I have a brand new DLight. I used the M5Stack example code but all I get is the max value of the sensor, even when I cover the sensor. I tried all 6 modes. I also searched the internet but couldn't find any solution. I added a counter to the example. Here is my code:

#include <M5Atom.h>
#include <M5_DLight.h>

M5_DLight sensor;
uint16_t lux;
uint16_t counter = 0;

void setup() {
    M5.begin(true, true, true);
    Serial.println("Sensor begin.....");
    sensor.begin();

    // CONTINUOUSLY_H_RESOLUTION_MODE
    // CONTINUOUSLY_H_RESOLUTION_MODE2
    // CONTINUOUSLY_L_RESOLUTION_MODE
    // ONE_TIME_H_RESOLUTION_MODE
    // ONE_TIME_H_RESOLUTION_MODE2
    // ONE_TIME_L_RESOLUTION_MODE
    sensor.setMode(CONTINUOUSLY_H_RESOLUTION_MODE);
}

void loop() {
    M5.dis.fillpix(0x00ff00);
    lux = sensor.getLUX();
    Serial.printf("lux: %d\n", lux);
    counter = counter + 1;
    Serial.printf("Counter: %d\n", counter);
    delay(200);
}

This is the only output I get:

Counter: 32
lux: 65535
Counter: 33
lux: 65535
Counter: 34
lux: 65535
Counter: 35
lux: 65535
Counter: 36
lux: 65535
Counter: 37

Does anyone have an idea what I'm doing wrong?

I have a brand new DLight. I used the M5Stack example code but all I get is the max value of the sensor, even when I cover the sensor. I tried all 6 modes. I also searched the internet but couldn't find any solution. I added a counter to the example. Here is my code:

#include <M5Atom.h>
#include <M5_DLight.h>

M5_DLight sensor;
uint16_t lux;
uint16_t counter = 0;

void setup() {
    M5.begin(true, true, true);
    Serial.println("Sensor begin.....");
    sensor.begin();

    // CONTINUOUSLY_H_RESOLUTION_MODE
    // CONTINUOUSLY_H_RESOLUTION_MODE2
    // CONTINUOUSLY_L_RESOLUTION_MODE
    // ONE_TIME_H_RESOLUTION_MODE
    // ONE_TIME_H_RESOLUTION_MODE2
    // ONE_TIME_L_RESOLUTION_MODE
    sensor.setMode(CONTINUOUSLY_H_RESOLUTION_MODE);
}

void loop() {
    M5.dis.fillpix(0x00ff00);
    lux = sensor.getLUX();
    Serial.printf("lux: %d\n", lux);
    counter = counter + 1;
    Serial.printf("Counter: %d\n", counter);
    delay(200);
}

This is the only output I get:

Counter: 32
lux: 65535
Counter: 33
lux: 65535
Counter: 34
lux: 65535
Counter: 35
lux: 65535
Counter: 36
lux: 65535
Counter: 37

Does anyone have an idea what I'm doing wrong?

@felmue Thank you! I learned something today by downloading the PDF's and applying what you explained :)

@felmue
Thanks! How did you see that in the schematic for the M5StickC Plus2?

I'm looking for a controller that accepts 5v through GROVE. This is to use it with a heat pump that sends 5v over the 5v line. I know the Atom S3 Lite does. I would be particularly interested in either the M5stickC Plus 2 and the Nano C6. Now I have some basic knowledge of schematics but I can't decide wether these can be powered over GROVE. I looked up all schematics.

Atom S3 Lite schematics
M5StickC Plus2 schematics
Nano C6 schematics

I can't read the schematics well enough to decide wether the Stick and Nano can be powered over GROVE. If I look at the Atom S3 Lite schematics I see the GROVE port is wired differently. But that's all I can conclude. It would be great if anyone could help me in wether the Stick and Nano are fit for my purpose and how you came to that conclusion so I can learn from it. Thanks!