---
title: "EC-M11-EG-C5-S – USER GUIDE"
description: "## Programming  The NORVI EC-M11-EG-C5-S 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 Based Controllers with Arduino…"
url: "https://norvi.io/docs/norvi-ec-m11-eg-c5-s-user-guide/"
updated: "2026-03-20"
category: "OTHER PRODUCTS / EC-M11-EG LoRa / EC-M11-EG-C5-S"
---

# EC-M11-EG-C5-S – USER GUIDE

## Programming 

The NORVI EC-M11-EG-C5-S 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 Based Controllers with Arduino IDE.

**SoC:** ESP32-WROOM32
**Programming Port:** USB UART

## 8-pin Connector and wire harness

![](https://norvi.io/wp-content/uploads/2024/09/345-7.jpg)

## Pin Description

| 8P Male | Wire color | I/O Configuration |
| --- | --- | --- |
| 1 | White | SCL |
| 2 | Brown | SDA |
| 3 | Green | - |
| 4 | Yellow | - |
| 5 | Gray | 3.3V+ / 5V+ |
| 6 | Pink | - |
| 7 | Blue | Power+ |
| 8 | Red | Power- |

## **I2C Communication**

| IC Type | ADS 1115 |
| --- | --- |
| Module Address | 0x49 |
| SDA | GPIO16 |
| SCL | GPIO17 |

### ****Programming I2C Communication****

```cpp

                #include <Wire.h>
// Define the I2C device address
#define DEVICE_ADDRESS 0x49

void setup() {
  Wire.begin(16, 17);  // SDA on GPIO16, SCL on GPIO17
  Serial.begin(115200);
}

void loop() {
  // Write data to the I2C device
  Wire.beginTransmission(DEVICE_ADDRESS);
  Wire.write(0x01);  // Replace with your data
  Wire.write(0x02);
  Wire.write(0x03);
  Wire.endTransmission();
  delay(100);
  // Read data from the I2C device
  Wire.requestFrom(DEVICE_ADDRESS, 3);  // 3 bytes of data
  if (Wire.available() >= 3) {
    byte data1 = Wire.read();
    byte data2 = Wire.read();
    byte data3 = Wire.read();
    Serial.print("Read Data: ");
    Serial.print(data1, HEX);
    Serial.print(" ");
    Serial.print(data2, HEX);
    Serial.print(" ");
    Serial.println(data3, HEX);
  }
  delay(1000);  // Delay for demonstration purposes
}
```

## **LoRa Transceiver Module**

| Specification | Long Range(LoRa) |
| --- | --- |
| RF Transceiver | Order depending on regional regulations |
| SPI MISO | GPIO19 |
| SPI MOSI | GPIO23 |
| SPI SCK | GPIO18 |
| NSS | GPIO26 |
| DIO0 | GPIO25 |
| DIO1 | GPIO27 |
| DIO2 | NOT CONNECTED |
| RESET | GPIO15 |

### **Programming LoRa Modules**

```cpp

                #include <lmic.h>
#include <hal/hal.h>
#include <SPI.h>
#define CONFIRMED_MSG_RETRY_COUNT 3
static const u1_t PROGMEM APPEUI[8] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
void os_getArtEui (u1_t* buf) {
  memcpy_P(buf, APPEUI, 8);
}
static const u1_t PROGMEM DEVEUI[8] = {0x4B, 0x11, 0x3F, 0xB1, 0x3C, 0xBE, 0xD6, 0x56};
void os_getDevEui (u1_t* buf) {
  memcpy_P(buf, DEVEUI, 8);
}
static const u1_t PROGMEM APPKEY[16] = {0xF9, 0x65, 0xE4, 0xED, 0xFF, 0x8A, 0x89, 0x27, 0x23, 0xA6, 0xB7, 0x42, 0x2F, 0x05, 0x8E, 0x9F};
void os_getDevKey (u1_t* buf) {
  memcpy_P(buf, APPKEY, 16);
}
static uint8_t mydata[] = "Hello, world!";
static osjob_t sendjob;
const unsigned TX_INTERVAL = 60;
const lmic_pinmap lmic_pins = {
  .nss = 26,
  .rxtx = LMIC_UNUSED_PIN,
  .rst = 15,
  .dio = {25, 27, -1},
};
void printHex2(unsigned v) {
  v &= 0xff;
  if (v < 16)
    Serial.print('0');
  Serial.print(v, HEX);
}
```