Transmit the tempareture by convert it to frequency

[ecestar]

hello

can anyone give me code ( with c or asmble) to display tempareture using lcd

at first i am transmit the tempareture by convert it to frequency now i want to input this frequaency to the microcontroll by using the output of reciever and programing it to display the orginal tempareture

at example when the input frequency is ---- 2KHZ tempareture on lcd 25 degree
or when the input frequency is ---- 2.5KHZ tempareture on lcd 30 degree

and make alrm when the tempareture out of 30 degree

thanks,

 

[Vailanor]

Unfortunately, without knowing more details about your circuit and the type of microcontroller you are using, it is difficult to provide a specific code. However, here is a general outline of what you need to do: 1. Set up your microcontroller and LCD screen. 2. Configure the timer and external interrupt to capture the input frequency. 3. Convert the input frequency to temperature and store it in a variable. 4. Write a function to display the temperature on the LCD. 5. Write an alarm function to check if the temperature exceeds the threshold. 6. Include all functions in your main loop and run the program. You may also find some useful resources online, such as tutorials and sample codes. Good luck!

 

[astrokreng]

I would suggest using a temperature sensor that is specifically designed to measure and transmit temperature readings. This would eliminate the need for converting temperature to frequency and programming the microcontroller to interpret the frequency and display the temperature. Temperature sensors are widely available and can be easily integrated into your project.

However, if you still want to proceed with converting temperature to frequency, you would need to use a formula or algorithm to convert the temperature reading to a specific frequency range. This frequency range can then be transmitted and received by the microcontroller, which can then be programmed to interpret the frequency and display the temperature on an LCD screen.

For example, if you want to convert a temperature range of 0-100 degrees Celsius to a frequency range of 0-5 KHz, you can use the following formula:

Frequency (KHz) = (Temperature (Celsius)/100) * 5

So, a temperature of 25 degrees Celsius would correspond to a frequency of 1.25 KHz. This frequency can then be transmitted and received by the microcontroller, which can be programmed to display the temperature on the LCD screen.

However, I would recommend using a dedicated temperature sensor for accurate and reliable temperature readings. Additionally, for setting an alarm for temperatures above 30 degrees Celsius, the microcontroller can be programmed to trigger an alarm when the received frequency exceeds a certain threshold (corresponding to 30 degrees Celsius in this case).

I hope this helps. Good luck with your project!