VVM701-4G IoT Gateway Board ESP32S3 Quectel EC200U with RS485 RS232 Ethernet Analog Digital IO for Industrial Applications
Product Description
The Vajravolt VVM701 is an industrial AIoT gateway and development board built around the ESP32-S3 and Quectel EC200U-CN 4G LTE Cat 1 module. It combines Wi-Fi, Bluetooth 5, GNSS/GPS, isolated serial interfaces, industrial analog and digital I/O, relay outputs, local storage and expansion support in a single platform for embedded/edge AIoT, industrial automation, data acquisition, logging, control and remote monitoring applications.
Applications
Product Specifications
| ESP32-S3 GPIO Pin Mapping | All peripherals not mounted on board. Few pins may be shared among peripherals. |
| EC200U-CN 4G LTE / GPS Module (Serial Communication) | 41(Tx) to Rx, 40(Rx) to Tx, 42 to Power Key respectively of 4G Module |
| SPI Communication for Ethernet/LCD/LoRa | 11(MOSI), 13(MISO), 12(CLK) - Regular SPI for W5500 Ethernet, 2.4 inch Touchscreen LCD, RFM95W LoRa |
| SD Card (HSPI Communication) | 38(MISO), 47(MOSI), 39(CLK), 48(CS) Alternate HSPI |
| RS485 / RS232 / CAN (Serial Comm.) | 1(Tx), 2(Rx). Select either RS485 or RS232 or CAN by the Jumper Selector |
| RTC (DS3231 based – I2C Comm.) | 4(SCL), 5(SDA) |
| Data Acquisition (Serial Comm.) | TXD0 and RXD0 for communication with Nuvoton MS51FB9AE for 5 Analog Channel, 4 Isolated Digital Channel and 2 Relay Channel |
| W5500 Ethernet (SPI Comm.) | 21 for Chip Select, plus regular SPI pins |
| 2.4” TFT Touchscreen LCD (SPI) | 9(LCD Reset), 10(LCD DC), 14(LCD CS), 8(Touch CS), plus regular SPI pins |
| LoRa RFM95W (SPI) | 16(LoRa CS), 17(LoRa RST), plus regular SPI pins |
| Camera (SCCB Communication) | OV2640, OV7670 or similar cameras. 4(SCL/SIOC), 5(SDA/SIOD), 6(VSYNC), 7(HREF), 15(PCLK), 16(D7), 17(XCLK), 3(D6), 46(D5), 10(D4), 11(D0), 12(D2), 13(D3), 45(D1) |
| INMP441 I2S Microphone | 6(I2S CLK), 7(I2S WS), 15(I2S SDATA) |
| Green Status LED | 18, used for diagnosis to indicate network, data transmission, health, etc. |
Product Features
- ESP32-S3 WROOM-1-N16R8: Wi-Fi, Bluetooth 5, 240MHz with 16MB Flash and 8MB PS-RAM, 36 programmable GPIOs, AI acceleration support, full speed USB 2.0
- Quectel EC200U-CN 4G LTE Cat 1 module with 10Mbps downlink
- Built-in GNSS/GPS
- Isolated RS485 / RS232 (jumper selector)
- Micro SD Card and Nano SIM slot
- Single USB Type-B connector for programming and monitoring
- DS3231 RTC based on I2C protocol
- MS51FB9AE for Data acquisition
- 5 ch. 12-bit Analog Inputs 4-20mA / 0-5v
- 4 ch. Digital Isolated Inputs (up to 24v)
- 2 Relay Output 30v DC / 2A
- Protocols: MQTT(s), HTTP(s), DHCP, FTP, Modbus, SPI, I2C, etc.; FOTA supported
- 9 - 30v DC Power Supply, PCB size 130x105, separate enclosure available
Other Information
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
Core Specifications
- Microcontroller: ESP32-S3 WROOM-1-N16R8
- Wi-Fi and Bluetooth 5.0
- AI acceleration support
- 240 MHz processor with 16MB Flash and 8MB PSRAM
- Cellular Connectivity: Quectel EC200U-CN 4G LTE Cat 1 module with GNSS/GPS
Interfaces and Connectivity
- I/O Interfaces:
- RS485/RS232 (jumper selectable)
- 5 Analog Inputs (4–20mA / 0–5V)
- 4 Isolated Digital Inputs (up to 24V)
- 2 Relay Outputs (30V DC/2A)
- Memory and Expansion:
- Micro SD card slot (16GB max)
- Nano SIM slot
- Connectivity: Ethernet support (via optional W5500 module)
- Supported Protocols: MQTT, HTTP, FTP, Modbus, SPI, I2C
- Over-the-air updates (OTA)
Power and Dimensions
- Power Supply: 9–30V DC
- Size: PCB dimensions of 130mm x 105mm
Peripheral Support
- Cameras (AI Vision)
- Microphones (I2S Audio)
- LCDs
- LoRa modules
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 |
Protections for this product
Delivery via TwoElectrons Logistics
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Standard Refund Policy
You're covered! If your order doesn't ship, arrives incomplete, or has any product issues, you can claim a full refund.