Duvall Software Apps

Traffic Sign Detector application is anADAS(Advanced Driver Assistance System) implementation for trafficsignrecognition, which attempts to recognize a subset of theViennaConvention traffic signs. This subset includes speed signs,stop,give way, forbidden traffic, take over signs, pedestriancrossingwarnings and also some obligatory signs.The application uses the most recent OpenCV library for theimageprocessing and uses Neural Networks to identify the detectedtrafficsigns.If connected with an OBD-II adapter, like common ELM327Bluetoothadapter, will also allow to read the vehicle instantspeed and willwarn about possible excessive speed driving.

The Cardio Tracker application allowsthemonitoring and recording of your cardio activities usingstandardBluetooth Low Energy (LE) Cardio Heart Rate sensors. Theactivitiesrecorded are displayed as charts so that they can laterbeanalysed.The activities are store in an internal database andnoinformation is uploaded anywhere so your data will remaintotallyprivate, unless you choose to share them by using thebuilt-inshare feature.It's possible to have different profiles in the samedevice,which can be useful for instance if you want todifferentiateactivities recorded with different sports, or if youwant to usethe same device to record different people'sactivities.New statistic data is now also available for each profilewhichhelps keeping track of all the cardio activity history.

This application will only work inconjunctionwith the Esp8266-12 Test Board from AI-Thinker with thefactoryfirmware installed.The app uses the builtin Esp8266-12 HTTP server to sendandreceive data using the defined JSON API. This means it can beusedto switch on / off the existent LEDs, which will also set theGPIOpins Low / High. The app also allows the configuration oftheexternal WiFi settings, which can be used to connect theEsp8266-12module to your wireless Router / AP.If you have never configured the external WiFi in yourEsp8266-12module, you may configure it with this app. First youshould connectto the Internal network, which should be somethinglike"AI-THINKER_XXXXX" (default password "ai-thinker") and next gotothe WiFi Settings and enter the wireless Router / AP SSIDandpassword. If your wireless Router / AP is configured withWEPauthentication you must enter the HEX WEP password.In some Esp8266-12 modules, the connections for the Red andGreenLEDs come swapped from factory. If this is your case, enablethe Red/ Green LED swap in the app preferences.