Flutter Dart: Flutter 3D Buttons: https://medium.com/flutterpub/anatomy-of-material-buttons-in-flutter-first-part-40eb790979a6 Flutter Latest news: https://medium.com/flutter/two-months-of-fluttergoodnewswednesday-a12e60bab782 Build flutter app: https://www.youtube.com/watch?v=x0uinJvhNxIhttps://flutter.dev/docs/get-started/codelab Flutter toggle color after click: https://stackoverflow.com/questions/50863681/flutter-how-do-i-toggle-the-color-of-a-raisedbutton-upon-click Flutter on codePen: https://codepen.io/flutter Flutter gridlist examples: https://flutter.dev/docs/cookbook/lists/grid-lists Fetch data from server in flutter: https://flutter.dev/docs/cookbook/networking/background-parsing https://medium.com/flutterdevs/parsing-complex-json-in-flutter-b7f991611d3e UX Design in flutter: https://uxdesign.cc/flutter-design-challenge-onboarding-concept-1f5774d55646 Get the data from API: https://medium.com/flutter-community/parsing-complex-json-in-flutter-747c46655f51 Flutter time series: https://stackoverflow.com/questions/51739064/flutter-json-and-time-series-charts Flutter dart packages: https://www.w3adda.com/dart-tutorial/dart-packages Flutter dart introduction: https://www.w3adda.com/dart-tutorial/dart-introduction https://openlibrary.org/works/OL17556930W/Android_Fully_Loaded https://archive.org/details/unlockingandroid0000able/page/n5?q=Build+android+os Create mock server using postman: https://learning.postman.com/docs/postman/mock-servers/setting-up-mock/ Web Socket examples: https://www.websocket.org/echo.html Energy consumption calculator: https://www.rapidtables.com/calc/electric/energy-consumption-calculator.html Git hub basic course: https://www.udemy.com/course/git-and-github-crash-course-creating-a-repository-from-scratch/ Install svn on ubuntu: https://linuxtechlab.com/simple-guide-to-install-svn-on-ubuntu Flutter line chart,bar & pie chart: https://pub.dev/packages/fl_chart https://google.github.io/charts/flutter/example/bar_charts/simple.html https://www.digitalocean.com/community/tutorials/flutter-bar-charts https://github.com/imaNNeoFighT/fl_chart/blob/master/repo_files/documentations/pie_chart.md#sample-1-source-code Flutter list & grid view link: https://medium.com/@vignesh_prakash/flutter-listview-and-gridview-with-tabbar-221516518c75 Flutter Page color link: https://medium.com/flutter-community/a-deep-dive-into-pageview-in-flutter-with-custom-transitions-581d9ea6dded Flutter page control link: https://api.flutter.dev/flutter/widgets/PageController-class.html

STM 32 MCU and MPU Roadmap contains: 1. MPU (STM32MP1): - MPU with Arm Cortex-A7 650 MHz, Arm Cortex-M4 real-time coprocessor, TFT display, - Secure boot and Cryptography. - Combination of audio and real time processing with cortex A and M architecture. -STM32Cube AI tool running on cortex M4. - Camera and audio interfaces to simplify input device integration. Application: Used for real time and low power application and also graphic and communication high performance processing. Provide cloud based , making Smart home gateway with advance HMI and HD video. 2. High Performance MCUs(STM32F2, STM32F4, STM32FH7, STM32F7): These MCUs are available in single core as well as dual core. A7 type having large of flash and Ram is provided. STM32H7 having 280 Mhz embedding 2 MB flash ,1.4 MB RAM Application: graphics

JSON libraries 1.frozen Output JSON objects in C as JSON formatted strings and parse JSON formatted strings back into the C presentation of the JSON objects. FEATUES: • C and C++ complaint portable. • Several extra format specifiers supported. JSON token: This stucture contains- Pointer pointing to beginning of the value. Value length Type of the token Token types are string,number,true,false,null, object start, object end,array start and array end. API’s: • json_scanf Scans json string directly into c/c++ variables. • json_printf Print c/c++ variables directly into output stream. • json_setf Modifies existing json_string.