SOLVED : SI7021 T/H Powerdrain NRF52

[Omemanti]

Hey,

I got a question, I've built a PCB with a PIR-motion detector and a SI7021 temp/Hum sensor.

It all works great except for the power usage when the sensor is asleep.

Two scenarios happen, that I can't quite explain, but hopefully someone here can.

1. The power consumption is under the 0.01 when I only use the PIR sensor.
2. When I include sensor.begin(); the sleeping current jumps to 0.46 mA.

When I comment the "sensor.begin();" out it returns to 0.01mA.

schematic etc: https://www.openhardware.io/view/617/NRF52-Wall-Node-3-AAA

-- Might it be that is has something to do with it using a NRF52?

#define MY_DEBUG

#define MY_RADIO_NRF5_ESB
#define MY_NODE_ID 214

#include <MySensors.h>

#define SKETCH_NAME "PIR TESTING"
#define SKETCH_VERSION "v0.1"

int PIRLED = 29;
int ActLED = 6;
int PIR_pin = 2;

int a;
int b;

#include <Wire.h>
#include <SI7021.h>

SI7021 sensor;


void setup() {
  Serial.begin(115200);
  sensor.begin();

  pinMode(PIRLED, OUTPUT);
  pinMode(ActLED, OUTPUT);      
  pinMode(PIR_pin, INPUT);        
}

void loop() {
sleep(5000);
a = digitalRead(PIR_pin);
Serial.println(a);
delay(500);
  
}```

[Omemanti]

https://forum.mysensors.org/topic/6961/nrf5-action/1659

That fixed it.