Trying to get Vext control working ABO2S

#1

Hi everyone, for some reason the following sketch doesn’t switch the vext control. It always maintains 3.3v…any ideas?

#include “Arduino.h”
#include “LoRaWan_APP.h”

void setup() {
// put your setup code here, to run once:
Serial.begin(115200);
pinMode(Vext,OUTPUT);
}

void loop() {
// put your main code here, to run repeatedly:
digitalWrite(Vext,LOW);
Serial.println(“vext ON”);
delay(5000);
digitalWrite(Vext,HIGH);
Serial.println(“vext OFF”);
delay(5000);
}

#2

Seem the ” does not work, please replace them with "

Please make sure the compiling is Done and uploaded to the board.

#include “LoRaWan_APP.h”
#include “Arduino.h”
void setup() {
// put your setup code here, to run once:
Serial.begin(115200);
pinMode(Vext,OUTPUT);
}

void loop() {
// put your main code here, to run repeatedly:
digitalWrite(Vext,LOW);
Serial.println(“Vext ON”);
delay(5000);
digitalWrite(Vext,HIGH);
Serial.println(“Vext OFF”);
delay(5000);
}

#3

No, that’s not the problem, it seems to be a faulty board, I have tested the same code on another ABO2S, works perfectly, and also tested it on the dev board, perfect.
The voltage on the faulty one at vext control goes from .3v to around .9v, wheras on the working boards it goes from 0v to 3.3v.
I’m thinking I’m going to need to get this replaced and I need to check the other purchased boards to make sure it’s the only one.