---
title: E70G Mini DB
description: "## Basic Overview The [E70G](https://eicut.com/product/e70g-eu-lga-eicut-module/) Mini DB Is a compact and integrated module designed specifically to be used on products and save a lot of time handling GSM & GNSS power, RF circuits and etc. ## Supported Module List The…"
url: "https://eicut.com/wiki/development-boards/e70g-mini-db/"
updated: "2026-07-22"
category: Development Boards
---

# E70G Mini DB

## Basic Overview

The [E70G](https://eicut.com/product/e70g-eu-lga-eicut-module/) Mini DB Is a compact and integrated module designed specifically to be used on products and save a lot of time handling GSM & GNSS power, RF circuits and etc.

## Supported Module List

The pin of this board are standard breadboard bases.

##  Feature List

- Class 3 (23dBm±2.7dB) for FDD-LTE bands
- Class 3 (23dBm±2.7dB) for TDD-LTE bands
- Maximum support CAT1 Bis
- Support 1.4 ~ 20MHz RF bandwidth
- FDD: Maximum uplink rate 5Mbps, maximum downlink rate 10Mbps
- TDD: Maximum uplink rate 2Mbps, maximum downlink rate 8Mbps
- Support Wi-Fi Scan positioning, share the main antenna
- TCP/UDP/MQTT/FTP/FTPS/HTTP/HTTPS/LWM2M/Coap
- For audio use, requires an external codec chip
- Supports 16-bit linear encoding format
- Supports short frame mode: the module is only used as a master device

## Board Resources

### Function Description

The detailed assignment of the peripheral interfaces on the Development board is as follows:

![Hardware layout of the E70G Mini DB](https://eicut.com/wp-content/uploads/2026/06/E70G-Mini-DB-1-649x1024.webp)
Hardware layout of the E70G Mini DB

| NO. | Name | Silkscreen | Comment |
| --- | --- | --- | --- |
| **1** | Sim card case | J1 | 4FF SIM Card 12.3 × 8 mm |
| **2** | External GNSS Antenna | GNSS ANT | UFL ANTENNA |
| **3** | External GSM Antenna | GSM ANT | Main antenna + Wi-Fi antenna |
| **4** | 10pin | P1-P2 | header 2.54mm |
| **5** | Jumper | USB BOOT | Short circuit to program the module |
| **6** | USB TYPE-C | USB1 | USB interface which can be used for debugging and upgrading firmware |

**The Development board has 2 functional indication LEDs, as follows:**

- **D1**: NETLIGHT
- **D2**: Power indication LED

###  Board Interfaces

The main pin placement of the Development board is shown in the following figure:

![E70G Mini DB-Pinout](https://eicut.com/wp-content/uploads/2026/06/E70G-Mini-DB-2-1024x797.webp)
E70G Mini DB-Pin Mapping

- **E70 Mini DB****P1-P2**

| NO. | Name | Silkscreen | Comment |
| --- | --- | --- | --- |
| **P1-1** | Request to Send | RTS | Output and input |
| **P1-2** | NC | NC | Not connect |
| **P1-3** | RXD | RXD | Receive data |
| **P1-4** | TXD | TXD | Transmit data |
| **P1-5** | DCD | DCD | Digital output |
| **P1-6** | DTR | DTR | Digital input |
| **P1-7** | DBG-TXD | DBGTX | Transmit data |
| **P1-8** | DBG-RXD | DBGRX | Receive data |
| **P1-9** | NC | NC | Not connect |
| **P1-10** | NC | NC | Not connect |
| **P2-1** | Ground | GND | Ground |
| **P2-2** | CTS | CTS | Clear to send |
| **P2-3** | RI | RI | Ring indication |
| **P2-4** | ADC0 | ADC | General purpose analog to digital converter Vmax=2.8V, Vmin=0V |
| **P2-5** | NC | NC | Not connect |
| **P2-6** | NC | NC | Not connect |
| **P2-7** | NC | NC | Not connect |
| **P2-8** | NC | NC | Not connect |
| **P2-9** | Ground | GND | Ground |
| **P2-10** | Power | +5 | Main power supply of module Make sure supply sufficient current in a transmitting burst (typically rises to 1.6A) Vmin=4.5V, Vmax=5.5V |

   🔗VRTC Pin Voltage

• **Input:** VImax = 3.3V, VImin = 1.5V, VInorm = 2.8V
 • **Output:** VOmax = 3V, VOmin = 2V, VOnorm = 2.8V
 • **IOmax** = 2mA
 • **Iin** ≈ 10µA

## Board Dimensions

![Dimensions of E70G Mini DB](https://eicut.com/wp-content/uploads/2026/06/E70G-Mini-DB-3-758x1024.webp)
Board Dimensions

  🔗Hint

Make sure the power supply voltage is stable.
 The board should power up and turn on automatically without the need for a turn-on function.

## FAQ

  What is the E70 Mini DB?

A compact, breadboard-friendly development board for the **E70** LTE Cat 1bis module — designed to simplify prototyping of GSM/LTE + Wi-Fi Scan applications with easy access to all module pins.

    What network speeds does the E70 support?

• FDD-LTE: up to **10 Mbps DL / 5 Mbps UL**
 • TDD-LTE: up to **8 Mbps DL / 2 Mbps UL**
 Supports LTE Cat 1 Bis with 2G fallback capability.

    Does it support external antennas?

Yes — two U.FL connectors: one for **GSM/Main + Wi-Fi antenna** and one for **GNSS antenna**.

    How do I program or debug the module?

Connect via **USB Type-C**. Short the **USB BOOT jumper** to enter firmware download mode. The board uses CH343P or similar USB-to-UART converter for easy AT command testing.

    What SIM card type does it support?

Standard **Nano-SIM (4FF)** slot.

    What do the LEDs indicate?

• **D1 (NETLIGHT)**: Network status (searching / registered / data activity)
 • **D2**: Power indication

    What interfaces are available on the 10-pin headers?

Main UART (TX/RX), Debug UART, RTS/CTS, DTR/DCD, RI, ADC, +5V power, and multiple GND pins.

    What is the power supply requirement?

Supply **5V** via USB-C or the +5 pin. Peak current during transmission can reach up to **1.6 A**. Make sure your power source is stable.

    Is audio supported on this board?

The module supports 16-bit linear PCM audio, but requires an **external audio codec chip** for microphone and speaker functionality.

    What is the main use case for this board?

Rapid prototyping of LTE Cat 1bis IoT devices, M2M solutions, asset tracking, and any project requiring reliable 4G connectivity with GNSS and low power consumption.