Temperature-Sensor

TemperatureSensor is a VHDL program that simulates a temperature sensor. It provides real-time temperature readings in an 8-bit representation. The program utilizes a clock signal for synchronization and a reset signal for initialization. The temperature readings are simulated using a customizable logic within the simulateTemperature() function. The temperature values range between 20 and 30 degrees Celsius with a variation of -5 to +5 degrees. The code follows VHDL best practices, ensuring efficiency and accuracy in temperature simulation.

Usage

• Instantiate the Temperature Sensor entity in your VHDL design.
• Connect the clock signal (clk) and reset signal (reset) to appropriate sources.
• Connect the output signal (temperature) to the desired destination for temperature readings.

Customization

To customize the temperature simulation, modify the simulateTemperature() function. You can implement your own logic or algorithm to generate simulated temperature values based on your requirements.

library ieee;
use ieee.std_logic_1164.all;
use ieee.numeric_std.all;

entity TemperatureSensor is
  port (
    clk         : in  std_logic;
    reset       : in  std_logic;
    temperature : out std_logic_vector(7 downto 0)
  );
end TemperatureSensor;

architecture Behavioral of TemperatureSensor is
  signal temperature_reg : std_logic_vector(7 downto 0);
begin
  process(clk)
  begin
    if rising_edge(clk) then
      if reset = '1' then
        temperature_reg <= (others => '0');  -- Initialize temperature to zero
      else
        -- Simulation of temperature reading
        temperature_reg <= std_logic_vector(to_unsigned(simulateTemperature(), 8));
      end if;
    end if;
  end process;

  temperature <= temperature_reg;
end Behavioral;

-- Function for temperature simulation
function simulateTemperature return natural is
  variable temp : natural := 25;  -- Initial simulation temperature
begin
  -- Simulation code for generating temperature values
  -- Customize this function to implement your desired temperature simulation logic

  -- Example: Simulating random temperature between 20 and 30 degrees Celsius
  temp := temp + natural(random_number(10) - 5);  -- Random variation between -5 and +5 degrees
  if temp < 20 then
    temp := 20;
  elsif temp > 30 then
    temp := 30;
  end if;

  return temp;
end simulateTemperature;

Example

-- Instantiate TemperatureSensor
signal clk, reset : std_logic;
signal temperature : std_logic_vector(7 downto 0);

TemperatureSensor_inst : entity work.TemperatureSensor
  port map (
    clk => clk,
    reset => reset,
    temperature => temperature
  );

Note

This program generates pseudo-random temperature values for simulation purposes and may not reflect actual temperature readings. For real-world temperature sensing, external hardware or sensors should be used.