---
title: "NORVI GSM-AE08-I-G – DATASHEET"
description: "## **Product Features** ![](https://norvi.io/wp-content/uploads/2024/09/NORVI-GSM-AE08-I-G_Summary-Image-1024x856-1.jpg) - ESP32-WROOM32 Module - GSM Connection - Built-in 0.96 OLED Display - microSD Card Support - DS3231 RTC with Battery Backup - Ethernet via W5500 - Built-in Button on the front panel - Digital Inputs -…"
url: "https://norvi.io/docs/norvi-gsm-ae08-i-g-datasheet/"
updated: "2026-03-31"
category: "NORVI GSM / NORVI GSM 2G / NORVI GSM-AE08-I-G"
---

# NORVI GSM-AE08-I-G – DATASHEET

## **Product Features**

![](https://norvi.io/wp-content/uploads/2024/09/NORVI-GSM-AE08-I-G_Summary-Image-1024x856-1.jpg)

- ESP32-WROOM32 Module
- GSM Connection
- Built-in 0.96 OLED Display
- microSD Card Support
- DS3231 RTC with Battery Backup
- Ethernet via W5500
- Built-in Button on the front panel
- Digital Inputs
- Analog Inputs
- DIN-Rail mount

**Cellular Communication**

- Module: SIM800-C
- Brand Name: SIMCom
- FCC ID: UDU-SIM800C
- TAC: 86610402

**Expansions Supported**

- Analog Input
- Digital Input

## **Main**

| Range of Product | NORVI GSM |
| --- | --- |
| Product type | Programmable Controller |
| Certifications | EN 61131-2:2007 EN 61010-1:2010+A1:2019 EN IEC 61010-2-201:2018 2014/30/EU- Electromagnetic Compability (EMC)  Annex III, Part B, Module C |
| Rated supply voltage | 24V DC |
| Communication | WiFI / Bluetooth GSM / GPRS - SIMCOM SIM800C RS485 |
| Inputs and Outputs | 5 x Digital Inputs 4 x Analog Inputs with 4-20mA |
| Displays and Visual Indicators | 0.96 OLED Display and Indicators |

## **Complementary**

| Product Unified Code | NORVI GSM-AE08-I-G |
| --- | --- |
| Product Part Numbers  | NORVI GSM-AE08-I-G |

## **Mechanical Properties**

| Enclosure | NORVI 204  |
| --- | --- |
| Mounting / Installation Method | DIN RAIL / MOUNTING TABS |
| Terminal Type | SCREW TERMINAL |
| Terminal Arrangement | Top and Bottom |
| Length | 90.50 mm |
| Height | 56.60 mm |
| Width | 60.60 mm |

![](https://norvi.io/wp-content/uploads/2024/09/measurment-1024x928-1.jpg)

## **Environment**

| IP degree of protection  | IP20 |
| --- | --- |
| Operating altitude  | 0–2000 meters |
| Operating Temperature  | - -10... +85° C (14...185 °F) |
| Storage altitude  | 0–3000 meters |
| Shock resistance  | 15 gn for 11ms |
| Resistance to electrostatic discharge  | 4 kV on contact 8 kV 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 | 1A, 24V DC |

## **Processing**

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

## **Indicator Layout**

![](https://norvi.io/wp-content/uploads/2024/09/AE08-GSM-VI-INDICATORS-1024x1016-1.jpg)

## **Peripherals**

#### **microSD Card support**

| Card Type | microSD |
| --- | --- |
| Interface | SPI |
| SD CARD CS | GPIO15 |
| MISO | GPIO19 |
| MOSI | GPIO23 |
| SCLK | GPIO18 |
| SD Detect | NOT CONNECTED |

#### **Internal RTC**

| RTC Chip | DS3231 |
| --- | --- |
| Backup Battery Type | CR2032 |
| Interface | I2C |
| I2C Address | 0x68  |
| SCL Pin | GPIO17 |
| SDA Pin | GPIO18 |

#### **Built-in Buttons**

| Button 1 Pin | GPIO36 Analog Input Level 1 |
| --- | --- |
| Button 2 Pin | GPIO36 Analog Input Level 2 |
| Button 3 Pin | GPIO36 Analog Input Level 3 |

#### **OLED Display**

| Display Driver | SSD1306 |
| --- | --- |
| Display Size | 0.96 inch |
| SCL Pin | GPIO17 |
| SDA Pin | GPIO16 |
| RESET Pin | NOT CONNECTED |

## **INPUTS and OUTPUTS**

#### **Digital Inputs**

| Number of Digital Inputs | 5 |
| --- | --- |
| Digital Input Polarity | Sink and Source |
| Digital Input Maximum Voltage | 32V DC  |
| Digital Input Minimum Voltage | 18V DC  |
| Maximum Switching Frequency | 1 kHZ |
| Terminal Arrangement | Digital Input 1 - GPIO34 Digital Input 2 - GPIO35 Digital Input 3 - GPIO14 Digital Input 4 - GPIO13 Digital Input 5 - GPIO4 ![](https://norvi.io/wp-content/uploads/2024/09/unnamed-7.jpg) |

#### **Analog Inputs**

| Number of Analog Inputs | 4 |
| --- | --- |
| Analog Input Measurement Range | 4-20mA |
| Analog Input Maximum Voltage | 38V DC |
| Analog to Digital Converter (ADC) | ADS1115 |
| Analog to Digital Converter (ADC) Communication | I2C |
| Analog to Digital Converter (ADC) Address | 0x48 |
| Terminal Arrangement | A0 : Analog Input 0 - ADS1115 - 0x48 - AIN0  A1 : Analog Input 1 - ADS1115 - 0x48 - AIN1 A2 : Analog Input 2 - ADS1115 - 0x48 - AIN2 A3 : Analog Input 3 - ADS1115 - 0x48 - AIN3 ![](https://norvi.io/wp-content/uploads/2024/09/2-2.png) |

## **Communication Channels**

#### **RS-485 Communication**

| Communication Mode | HALF-DUPLEX |
| --- | --- |
| Transceiver | MAX485 |
| Unit Load  | 1/4 |
| Flow Control / Direction Control Pin | GPIO22 |
| TX Pin | GPIO26 |
| RX Pin | GPIO25 |
| Terminal Arrangement | ![](https://norvi.io/wp-content/uploads/2024/09/unnamed-75.png) |

#### **Ethernet SPI - W5500**

| Transceiver | W5500 |
| --- | --- |
| Speed | 10BaseT/100BaseTX |
| Supports auto-negotiation | Yes |
| TX/RX Buffer Size | Internal 32 Kbytes Memory |
| Supported Hardwired TCP/IP Protocols | TCP, UDP, ICMP, IPv4, ARP, IGMP, and PPPoE |
| Number of Simultaneous independent sockets | 8 |
| SCSn | GPIO5 |
| MISO | GPIO19 |
| MOSI | GPIO23 |
| SCLK | GPIO18 |
| RSTn | GPIO22  |
| INTn | GPIO2  |

#### **GSM Communication**

| Model of GSM Modem | SIM800C |
| --- | --- |
| FCC ID | UDU-SIM800C |
| TAC | 86610402 |
| RXD  | GPIO33  |
| TXD | GPIO32 |

## **GPIO Map**

| **GPIO** | **Description** | **Usage** |
| --- | --- | --- |
| 0 | outputs PWM signal at boot | NRST |
| 1 |  | TX0 |
| 2 |  |  |
| 3 |  | RX0 |
| 4 | input only | Digital Input 5 |
| 5 |  | SCSN |
| 12 | boot fail if pulled high |  |
| 13 | input only | Digital Input 4 |
| 14 | input only | Digital Input 3 |
| 15 |  | SD CARD CS |
| 16 |  | SDA |
| 17 |  | SCL |
| 18 |  | SCLK |
| 19 |  | MISO |
| 20 |  |  |
| 21 |  |  |
| 22 |  | RS485-Flow Control |
| 23 |  | MOSI |
| 24 |  |  |
| 25 |  | RS485-RX |
| 26 |  | RS485-TX |
| 31 |  |  |
| 32 |  | GSM TX |
| 33 |  | GSM RX |
| 34 | input only | Digital Input 1 |
| 35 | input only | Digital Input 2 |
| 36 |  | Buttons |
| 37 |  |  |

## **Expansion Port**

![](https://norvi.io/wp-content/uploads/2024/09/Expansion-Port-1024x375-1.jpg)

| **PIN** | **ESP32 Connection** |
| --- | --- |
| 1 | NOT CONNECTED |
| 2 | NOT CONNECTED |
| 3 | 5V |
| 4 | NOT CONNECTED |
| 5 | BOOT GPIO0 |
| 6 | NOT CONNECTED |
| 7 | 3.3V |
| 8 | SCL2    GPIO17 |
| 9 | GND |
| 10 | SDA2   GPIO16 |