Electronic – What do i need to communicate the sensors with LoRaWAN, simply

There are quite a few different ways you could achieve this. Here are a few:

1. You could program a small microcontroller like a Microchip PIC16F84A to watch the button and the LED. Whenever the button is pressed, the PIC16F84A sends a character through a FTDI serial chip to a USB port on your computer. On your computer, a program written in Processing watches the USB port and updates the pictures on the screen. Total cost: $20 for some chips and a breadboard.

2. You could buy a Bluetooth Arduino with a prototyping shield. The Arduino talks over a Bluetooth chip to a Bluetooth card in your PC. A program written in Python listens to the Bluetooth card and draws the appropriate picture on the screen with the Pygame library. Total cost: $150 for a Bluetooth Arduino.

3. You could attach a webcam to your PC that watches your LED and the button. A program written in Ruby is analyzing every image coming from the webcam, comparing it to the previous image. When it detects a change in the region of the image near the button, it looks at the color of the pixels in the LED region and updates a value in a database. A webpage auto-refreshes using the jQuery timer plugin, and updates an image on the screen based on the value in the database. Total cost: $25 for a crappy webcam.

4. You could find an old PC with a parallel port and install Ubuntu Linux on it. You connect the LED and the button to pins on the parallel port and then write a program in C that reads address 0x378. Based on the data returned, it makes calls into a C graphics library that does the appropriate screen drawing. Total cost: free, if you can find a PC old enough.

5. You replace the power button on your computer with the button in question, and the power LED with the LED in question. You replace your BIOS with a version of OpenBIOS that has been modified to display a green circle on the screen, and never boot any operating system. Total cost: probably the cost of a new PC.

But in all seriousness

I think I'd recommend an Arduino and Processing. They're simple and great for beginners. Total cost: $30 for the Arduino.

Best of luck.

When Inductors or capacitors are used in tuned LC tank circuits they tend to drift with temperature. It is not very precise for a high quality thermometer, so diodes tend to be used for high volume thermal sensors. THermal resistors or thermistors are still in use as well, which cover a much broader selection for various sensitivities.

For every application where temperature compensation is required such as for sensitive LC tuned filters or oscillators. Normally ceramic parts can be made with C0G material which are temperature stable or negative positive zero ppm/deg C aka NP0 often mis-labelled as NPO as in (n-p-oh) but was originally specified as NP Zero temp-coeff. There are many compensation values , but typically more negative ppm/deg C.. so you may find P300 to N1500 ceramic caps in the small standard value range for compensation.

Apart from magnetometers which use LC sensors or proximity sensors and using ceramic caps as vibration sensors, I have never heard of people using LC components for accurate thermal sensors.

Can you clarify what type of materials you boss was referring for temperature sensors? May I suggest re-phrasing the question.