Analog Inputs Sample

This sample demonstrates reading analog inputs.

To run the sample:

1. Download the sample code from https://github.com/Turta-io/RCDriverHAT/blob/master/Samples/Python/Analog_Inputs.py

2. Copy the sample code to a folder on the Raspberry Pi.

3. Open terminal, and then go to the folder you copied the sample.

4. Run the sample with the following command:

python3 Analog_Inputs.py

Sample Code

Analog_Inputs.py

#!/usr/bin/env python3

#This sample demonstrates reading analog inputs.
#Install RC Driver HAT library with "pip3 install turta-rcdriverhat"

from time import sleep
from turta_rcdriverhat import Turta_RCDriver

#Initialize
rc = Turta_RCDriver.RCDriver()

try:
    #Activate fan at 50% speed
    rc.set_fan(50)

    while True:
        #Option one: Read all analog inputs in one shot
        #Useful when you need all the readings within a minimal time
        an_all = rc.read_analogs()

        #Print the readings
        if an_all is not None:  #Check if data is received
            print("AN 1......: " + str(an_all[0]))
            print("AN 2......: " + str(an_all[1]))
            print("AN 3......: " + str(an_all[2]))
            print("AN 4......: " + str(an_all[3]))

        #Wait
        sleep(1.0)

        #Option two: Read analog inputs one by one
        #Useful when you need only one reading
        an_one = rc.read_analog(Turta_RCDriver.ANALOG_IN.CH_1)

        #Print the reading
        if an_one is not None:  #Check if data is received
            print("AN 1......: " + str(an_one))

        #Wait
        sleep(1.0)

#Exit on CTRL+C
except KeyboardInterrupt:
    print('Bye.')

Result

When you run the sample, it prints analog port inputs. If you haven't connected anything to the port, the program reads random numbers. The example output should be like this:

AN 1......: 123
AN 2......: 124
AN 3......: 123
AN 4......: 125
AN 1......: 123

To stop the Python script, just press CTRL + C.