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VVM501 - ESP32 4G LTE A7670 Module for combined 4G Wi-Fi and Bluetooth application

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VVM501 ESP32 4G LTE module board with labelled connectors and QR codes

Product Description

VVM501 module combines features of A7670C 4G LTE module by SIMCOM with an ESP32 30 Pin WROOM 32 development board. A7670C 4G LTE modules allows for faster data speeds than traditional 3G and 2G networks. The 4G LTE module also helps to improve the reliability of the network. This module is a perfect choice for achieving high speed wireless communication. Another main feature of A7670C module is its preconfigured MQTT AT commands. One of the ways that 4G LTE networks are able to offer such high speeds for Embedded/IoT devices is through the use of MQTT. MQTT is a communication protocol that allows devices to send and receive data packets over a network without having to use a dedicated connection. The board also supports multiple built-in network protocols like HTTP, HTTPS, FTP, FTPS along with SMS and calls.

Applications

Internet of Things (IoT) Telematics Surveillance Devices PoS Industrial Routers Remote Diagnostics MQTT Gateways

Product Specifications

ControllerESP-WROOM-32 30 PIN Development Board (LX6 32-bit, dual-core microprocessor running at 240MHz)
Controller Features
  • 15 12-bit Analog-to-Digital Converter (ADC) channels
  • 25 Programmable GPIOs
  • 3 SPI interfaces
  • 2 UART interfaces
  • 1 I2C interfaces
  • 25 PWM output channels
  • 2 Digital-to-Analog Converters (DAC)
  • 9 Capacitive sensing GPIO’s
Memory4 MB flash / 520 KB SRAM
4G LTE ModuleSIMCOM A7670C
SIM CardNano SIM Cards Only
Power Supply5V / 2A supply
WiFiYES
BluetoothYES
4G AntennaFPC or Foldable Rubber Duck Antenna as per customer request. Gain up to 3.5dBi, VSWR < 2.0
Dimensions100mm X 40mm

Product Features

  1. VVM ESP32 4G LTE Module is an ultra-low power embedded SoC designed for high-speed wireless communication. It integrates the latest LTE module standards and provides a host of features such as advanced modulation and coding technologies, flexible antenna configurations, and high-speed radio transmission.
  2. Easy migration from 2G/3G network to 4G network now made possible using this module. Network providers are in the process of shutting down support for 2G /3G and businesses relying on wireless communication are hurrying to transition to 4G LTE connectivity. Legacy devices still relying on 2G/3G can be upgraded to 4G networks and made IoT/ Industry 4.0 ready.
  3. ESP-WROOM-32 30 PIN Development Board which has a dual 32-bit CPU is coupled with 4G LTE wireless communication module SIM7670C.
  4. The module uses one of the popular 4G LTE chipset A7670C by SIMCOM. The SIM7670C is Multi-Band LTE-TDD/LTE-FDD/HSPA+ and GSM/GPRS/EDGE module solution in an SMT type which supports LTE CAT1 up to 10Mbps for download data transfer.
  5. The preconfigured AT commands of A7670C makes it easier for the user to communicate via MQTT, SMS, Calls etc.
  6. ESP32-WROOM-32 is a powerful, generic Wi-Fi + Bluetooth + Bluetooth LE MCU module that targets a wide variety of applications, ranging from low-power sensor networks to the most demanding tasks, such as IoT applications, voice encoding, music streaming and MP3 decoding.
  7. Indian 4G bands can be used with this module. This means it can be used with Jio, Airtel, Vodafone networks, etc.
  8. The board supports multiple built-in network protocols like HTTP, HTTPS, FTP, FTPS, MQTT along with SMS and calls.
  9. The board is powered using a Type-C connector and requires a regulated 5V/2A power source.
  10. On-board fuse protection, transient voltage protection and EMI suppression.
  11. VVM LTE 4G module come with antennas that allow for better reception and faster data speeds.
  12. Automatic switchover to 2G/EDGE in absence of LTE.
  13. On-board USB connector, SIM card connector, antenna connector and additional PCB connector for User Interface.

Package Includes

  • 1 × VVM501 ESP32 4G LTE A7670 Module
  • 4G antenna — FPC or foldable rubber duck antenna as supplied / customer request

Other Information

NOTES AND PRECAUTIONS
  • Use only a well regulated and stable 5v 2A supply for the Type C connector. Exceeding voltage above 5.5v either on the Type C connector or ESP32 data cable can damage the 4G module/ESP32.
  • Tx and Rx pins on J1 connector (connected to 4G chipset pins) are 1.8v level only. EN pin on J1 connector (connected to 4G chipset PowerKey pin) is 3.3v level only. If your host microcontroller or system exceeds these voltage levels, then use a suitable voltage level converter else the 4G module can get damaged.
  • Before reprogramming the ESP32, understand the AT Commands properly. Incorrect AT commands sent to the module can corrupt the 4G module memory or change the default configuration settings.
  • THIS MODULE IS NOT USED TO MAKE DIRECT CALLS AS SPEAKER AND MICROPHONE IS NOT PRESENT ON THE BOARD. CONTACT US DIRECTLY INCASE OF CUSTOMISED SOLUTIONS.
  • While reprogramming ESP32, if the code fails to upload, kindly power off Type C USB to turn off the 4G Modem, try reprogramming and power on Type C again. After new code is uploaded into ESP32, reset the ESP32 once to resume normal operation.
  • WITH THE ADVENT OF 5G NETWORKS IN INDIA, FREQUENCY BANDS ALLOTED TO 4G MODULES HAVE CHANGED FOR SOME NETWORKS. KINDLY TEST THE MODULE WITH SIM CARD OF MULTIPLE TELECOM OPERATORS AND HIGH SIGNAL STRENGTH AREAS. AT COMMAND “AT+CREG?” IS USED TO CHECK NETWORK REGISTRATION STATUS.

Country of Origin: India

Warranty Information

1 Year Seller Warranty

This item is covered with a standard warranty of 1 year from the time of delivery against manufacturing defects only. This warranty is given for the benefit of TwoElectrons customers from any kind of manufacturing defects. Replacement will be done against manufacturing defects.

What Voids Warranty

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

Shipping & Returns Policy

Shipping Policy:
  • Delivery time for orders within India is 7-10 working days. Delivery varies based on location and courier service.
  • Delivery time for orders outside India is up to 20 working days. Delivery varies based on location and courier service.
  • If the item is out of stock, you can still place an order. The estimated delivery time will be notified to you by email.
Return & Refund Policy:
  • Return window: 7 days from receipt unless stated otherwise.
  • No refunds or replacements after the return window.
  • Returns are accepted only for non-working or damaged products.
  • Initiate return requests from here: Return Request or contact us at 09831070550.
  • Refunds are processed within 3-4 working days after inspection and approval.

Main Features

  • ESP-WROOM-32 30 PIN development board with dual 32-bit CPU
  • SIMCOM A7670C 4G LTE Cat 1 module with up to 10Mbps downlink
  • Wi-Fi, Bluetooth and Bluetooth LE connectivity
  • Preconfigured MQTT AT commands
  • Supports HTTP, HTTPS, FTP, FTPS and MQTT
  • Nano SIM support with Indian 4G bands
  • Automatic switchover to 2G/EDGE in absence of LTE
  • USB Type-C power input, regulated 5V/2A
  • On-board fuse protection, transient voltage protection and EMI suppression
  • On-board USB connector, SIM card connector, antenna connector and additional PCB connector for user interface
SKU: 2EMK2264
₹ 3,360.00
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Lead time

QUANTITY DISPATCH
1-10 units Order from India: 7-10 working days
Order outside India: Up to 20 working days
10+ units To be negotiated
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