Sensor VL6180 mit Micropython auf Pico2040/ ESP32? Schau mal ob du hier fündig wirst!
I2C in der raspi-config aktiviert ?
Richtig angeschlossen ?
I2C in der raspi-config aktiviert ?
Lies #1 doch bitte noch einmal
Sorry , hatte das kleine pico echt übersehen !
Pico ist ja auch echt klein. 😉
Hallo,
ist dass das nachprogrammiert?
Dort steht als Kommentar eine I²C - Beispiel-Konfiguration, eventuell passt die Standard-Baudrate nicht.
Es wäre schön, wenn du in Zukunft den Code hier direkt im Forum postest, dazu einfach im Editor "Code-Block" auswählen. Dann kann man den Code auch unterwegs anschauen.
Grüße
Dennis
Hallo,
ist dass das nachprogrammiert?
Mit dieser Lib gehts auch nicht, auch wenn ich die Pinbelegung anpasse. Baudrate muss ich mal testen ...
Die Lib (hab verschiedene getestet) sollte auch von der Adresse des I2C passen. Ein Test sagt:
MPY: soft reboot
Scan I2C Bus...
I2C-Geräte gefunden: 1
Dezimale Adresse: 41 | Hexadezimale Adresse: 0x29
Baudrate muss ich mal testen ...
Und was änderte sich?
Kleine Anmerkung: Mit dem Arduino Uno habe ich den Sensor zum Laufen gebracht, defekt ist er also nicht 
Und hier DIE Lösung für ESP32(C3) und RP2040 Pico
# Lasersensor VL6180x an RP2040/ ESP32 ohne ext. Library
# by de-coder
import time
from machine import Pin, I2C
i2c = I2C(0, scl=Pin(9), sda=Pin(8)) # SCL=GPIO9, SDA=GPIO8
class VL6180X:
def __init__(self, i2c, address=0x29):
self.i2c = i2c
self._address = address
self.default_settings()
self.init()
def myWrite16(self, register, regValue):
""" write a byte to specified 16 bit register """
return self.i2c.writeto_mem(self._address, register, bytearray([regValue]), addrsize=16), 'big'
def myRead16(self, register):
"""read 1 bit from 16 byte register"""
# i2c.readfrom_mem(0x29, 0x0016, 1, addrsize=16)
value = int.from_bytes(
self.i2c.readfrom_mem(self._address, register, 1, addrsize=16),
'big'
)
return value & 0xFFFF
def init(self):
if self.myRead16(0x0016) != 1:
raise RuntimeError("Failure reset")
# Recommended setup from the datasheet
self.myWrite16(0x0207, 0x01)
self.myWrite16(0x0208, 0x01)
self.myWrite16(0x0096, 0x00)
self.myWrite16(0x0097, 0xfd)
self.myWrite16(0x00e3, 0x00)
self.myWrite16(0x00e4, 0x04)
self.myWrite16(0x00e5, 0x02)
self.myWrite16(0x00e6, 0x01)
self.myWrite16(0x00e7, 0x03)
self.myWrite16(0x00f5, 0x02)
self.myWrite16(0x00d9, 0x05)
self.myWrite16(0x00db, 0xce)
self.myWrite16(0x00dc, 0x03)
self.myWrite16(0x00dd, 0xf8)
self.myWrite16(0x009f, 0x00)
self.myWrite16(0x00a3, 0x3c)
self.myWrite16(0x00b7, 0x00)
self.myWrite16(0x00bb, 0x3c)
self.myWrite16(0x00b2, 0x09)
self.myWrite16(0x00ca, 0x09)
self.myWrite16(0x0198, 0x01)
self.myWrite16(0x01b0, 0x17)
self.myWrite16(0x01ad, 0x00)
self.myWrite16(0x00ff, 0x05)
self.myWrite16(0x0100, 0x05)
self.myWrite16(0x0199, 0x05)
self.myWrite16(0x01a6, 0x1b)
self.myWrite16(0x01ac, 0x3e)
self.myWrite16(0x01a7, 0x1f)
self.myWrite16(0x0030, 0x00)
# writeReg System__Fresh_OUT_OF_Reset
# self.myWrite16(0x0016, 0x00),
def default_settings(self):
# Enables polling for ‘New Sample ready’ when measurement completes
self.myWrite16(0x0011, 0x10)
self.myWrite16(0x010A, 0x30) # Set Avg sample period
self.myWrite16(0x003f, 0x46) # Set the ALS gain
self.myWrite16(0x0031, 0xFF) # Set auto calibration period
# (Max = 255)/(OFF = 0)
self.myWrite16(0x0040, 0x63) # Set ALS integration time to 100ms
# perform a single temperature calibration
self.myWrite16(0x002E, 0x01)
# Optional settings from datasheet
self.myWrite16(0x001B, 0x09) # Set default ranging inter-measurement
# period to 100ms
self.myWrite16(0x003E, 0x0A) # Set default ALS inter-measurement
# period to 100ms
self.myWrite16(0x0014, 0x24) # Configures interrupt on ‘New Sample
# Ready threshold event’
# Additional settings defaults from community
self.myWrite16(0x001C, 0x32) # Max convergence time
self.myWrite16(0x002D, 0x10 | 0x01) # Range check enables
self.myWrite16(0x0022, 0x7B) # Eraly coinvergence estimate
self.myWrite16(0x0120, 0x01) # Firmware result scaler
def identify(self):
"""Retrieve identification information of the sensor."""
return {
'model': self.myRead16(0x0000),
'revision': (self.myRead16(0x0001), self.myRead16(0x0002)),
'module_revision': (self.myRead16(0x0003),
self.myRead16(0x0004)),
'date': self.myRead16(0x006),
'time': self.myRead16(0x008),
}
def address(self, address=None):
"""Change the I2C address of the sensor."""
if address is None:
return self._address
if not 8 <= address <= 127:
raise ValueError("Wrong address")
self._set_reg8(0x0212, address)
self._address = address
def range(self):
"""Measure the distance in millimeters. Takes 0.01s."""
self.myWrite16(0x0018, 0x01) # Sysrange start
time.sleep(0.01)
return self.myRead16(0x0062) # Result range valueimport ustruct
# I²C-Schnittstelle initialisieren
i2c = I2C(0, scl=Pin(9), sda=Pin(8)) # SCL=GPIO9, SDA=GPIO8
# VL6180X-Sensor initialisieren
sensor = VL6180X(i2c)
while True:
distance = sensor.range() # Abstand in Millimetern
print(f"Entfernung: {distance} mm")
time.sleep(0.5) # Pause zwischen den MessungenDon’t have an account yet? Register yourself now and be a part of our community!