software implementation over the Kinetis BLE stack v4.2 Mesh nodes made up of FRDM-KW41Z evaluation boards with Adafruit NeoPixel LED shields Interactive configuration and control of the mesh nodes with feedback on the LED arrays Sensor data sent via the Mesh to the cloud _______________________________________________________________________________________________________   Featured NXP Products: KW41ZlKinetis BLE & 802.15.4 Wireless MCU|NXP _______________________________________________________________________________________________________    
View full article
Demo This demo showcases a bluetooth headset using NXP’s Near Field Magnetic Induction device NxH2280, enabling truly wireless streaming of voice, audio and data. The demo is built using the NxH2280 Application Development Kit for hearables Features: very power efficient audio and data streaming from ear-to-ear: HQ audio < 2.5 mW works through human body with ultra-low absorption: SAR is 100 times lower than Bluetooth ensures reliable and private communication _______________________________________________________________________________________________________ Featured NXP Products: NxH2280: Near Field Magnetic Induction radio|NXP LPC1102: low power, space efficient microcontroller|NXP NT3H1101: Energy harvesting NFC Forum Type 2 Tag for bluetooth simple pairing|NXP _______________________________________________________________________________________________________ Picture of demo: implemented using headphone shells Picture of NxH2280 ADK C11
View full article
Demo This demo shows how the FlexIO peripheral can be utilized to connect directly to an RGB TFT display to deliver a rich graphical display. The demo uses the versatile Tower ecosystem to connect the TWR-K80F150M MCU board to the display. The demo is well documented by an Application note and associated software.       Features: Dynamic Graphical LCD (480x272) with 16bt RGB interface Images stored in fast external Serial NOR flash           FlexIO utilized to generate 16bit interface to TFT display with minimal CPU intervention   _______________________________________________________________________________________________________     Featured NXP Products Product Link Kinetis® K8x Secure Microcontrollers (MCUs) based on Arm® Cortex®-M4 Core https://www.nxp.com/products/processors-and-microcontrollers/arm-microcontrollers/general-purpose-mcus/k-series-cortex-m4/k8x-secure:K8X-SCALABLE-SECURE-MCU?&cof=0&am=0 Tower® System Modular Development Board Platform https://www.nxp.com/design/development-boards/tower-development-boards:TOWER_HOME?&tid=vantower Kinetis® K80 MCU Tower® System Module TWR-K80F150M|Tower® System Board|Kinetis® MCUs | NXP    Application Notes AN5275.pdf AN5280.pdf AN5280SW.zip _______________________________________________________________________________________________________      
View full article
Demo See what FlexIO Does _______________________________________________________________________________________________________ KL28Z FlexIO Camera Demo FRDM-KL28Z board connects with a camera device module via FLexIO interface. The FlexIO peripheral emulates camera interface to capture raw image data. And the real-time images are displayed on a TFT LCD. Features: The FlexIO peripheral emulates camera interface. Captures 320x240 QVGA images via 8-bit width data bus. Displays real-time images on a TFT LCD. The sample rate is up to 15fps. _______________________________________________________________________________________________________ KL28Z FlexIO LCD Demo TWR-KL28Z board drives a TFT LCD panel via FlexIO emulated 8080 interface. Features: The FlexIO peripheral emulates 8080 parallel interface with full writing and reading functions. Drives a 320x240 resolution TFT LCD via the interface. Bus width could be 8 bits or 16 bits. The refresh rate is up to 128 fps with 16-bit width data bus and 48MHz core clock. Featured NXP Products: Flex Your Mind with Kinetis FlexIO projects - Hackster.io ARM Cortex-M4 Cores|Kinetis K8x MCUs|NXP K8X Freedom Development Platform|NXP  QRDEMOUG.pdf _______________________________________________________________________________________ USB Video Camera This demo shows how the FRDM-K82F board along with an OV7670 Camera module can be utilized to create a USB web camera application. The demo application software is delivered as part of the KSDK software enablement. The FS USB video class demonstration can deliver images to PCs or tablets. Demo / product features USB Video device class demonstration application included in Kinetis SDK Easy connection to PC or tablet  display and process video captured from the device     FlexIO camera driver utilized to interface to OV7670 camera module NXP Recommends http://www.nxp.com/products/microcontrollers-and-processors/arm-processors/kinetis-cortex-m-mcus/k-series/k8x-scalable-secure-mcus:K8X-SCALABLE-SECURE-MCU?cof=0&am=0 AN5275: Using FlexIO for parallel Camera Interfacehttp://cache.nxp.com/files/microcontrollers/doc/app_note/AN5275.pdf?fsrch=1&sr=1&pageNum=1 AN5280: Using Kinetis FlexIO to drive a Graphical LCD Training C25
View full article
Demo Running NXP’s i.MX6SX application processor, Earthquake warning system proof of concept is able to warn citizen about Earthquake. Data are gathered from local sensor, remote sensors based on K64F NXP’s controllers and seismology servers from Internet. Features: Give citizens warning against Earthquakes Runs on the NXP i.MX6SX application processor with Linux® OS. Presents i.MX6SX asymmetrical architecture features, where data are measured locally by Cortex-M4 with FreeRTOS and displayed and presented by Cortex-A9 core with Linux® OS. Cortex-M4 can measure in real-time and monitor Linux part. Cortex-A9 can sleep to save power and be waked up by the quake detected by Cortex-M4. Communication between cores via RPMsg. Remote sensor’s accelerometer data are measured running K64F microcontrollers Seismology server’s data are displayed and analysed ___________________________________________________________________________________________________________________________ Featured NXP Products: Product Link Freedom Development Platform for Kinetis® K64, K63, and K24 MCUs FRDM-K64F Platform|Freedom Development Board|Kinetis MCUs | NXP  i.MX 6SoloX Processors - Heterogeneous Processing with Arm® Cortex®-A9 and Cortex-M4 cores i.MX 6SoloX Applications Processors | Arm® Cortex®-A9, Cortex-M4 | NXP  __________________________________________________________________________________________________________________________
View full article
NFC-enabled Audio System Tap-to-pair has become a common habit when connecting an NFC-enabled smartphone conveniently to a wireless speaker. Bringing this experience to the next level, even a multi-speaker audio system can be set up with NFC. If all speakers are equipped with an NFC chip, you simply tap one speaker to another to establish the connection. That’s what we call a true wireless stereo system - and it works with any phone, no matter if it is NFC-enabled. The same can be done with NFC-headsets. Features: Tap-to-pair to connect an NFC-enabled smartphone conveniently to a wireless speaker or headphone Easy integration into any OS environment ___________________________________________________________________________________________________________________________ Featured NXP Products: PN7210|NXP http://www.nxp.com/products/:PN7120A0EV NFC multi-speaker and headset audio system Speaker Version Tap-to-pair has become a common habit when connecting an NFC-enabled smartphone conveniently to a wireless speaker. Bringing this experience to the next level, even a multi-speaker audio system can be set up with NFC. If all speakers are equipped with an NFC chip, you simply tap one speaker to another to establish the connection. That’s what we call a true wireless stereo system - and it works with any phone, no matter if it is NFC-enabled. Headset version Same use case can be shown with NFC headset, with smartphone being connected to the first headset by simply tapping to the smartphone, and then tap the 2 headset together to share the audio content to the second headset. Features: Speaker Version Traditional push button pairing NFC pairing Action for pairing Push sync button as long as requested in the user manual Touch the 2 speakers together Connection time for bluetooth pairing Usually at least 10 to 30 sec 1 second Connection repeatability Varied from environment Sometimes fails Always repeatable Usual issues Can connect to wrong bluetooth device if there are multiple ones nearby No error possibility Scalability Adding a 3rd speaker or more requires again same manual action As easy as before Unpairing Must follow carefully the user manual, risk is that speaker can stay connected or wrong one be disconnected Touch the 2 speakers together Headset version Share immediately your music with your friend, or neighbour in public transportation, by simply tapping both headset No need to connect your friend or neighbour’s phone to your phone, simply tap both headset Disconnect/unpaired by tapping again both headset
View full article
Demo Running on NXP’s i.MX 6QuadPlus applications processor, Crank Software’s Movie Kiosk demo is a rich 2D and 3D user interface for previewing movies, purchasing tickets and selecting seats        Features: Runs on the NXP i.MX 6QuadPlus applications processor with Linux® OS.  The i.MX 6QuadPlus delivers 50 percent improvement in both graphics processing & memory utilization. Created with Crank Software Storyboard Suite using direct Photoshop (PSD) and 3ds Max (FBX) content import. Full video background leveraging platform’s video codec and layer blending. Multi-stream-capable HD video engine delivering up to 1080p decode. Integrated 2D and 3D animated content guiding user interactions.  Independent graphics processing units: OpenGL® ES 3.0 3D graphics accelerator with four shaders, 2D graphics accelerator, and dedicated OpenVG™ 1.1 accelerator. 3D Model provides a 1:1 virtual to physical model for theater seat selection _________________________________________________________________________________________________________________________________________ Featured Products: Storyboard Suite | Crank Softwarehttp://www.nxp.com/products/microcontrollers-and-processors/arm-processors/i.mx-applications-processors/i.mx-6-processors/i.mx6qp/i.mx-6quadplus-processor-quad-core-high-performance-advanced-3d-graphics-hd-video-advanced-multimedia-arm-cortex-a9-core:i.MX6QP i.MX6QP|i.MX 6QuadPlus Processors|Quad Core|NXP i.MX6DP|i.MX 6DualPlus Processors|Dual Core|NXP SABRE Board Reference Design|NXP  (Evaluation / Reference board) 14-Channel Configurable Power Management IC|NXP _________________________________________________________________________________________________________________________________________ C53
View full article
This demo shows a use case of the NXP QN9021 in the Zepp Bluetooth Smart sports sensor to send sensor data to smartphone app for data analysis and provide feedback to users     Features: Zepp Bluetooth Smart sports sensors are designed to monitor performance with a smartphone app for baseball, golf and tennis. Zepp allows you to get to know your swing or stroke inside and out through instant 3D and video analysis. Users can learn from the pros; capture your personal mechanics and compare your swing side-by-side to many of the world’s greatest athletes _________________________________________________________________________________________________________________________   Featured NXP Products: Ultra low power Bluetooth LE system-on-chip s|NXP _________________________________________________________________________________________________________________________   Other Helpful links: ZEPP _________________________________________________________________________________________________________________________
View full article
Demo Owner: Rick Dumont This demonstration shows 2 examples of AC/DC solutions for efficient fast battery charging. Firstly a slim 25W USB PD + QC adapter built with NXP latest chipset solution. The adapter will demonstrate a fully USB PD (Power Delivery) and QC (Quick Charge) compliant solution charging a true PD device (Apple macbook air / Google Pixel notebook or Google SP) or a QC smartphone (e.g. Samsung S6 edge). Secondly a compact 33W Direct Charging adapter built with NXP latest chipset solution. The adapter will demonstrate a fully compliant direct charging solution charging a true HiSilicon FSP device, supporting the FSP charging protocol like a Huawei smartphone Furthermore will be demonstrated the system configuration and debug features of the secondary controller by using NXP Graphical User Interface (GUI) and control board. Features: Best-in-Class overall efficiency – meets all DOE & EU-CoC regulations Smallest form factor / highest power density due to high efficiency High integration level & very low BOM cost - minimum number of external components Very flexible system due to on-chip DSP and memory – Fully meets USB-PD, QC, FSP/SCP protocols Main functionality (V & I & protections) configurable by programmability of key system parameters All protections integrated in hardware – OVP, OCP, OPP, OTP, various short circuit conditions Low cost and suitable packages for both reflow and wave soldering Optional tamper resistant authentication chip allowing own eco-system specific accessories _________________________________________________________________________________________________________________________________________ Featured NXP Products: 25W USB PD & QC reference application, including a:      - TEA1936 primary controller (DCM/QR)      - TEA1993 synchronous rectification controller      - TEA1905 secondary USB PD and QC controller 33W Direct Charge reference application, including a:      - TEA1936 primary controller (DCM/QR)      - TEA1998 synchronous rectification controller      - TEA1901 secondary Direct Charge controller NXP GUI w/ control board _________________________________________________________________________________________________________________________________________ C08
View full article
NXQ1TXH5 One-Chip Qi Low Power Wireless Charging Transmitter     Demo Owner: Rick Dumont   The NXQ1TXH5 is a one-chip low power Qi transmitter, and it enables an ultra-low cost wireless charging transmitter dramatically reducing application cost while still providing latest WPC version 1.2 Qi compliant performance. The NXQ1TXH5 demo is provided in a small form-factor on which Qi enabled phones can be charged. The demonstration shows the extremely low component count, which is interesting for professionals to understand, and at the same time showing a real-life eye-catching form-factor that draws non-technically skilled person attention. The demonstration challenges people to actually charge their phone and experience charging without wires.   Features: Ultra low component count solution. Reducing application cost by 30-50% compared to other solutions Easy to layout on 2-sided PCB Excellent EMI behaviour without additional external filtering Ultra low standby power of 10 mW meeting 5-start smartphone charger standby rating High efficiency of 75% Excellent thermal behaviour due to NXPs proprietary low RDSon power silicon technology _________________________________________________________________________________________________________________________________________   Featured NXP Products: Product Link NXQ1TXH5: One-chip 5 V Qi wireless transmitter https://www.nxp.com/products/power-management/wireless-power/one-chip-5-v-qi-wireless-transmitter:NXQ1TXH5?&lang_cd=en NXQ1TXL5: Low-cost one-chip 5 V Qi wireless transmitter NXQ1TXL5: Low-cost one-chip 5 V Qi wireless transmitter | NXP  NXQ1TXH5 WPC 1.2 Qi-compliant wireless charger demo board NXQ1TXH5 WPC 1.2 Qi-compliant wireless charger demo board | NXP    _________________________________________________________________________________________________________________________________________    
View full article
This demo shows the temperature monitor solution. We will show the logger ADK (starter kit) and various form factors from current customers (pcbs, labels). NHS3100 can be used for all goods where temperature control is essential for the quality guarantee: pharmaceuticals, medical goods, fruits, cut flowers, chemicals, fish and meat. Demo / product features Single chip solution for pharmaceutical and perishable temperature monitoring Easy integration into final design solution (NHS3100 + battery + NFC antenna) Accurate temperature sensors Large logging space NXP Recommends Temperature logger - NHS3100 Smart Pharma
View full article
Demo NXP has comprehensive solutions for USB Type-C that covers USB power delivery (USB PD), security, signal integrity, and protection.  The video below shows complete end-to-end solution covering super speed USB data and video combined with USB PD and authentication.  Demo / Product features Complete USB Type-C End to End Solution USB Power Delivery & Display Port Alternative Mode USB PD AC/DC charger with Authentication   NXP Recommends Check all products associated with USB Type-C on below link: http://www.nxp.com/usb-type-c Training Introduction to the Next-Generation USB Type-C Connector and NXP’s End-to-End Solution 
View full article
The purpose of this project is the control of a RGB LED panel using the FlexIO peripheral included in the Kinetis K82 microcontroller. The FlexIO peripheral offers a great advantage, unloading the CPU in the process of refreshing the LED color and brightness information, comparing with other control methods using GPIO bit-banging or PWM + DMA. I will use different method. The panel will use LED stripes with the WS2812B controller. We will also have a simulation platform for developing the applications. Hardware: 30 x16 LED WS2812B Panel Multiplexer board FRDM-K82 Uctronics QVGA display Software: IAR Workbench 7.50.1 SDK 1.3 for the Kinetis K82 FreeRTOS eGUI graphic library You can watch the video with the LED panel working: Video Link : 4707 Part 1: Building the LED Panel Part 2: LED control method using the FlexIO Part 3: Software for LED Panel emulation Part 4: Software for panel control
View full article
Demo Hexiwear platform combines the style and usability found in high-end consumer devices, with the functionality and expandability of sophisticated engineering development platforms, making Hexiwear the ideal form factor for the wearable market, as well as other edge-node IoT solutions. Completely open-source and developed by MikroElektronika in partnership with NXP, the Hexiwear hardware includes the low power, high performance Kinetis K6x Microcontroller based on ARM Cortex-M4 core, the Kinetis KW40Z multimode radio SoC, supporting BLE in Hexiwear. The Hardware features included 6 on-board sensors such as Optical Heart Rate Monitor, Accelerometer and Magnetometer, Gyroscope, Temperature, Humidity, light and Pressure sensor's. Hexiwear also includes Color OLED Display, Rechargeable battery and External flash memory. $49 NXP Hexiwear, IoT and Wearables development platform – ARMdevices.net   Hexiwear is supported with its own application for Android and iOS, so customers can connect the device to the cloud straight out of the box, without any additional software development. Hexiwear uses FreeRTOS, the Kinetis software development kit (SDK) and the Kinetis Design Studio IDE. The Hexiwear platform is also expandable with the option to add nearly 200 different, additional sensors through click boards™      Features •       Eye-catching small form factor (smaller than 2” by 2”) board with open source hardware with 7 NXP components and 8 sensors on-board. •       Designed for wearable applications with the onboard rechargeable battery, OLED screen and onboard sensors such as optical heart rate, accelerometer, magnetometer and gyroscope. •       Designed for IoT end node applications with the onboard sensor’s such as temperature, pressure, humidity and ambient light. •       Complete software solution with open source embedded software, cell phone apps and cloud connectivity. •       Flexibility to let you add the sensors of your choice from 180+ plug and play add on boards. NXP Products Recommended ARM Cortex-M4|Kinetis K64 120 MHz 32-bit MCUs|NXP  ARM Cortex-M0+|Kinetis KW40Z 2.4 GHz 32-bit MCUs|NXP  FXOS8700CQ Accelerometer and Magnetometer FXAS21002 Gyroscope MPL3115A2R1 Altimeter MC34671 Battery charger Other Links Kickstarter Hexiwear Design Files Hexiwear|NXP     News Module Targets Rapid IoT Development | Embedded content from Electronic Design  NXP Accelerates Smart Wearable Product Development | Business Wire  Mouser Stocking the Hexiwear Open Source IoT Platform from MikroElektronika and NXP | Electronics360  Contest Hexiwear: The Do-Anything Device! - Hackster.io  Hexiwear: Quickly Build Quality IoT Devices - HWTrek  http://www.rs-online.com/designspark/electronics/eng/blog/test-drive-hexiwear-the-wearable-iot-development-kit  Blogs https://www.linkedin.com/pulse/hexiwear-complete-iot-wearable-development-solution-powered-kedia?trk=prof-post  Introduction to Hexiwear – a wearable development kit for the IoT era – HWTrek Blog  Win an Oculus Rift! Hexiwear Design Contest | mbed  https://mcuoneclipse.com/2016/07/12/hexiwear-teardown-of-the-hackable-do-anything-device/  Freedom development platform: Hackster.io conte... | element14 Community  JavaScript mobile apps for your NXP Hexiwear BLE device | Evothings 
View full article
Demo The NXQ1TXH5 is a one-chip low power Qi transmitter, and it enables an ultra-low cost wireless charging transmitter dramatically reducing application cost while still providing latest WPC version 1.2 Qi compliant performance.   The NXQ1TXH5 demo is provided in an exciting form-factor with a backlight module on which Qi enabled phones can be charged. The demonstration shows the extremely low component count, which is interesting for professionals to understand, and at the same time showing a real-life eye-catching form-factor that draws non-technically skilled person attention. The demonstration challenges people to actually charge their phone and experience charging without wires.   One of the table modules is provided with a table-fan in which there is a Qi power receiver built-in. It can be used as a standby-demo to further draw attention to the demo, even when no phone is placed, and it avoids phones getting lost when there is no expert attending the demo.     The Qi wireless charging demo consists of a module that can be built into any table, using a 181mm round hole and it can simply be dropped into the hole. It is delivered with a universal mains power supply and hence easy to install. Below pictures show the Qi wireless charging table module demo, as well as dimensions to help building it into available infrastructure.   Demo / product features   Ultra low component count solution. Reducing application cost by 30-50% compared to other solutions Easy to layout on 2-sided PCB Excellent EMI behaviour without additional external filtering Ultra low standby power of 10 mW meeting 5-start smartphone charger standby rating High efficiency of 75% Excellent thermal behaviour due to NXPs proprietary low RDSon power silicon technology NXP Recommends   NXQ1TXH5 - Low cost version; contact your local sales representative for information on NXQ1TXL5
View full article
The quadcopter drone is a very popular design for an unmanned aerial vehicle (UAV). It consists of a flight controller and four electronic speed controllers (ESCs), one for each motor. The flight controller is equipped with a radio to receive flight commands provided by the pilot and the inertial measurement unit (IMU). The IMU provides information (such as velocity and orientation) that are necessary for autonomous stabilization of the vehicle, using the internal accelerometer, gyroscope, and sometimes the magnetometer and GPS receiver.   Resources Quadcopter Drone Reference Design   Drone Examples - powered by NXP 3DR Drone Spiri Programmable Flying Robot  DJI Phantom 3 Advanced
View full article
Classic board games with a touch of magic. NFC adds extra functionality to familiar fun. Interact more intuitively, speed up gameplay, and easily pick up where you left off. Experience board game immersions like you never have before. NFC helps bringing the 2-D board game experience to life. Players move their NFC-equipped pieces across the board as usual, but they can now be electronically tracked. The game processor uses this tracking data - coupled with information about the piece itself that can also be stored in the tag, creating an exciting gaming environment that's alive with action. It also enables new gameplay dimensions like on-line and interactive play scenarios.   Features enabled by NXP •Detection of up to 40 RFID Objects on large surface powered by single RFID reader •Direction detection of the game pieces •Connectivity to host system via USB or BLE   Recommended Products SLRC 610 – High perfromance RFIDreader Icode SLIx – Ultra low power RFID tag LPC11uxx – Microcontroler with embeded FS USB 74HCxxx – Ultra thin Analog Switches   Resources More information about NFC gaming: http://www.nxp.com/solutions/portable-wearable/gaming.html
View full article
    Description: Teensy 3.1 and Teensy-LC are a complete USB-based development tools featuring respectively the Kinetis 32-bit Cortex-M4 K20 and Cortex-M0+ KL26 devices running @ 72 and 48 MHz. Teensy 3.1 is equipped with 256KB flash and 64KB RAM. Teensy-LC board is equipped with 62KB flash and 8KB RAM.   Value Propositions * Very small footprint development tools * Very Low Cost dev tool * They are able to implement many different projects * Open source SDKs   Teensy board with very high extended-Arduino compatible performance levels and libraries taking advantage of Kinetis features like low power modes and internal DMA. Libraries for LED (WS2811) and 16bit 44.1kHz audio quality is where Makers go when they need quality, performance and small size. FEATURES Hardware Specifications Specification Teensy LC Teensy 3.0 Teensy 3.1 & 3.2 Units Processor MKL26Z64VFT4 32 bit ARM Cortex-M0+ 48 MHz MK20DX128 32 bit ARM Cortex-M4 48 MHz MK20DX256 32 bit ARM Cortex-M4 72 MHz Flash Memory 62 128 256 kbytes RAM Memory 8 16 64 kbytes EEPROM 1/8 (emu) 2 2 kbytes I/O 46, 5 Volt 34, 3.3 Volt 34, 3.3V, 5V tol Analog In 8 14 21 PWM 9 10 12 UART,I2C,SPI 1,1,1 3,1,1 3,2,1 Price $24.00 $19.00 $19.80 USD   Software Enablement Teensy 3.2 & 3.1: New Features https://www.pjrc.com/store/teensylc.html     RECOMMENDED PRODUCTS Product Description Kinetis K Microcontroller Kinetis L Microcontroller RESOURCES Title Type PJRC (Teensy Official Website) Web Page
View full article
Demo New S32V234 silicon demonstrating the MIPI CSI camera connection with execution of ISP algorithm and comparison with original camera image. New ADAS solution for vision, sensor fusion and surround view application Quad-core ARM® Cortex®-A53 processor, CogniVue APEX™, Vivante GC3000 GPU, and advanced memory bus system architecture Integrated ISP for camera video input and filtering Featured NXP Product S32V230 Family of Processors for Advanced Dri|NXP Other Advanced Driver Assistance Systems (ADAS)|NXP
View full article
    Features QorIQ Processing Platforms BSC9131 SoC based LTE small cell Zero intrusion by fitting in a lamppost’s existing photocell socket Avoids costly site acquisition and lengthy planning procedures Backhaul agnostic – Fiber, copper, PoE wireless P2P Trust architecture provides secure computing environment Block Diagram
View full article