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node_mcu_example.rst

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NodeMCU & MicroPython APDS-9960 example

Usage Example

import machine
from time import sleep_ms
from uPy_APDS9960.apds9960LITE import APDS9960LITE

#Init I2C Buss
i2c =  machine.I2C(scl=machine.Pin(5), sda=machine.Pin(4))

apds9960=APDS9960LITE(i2c)      # Enable sensor
apds9960.prox.enableSensor()    # Enable Proximit sensing

while True:
        sleep_ms(25) # wait for readout to be ready
        print(apds9960.prox.proximityLevel)   #Print the proximity value

Hardware Set-up

Connect Vin to 3.3 V or 5 V power source, GND to ground, SCL and SDA to the appropriate pins to the NooeMCU Devboard

APDS9960 Name Remarks NodeMcu Pin Function
1 VIN +3.3V Power 3V3 +3.3V Power
2 GND Ground GND GND
3 SCL I2C clock D1 GPIO 5 (SCL)
4 SDA I2C Data D2 GPIO 4 (SDA)
5 INT Interrupt D3 GPIO 0

Basics

Of course, you must import the device and library :)

import machine
from uPy_APDS9960.apds9960LITE import APDS9960LITE

To set-up the device to gather data, initialize the I2C-device using SCL and SDA pins. Then initialize the library.

i2c =  machine.I2C(scl=machine.Pin(5), sda=machine.Pin(4))
apds9960=APDS9960LITE(i2c)         # Poweron APDS9960

Proximity

Proximity funxtionalites is accessed torough the apds9960.prox member :class:`.PROX`

apds9960.prox.enableSensor()         # Enable Proximity sensing
sleep_ms(25)                         # wait for readout to be ready
print(apds9960.prox.proximityLevel)  # Print the proximity value

Light Sensing

Proximity funxtionalites is accessed torough the apds9960.als member :class:`.ALS`

apds9960.als.enableSensor()           # Enable Light sensor
sleep_ms(25)                          # Wait for readout to be ready
print(apds9960.als.ambientLightLevel) # Print the ambient light value