NORVI AGENT 1-BM02-ES-L – USER GUIDE

Programming  #

The NORVI AGENT 1-BM02-ES-L has a mini USB port for serial connection with the SoC for programming. Any ESP32-supported programming IDE can be used to program the controller. Follow this Guide to programming NORVI ESP32-based controllers with the Arduino IDE.

SoC: ESP32-WROVER-B           
Programming Port: USB UART

Digital Inputs  #

Wiring Digital Inputs #

The digital inputs of NORVI AGENT 1-BM02-ES-L can be configured as both sink and source connections. The inverse of the Digital Input polarity should be supplied to the common terminal.

Programming Digital Inputs  #

Reading the relevant GPIO of the ESP32 gives the value of the Digital Input. When the inputs are in the OFF state, the GPIO goes HIGH, and when the input is in the ON state, the GPIO goes LOW. Refer to the GPIO allocation table in the datasheet for the digital input GPIO.

#define INPUT1 27 

void setup() { 
   Serial.begin(115200); 
   Serial.println("Device Starting"); 
   pinMode(INPUT1, INPUT); 
} 

void loop() { 
   Serial.print(digitalRead(INPUT1));
   Serial.println(""); 
   delay(500); 
}

4 – 20 mA Analog Input #

Wiring Analog Inputs  #

Reading Analog Input #

Reading the relevant I2C address of the ADC gives the value of the Analog Input.

Programming Analog Inputs  #

#include <Adafruit_ADS1X15.h> 
#include <Wire.h> 
Adafruit_ADS1115 ads1; 

void setup() { 
   Serial.begin(115200); 
   Serial.println("Device Starting"); 
   Wire.begin(21,22); 
   ads1.begin(0x48); 
   ads1.setGain(GAIN_ONE); 
} 

void loop() { 
  Serial.print("Analog 0 ");
  Serial.println(ads1.readADC_SingleEnded(0));
  delay(10); 
  Serial.print("Analog 1 ");
  Serial.println(ads1.readADC_SingleEnded(1));
  delay(10); 
  Serial.print("Analog 2 ");
  Serial.println(ads1.readADC_SingleEnded(2));
  delay(10); 
  Serial.println(""); 
  delay(500); 
}

RS-485 Communication #

Programming RS-485 #

The RS-485 connection of the NORVI AGENT 1-BM series uses

#define RXD 23
#define TXD 13
#define FC 32 

void setup() {
  Serial.begin(9600);
  pinMode(FC, OUTPUT); 
  Serial1.begin(9600, SERIAL_8N1,RXD,TXD); 
}

void loop() { 
  digitalWrite(FC, HIGH); // Make FLOW CONTROL pin HIGH
  Serial1.println("RS485 01 SUCCESS"); // Send RS485 SUCCESS serially
  delay(500); // Wait for transmission of data
  digitalWrite(FC, LOW); // Receiving mode ON 

  while (Serial1.available()) { // Check if data is available
    char c = Serial1.read(); // Read data from RS485
    Serial.write(c); // Print data on serial monitor
  }
  delay(1000);
}

Built-in Buttons #

Programming Buttons #

#define buttonPin 35
int  buttonState = 0;

void setup() {
  Serial.begin(9600);                             
  pinMode(buttonPin,INPUT);
}

void loop() { 
  Serial.print("Button: ");
  buttonState = analogRead(buttonPin);
  delay(50);
  Serial.print(analogRead(buttonPin));
  Serial.print("\tAnalog: ");
  delay(1000);
}

LoRaWAN #

USB and Reset #