Car IoT

Scenario: A toy car with a light sensor should drive through a dark tunnel. The car should transmit position and light intensity information to server. A second toy car should drive the same route and when it arrives at the tunnel, it should light up its LED.
What I need:

• A remote controlled toy car with LED, light sensor, computer and WiFi. Use Lego Mindstorms (LM) EV3.
• A server that listens to and broadcasts light intensity data.

Version plan:

• Version 1: Save data on LM.
• Save data on LM. Use number of wheel turns to approximate distance travelled. How do you persist data on LM?
• How to light up an LED with LM.
• Version 2: Use (local IP), host server on your laptop.
• How to transmit data from LM to server via WiFi.
• How to get data from server via WiFi to LM.
• Version 3: Use VPS and static IP.
• Version 4: Access data from an Android smartphone.
• Version 5: Use IMU to calculate distance.

Solar system model with magnetic levitation

See Story the levitating timepiece

Youtube channel idea

Pick java/android questions in Stackoverflow that are not complete projects and make videos that are supported by github. Value: When informatin is missing, it is difficult for novice people to use the answer in their projects.

App idea: no ads facebook

App idea: no ads facebook

Map for search and rescue operations

Tolga: Search and rescue personel have categories like 7 year old child etc. These categories define typical behaviour of the victim. For example, if it is a 7 year old child, it will not stay where it is and move at a certain speed.

It would be helpful to have a tool that

• Works without internet connection
• Draws map
• Lets the user input 
• victim category
• victim location 
• time passed or time the intelligence was obtained (time passed = current - obtained)
• Draws estimated location circle with radius according to category and time passed

Research:

• PDF: Decision support software for search & rescue operations
• Google maps API might be used offline. It is required to be run with internet connection for the first time. I could use OSMDroid as map container.
• Google maps static API provides maps as images. We could create this images at base where there is internet location. When on the mission we could draw and update circles on these images.
• OpenStreetMap: osmdroid

Book/tablet/phone holder to prevent neck pain/hernia

Neck hernia

Your vertebrae should be straight when doing time consuming things like reading books. Build a structure that holds the books at eye level when you are sitting, laying down, walking.

Examples:

• LEVO Book Holder
• Hold it
• example.

Traffic simulator

Lego + camera to manage traffic congestion. The street with most traffic should have more green light. Two options to detect traffic density:

1. Camera
2. Loop (magnetic field change detection)