---
title: "EC-M11-EG-C4-S – DATASHEET"
description: "## **Product Features** ![](https://norvi.io/wp-content/uploads/2024/09/EC-M11-EG-C4-S_-Summary-Image-2-1024x789-2.jpg) - ESP32-WROOM32 Module - Thermocouple Input **Communication** - LoRaWAN Communication ![](https://norvi.io/wp-content/uploads/2024/09/DSC_5691-782x1024-18.png) ## **Main** | Range of Product | NORVI EC M11 | | --- | --- | | Product Type | Programmable Node | | Certifications…"
url: "https://norvi.io/docs/norvi-ec-m11-eg-c4-s-datasheet/"
updated: "2026-03-24"
category: "OTHER PRODUCTS / EC-M11-EG LoRa / EC-M11-EG-C4-S"
---

# EC-M11-EG-C4-S – DATASHEET

## **Product Features**

![](https://norvi.io/wp-content/uploads/2024/09/EC-M11-EG-C4-S_-Summary-Image-2-1024x789-2.jpg)

- ESP32-WROOM32 Module
- Thermocouple Input

**Communication**

- LoRaWAN Communication

![](https://norvi.io/wp-content/uploads/2024/09/DSC_5691-782x1024-18.png)

## **Main**

| Range of Product | NORVI EC M11 |
| --- | --- |
| Product Type | Programmable Node |
| Certifications | EN 61131-2:2007 EN 61010-1:2010+A1:2019 EN IEC 61010-2-201:2018 2014/30/EU- Electromagnetic Compatibility (EMC) Annex III, Part B, Module C  |
| Rated supply voltage | 24V DC |
| Communication | WiFI / Bluetooth   LoRaWAN Communication |
| Inputs and Outputs | 1 x Thermocouple Input |
| Displays and Visual Indicators | Green and Red LED |

## **Complementary**

| Product Unified Code | NORVI EC-M11-EG-C4-S |
| --- | --- |
| Product Part Numbers  | NORVI EC-M11-EG-C4-S |

## **Mechanical Properties**

| Enclosure | WP8-10-4G |
| --- | --- |
| Mounting / Installation Method | Wall mount Electrical Pole mount - accessory required |
| Terminal Type | 8 Position Molding Cable / AWG24 / Length 2 meters |
| Terminal Arrangement | Color-Coded Tinned Wires |
| Depth | 35 mm |
| Height | 100 mm |
| Width | 75 mm |

![](https://norvi.io/wp-content/uploads/2024/09/unnamed-41.png)

## **Environment**

| IP degree of protection  | IP20 |
| --- | --- |
| Operating altitude  | 0 - 2000 meters |
| Operating Temperature  | - –10 … +85° C |
| Storage altitude  | 0 - 3000 meters |
| Shock resistance  | 15 gn for 11ms |
| Resistance to electrostatic discharge  | 4kV on contact 8kV on air |
| Resistance to electromagnetic fields  | 10 V/m (80 MHz ...... 1GHz)  3 V/m (1.4 MHz ...... 2 GHz)  1 V/m (2 MHz ...... 3 GHz) |

## **Electrical Characteristics**

### *Grid Powered Devices*

| Rated Supply Voltage (V) |   24V DC |
| --- | --- |
| Current Consumption (mA) |   400mA |
| Recommended Power Source |   1W 24V DC |

## **Processing**

| SOC / MCU | ESP32-WROOM32 |
| --- | --- |
| Flash Memory | 4MB |
| ROM | 448 KB |
| SRAM | 520 KB |
| PSRAM | NOT AVAILABLE |

## **INPUTS and OUTPUTS**

### **Thermocouple  Inputs**

| Thermocouple Type | MAX31855 |
| --- | --- |
| Resolution | 14-Bit, 0.25° C |
| Versions Available  | K, J, N, T, or E type |
| Supply Voltage Range | -0.3V to +4.0V |
| Junction Temperature | 150° C |
| Continuous Power Dissipation  | 470.6mW |
| SPI MISO | GPIO19 |
| SPI SCK | GPIO18 |
| CS | GPIO5 |

### **Thermocouple Wire Connections and Nominal Sensitivities**

| **TYPE** | **T- WIRE** | **T+ WIRE** | **TEMP RANGE (°C)** | **SENSITIVITY ** | **COLD-JUNCION SENSITIVITY** |
| --- | --- | --- | --- | --- | --- |
| **K** | Alumel | Chromel | -200 to +1350 | 41.276(0° C to +1000° C) | 40.73 |
| **J** | Constantan | Iron | -40 to +750 | 57.953 (0° C to +750° C) | 52.136 |
| **N** | Nisil | Nicrosil | -200 to + 1300 | 36.256(0° C to +1000° C) | 27.171 |
| **S** | Platinum/Rhodium | Platinum | +50 to +1600 | 9.587(0° C to +1000° C) | 6.181 |
| **T** | Constantan | Copper | -250 to +400 | 52.18(0° C to +400° C) | 41.56 |
| **E** | Constantan | Chromel | -40 to +900 | 76.373(0° C to +1000° C) | 44.123 |
| **R** | Platinum/Rhodium | Platinum | -50 to +1770 | 10.506(0° C to +1000° C) | 6.158 |

## **8 Pin Connector and wire harness**

![](https://norvi.io/wp-content/uploads/2024/09/345-36.jpg)

## **Pin Description**

| **8P Male** | **Wire colour** | **I/O Configuration** |
| --- | --- | --- |
| 1 | White | Thermocouple + |
| 2 | Brown | Thermocouple - |
| 3 | Green | - |
| 4 | Yellow | - |
| 5 | Gray | - |
| 6 | Pink | - |
| 7 | Blue | Power+ |
| 8 | Red | Power- |

## **LoRaWAN**

| 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 |
| RESET | GPIO15 |

## **GPIO Map**

| **GPIO** | **Description** | **Usage** |
| --- | --- | --- |
| 0 | outputs PWM signal at boot | NRST |
| 1 | USB to UART | TX0 |
| 2 |  |  |
| 3 | USB to UART | RX0 |
| 4 |  |  |
| 5 | Thermocouple Input | CS |
| 12 | boot fails if pulled high |  |
| 13 |  |  |
| 14 | outputs PWM signal at boot |  |
| 15 | LoRa  | RESET |
| 16 |  |  |
| 18 | Thermocouple Input/LoRa | SPI SCLK |
| 19 | Thermocouple Input/LoRa | SPI MISO |
| 23 | LoRa  | SPI MOSI |
| 25 | LoRa  | DIO0 |
| 26 | LoRa  | NSS |
| 27 | LoRa  | DIO1 |
| 33 |  |  |
| 35 |  |  |
| 36 |  |  |