Guru
Joined: 18/10/2016
Location: AustraliaPosts: 905
| Posted: 01:03am 30 Dec 2021 |
Hello all,
I am trying to use my VL53L1X laser distance sensor on a Pi Pico.
As mentioned (here) I can get it working with Python (supplied with the sensor) but I can't see how to port the Python code to MMBasic (that would be my preference). If anyone is interested I can post the Py code, datasheet etc? (please . . . ?).
A second way I have tried is to modify the Py code to output the data to an HC12 (I am reasonably familiar with them). I have copied Lew247's code where he does the same thing.
But I get an error.
This is my code snippet:
from PiicoDev_VL53L1X import PiicoDev_VL53L1X
from time import sleep
import serial
ser = serial.Serial(
port='/dev/ttyAMA0',
baudrate = 9600,
parity=serial.PARITY_NONE,
stopbits=serial.STOPBITS_ONE,
bytesize=serial.EIGHTBITS,
timeout=1
)
distSensor = PiicoDev_VL53L1X()
while True:
dist = distSensor.read() # read the distance in millimetres
print(str(dist) + " mm") # convert the number to a string and print
sleep(1)
from time import sleep
import serial
ser = serial.Serial(
port='/dev/ttyAMA0',
baudrate = 9600,
parity=serial.PARITY_NONE,
stopbits=serial.STOPBITS_ONE,
bytesize=serial.EIGHTBITS,
timeout=1
)
distSensor = PiicoDev_VL53L1X()
while True:
dist = distSensor.read() # read the distance in millimetres
print(str(dist) + " mm") # convert the number to a string and print
sleep(1)
and the error I get:
>>> %Run -c $EDITOR_CONTENT
Traceback (most recent call last):
File "<stdin>", line 4, in <module>
ImportError: no module named 'serial'
>>>
My intention is that when I can successfully open the port and test it, I'll insert code in the while loop to write to the port.
Some questions:
- is there a subroutine or library that I need to load for serial (if so where is it and how do I load it?)
- how does one write to the port (its not as simple as PRINT #1, "Hello World" is it?)
- how does one specify which Com port on the Pico to use? (I'm happy with Com1 on GP0 and GP1 but can use another).
Many thanks,
Andrew