About us
Thank you for visiting us….
We are passionate about DC Energy Measurement, Electric Mobility, Embedded Systems, Internet of Things, Edge Computing, and are striving to create awesome products and solutions for a better world.
Vajravegha is a portmanteau of two Sanskrit words. Vajra meaning Thunderbolt or Lightning, and Vegha meaning Speed or Vehemence. We take pride in contributing our bit and look forward to the coming golden age of Electric Vehicles and Clean, Smart and Connected World.
Our Esteemed Clients
OUR PRODUCTS
IoT Gateways
VVM401 4G IoT GATEWAY SOLUTION
Experience seamless connectivity and advanced control with the VVM401 4G IoT Gateway. Whether you need secure data transmission, real-time monitoring, or efficient control, the VVM401 has you covered. Its versatile features make it a powerful solution for a wide range of applications.
🌟 Key Features:
- Secure IoT cloud connectivity via 4G LTE, Ethernet, or Wi-Fi
- Compatible with frequency bands of all Indian telecom operators
- Modbus RTU master over Isolated RS485
- Modbus TCP/IP client over Ethernet
- Secure MQTT connectivity
- Convenient web portal configuration over Wi-Fi
- Data telemetry in standard JSON format with timestamps
- Micro SD Card for local data backup
- Firmware Over-The-Air (OTA) updates via Wi-Fi
- 4 Digital Isolated Inputs for versatile data acquisition
- 2 Digital Outputs for effective control
- Compact DIN Mount Enclosure (Dimensions: 135x110x55mm)
VVM401 Datasheet you can download from here VVM401
VVM401 VAJRUINO INDUSTRIAL 4G IoT GATEWAY DEVELOPMENT BOARD
Vajravegha Mobility Pvt Ltd based in Mumbai is a full-scale solution provider in the field of IoT, DC Energy Measurement and Embedded Systems. We take immense pride in introducing Vajruino, an innovative and user-friendly IoT development board designed to simplify the world of Internet of Things (IoT). This compact and versatile board offers a wide range of features, making it an ideal choice for IoT enthusiasts, developers, and industry professionals seeking an all-in-one solution. With its exceptional functionality and affordable price point, Vajruino stands out as a game-changer in the industry. It is meticulously crafted with simplicity and user-friendliness in mind. It provides a hassle-free experience for both beginners and experienced developers. The board comes equipped with labelled pins and concise documentation, simplifying the process of connecting and integrating various peripherals. Whether you’re a seasoned professional or just starting your IoT journey, Vajruino ensures a smooth and intuitive development experience.
Features
- ESP32 32 bit WiFi Controller
- SIMCOM A7672 4G LTE Module
- W5500 Ethernet Module
- RS485/RS232 with optional isolation
- Micro SD Card and Nano SIM slot
- Serial Port for code upload and monitoring
- On-board RTC and 32k EEPROM
- 4 Digital Isolated Inputs
- 2 Digital Outputs
- Protocols: MQTT(s), HTTP(s), DHCP, FTP, Modbus, SPI, I2C, etc
- FOTA (Firmware Update) support
- PCB Header for mounting RA-08 LoRa-WAN module
- Compact PCB size 130x105mm
Applications
- Industrial Automation: The VAJRUINO module’s support for Ethernet, Modbus, RS485, and RS232 protocols makes it suitable for industrial automation applications, including data acquisition, control systems, and monitoring.
- Internet of Things (IoT): With built-in Wi-Fi, cellular connectivity, and support for various protocols, the module can be used in IoT projects for remote monitoring, data transmission, and control.
- Data Logging and Time-keeping: The Micro SD card slot allows for data logging, making the module ideal for applications that require storage and analysis of large amounts of data. The accurate RTC ensures precise timekeeping for scheduling and synchronization in applications such as event triggering, data logging, and automation. The module also features a 32KB EEPROM for non-volatile storage of critical data, providing reliability and persistence across power cycles.
- Protocol Support: Various protocols such as MQTT(s), HTTP(s), DHCP, FTP, Modbus, SPI, and I2C are supported, enabling easy integration with different systems.
Detailed description is uploaded as vajruino.pdf in the datasheet section in our Github repository.
https://github.com/Vajravegha/vajruino
Datasheet: Vajruino
VVM601 ESP32-S3 with Quectel EC200U 4G LTE GPS Module
Features:
- ESP32-S3-WROOM-1-N16R8 : 2.4GHz Wi-Fi + Bluetooth 5, 240 MHz with 16MB Flash Memory and 8MB PS-RAM, 36 programmable GPIOs, AI acceleration support for vector instructions, full speed USB 2.0, no USB-TTL required.
- Quectel EC200U-CN 4G LTE Cat 1 module with 10Mbps downlink, supports all Indian freqency bands
- Built-in GNSS / GPS
- Single USB Type B connector for power, serial monitoring and programming
Applications: Artificial Intelligence of Things (AIoT), smart home, smart appliances, smart control panel, POS, data cards, energy control and monitoring, IoT gateways, etc.
Click below for VVM601 datasheet.
VVM601 ESP32-S3 with Quectel EC200U 4G LTE GPS ModuleVVM601 ESP32 4G LTE MODULE
VVM501 ESP32 4G LTE MODULE
Features:
- 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
- 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.
- ESP-WROOM-32 30 PIN Development Board which has a dual 32-bit CPU is coupled with 4G LTE wireless communication module SIM7670C
- 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
- The preconfigured AT commands of A7670C makes it easier for the user to communicate via MQTT, SMS, Calls etc.
- 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
- Indian 4G bands can be used with this module. This means it can be used with Jio, Airtel, Vodafone networks, etc.
- The board supports multiple built-in network protocols like HTTP, HTTPS, FTP, FTPS, MQTT along with SMS and calls
- The board is powered using a Type- C connector and requires a regulated 5V/2A power source
- On-board fuse protection, transient voltage protection and EMI suppression
- VVM LTE 4G module come with antennas that allow for better reception and faster data speeds.
- Automatic switchover to 2G/EDGE in absence of LTE.
- On-board USB connector, SIM card connector, antenna connector and additional PCB connector for User Interface
Applications: Supports multiple network bands and can be used in a variety of applications including IoT applications, Telematics, Surveillance Devices, PoS, Industrial Routers, Remote Diagnostics, MQTT gateways, etc. Legacy devices still relying on 2G/3G can be upgraded to 4G networks and made IoT/ Industry 4.0 ready.
Click below for VVM501 datasheet.
VVM555 Analog and Digital Input Output Module
Features
- 8 channel analog inputs 4-20mA
- 4 channel digital isolated inputs upto 24v DC
- 4 potential free relay outputs upto 240v 7A
- Modbus RTU over RS485 slave at 9600 default baud, supports function code 3 and 6
- Optional JSON format support for Serial UART TTL communication with 3.3v / 5v microcontrollers
- Power supply upto 24v DC, 12-bit ADC for analog measurement, LED indication for Power, Tx and Rx
- Compact PCB size 123x58mm
Description
VVM555 provides economical and precise analog and digital IO solution for industrial automation applications. It is equipped with 8 channel 4-20mA analog inputs, 4 channel digital opto-isolated inputs and 4 relay outputs. It supports Modbus RTU protocol over RS485 to directly provide input values and control relay outputs. Additionally it can provide these readings continuously (non-polling) to any 3.3v/5v embedded system by standard JSON format.
Click below for VVM555 datasheet.
VVM555 Analog and Digital Input-Output Module Datasheet
DC Energy Measurement
1) Current Sensor Modules
VVM001
VVM002
VVM003
VVM005
VVM001 is 200A Current Sensor Module AC DC with Over-Current Detection
Click below for VVM001 datasheet.
VVM002 is 100A Current Sensor Module AC DC with Over-Current Detection
Click below for VVM002 datasheet.
VMM003 is 35A Current Sensor Module AC DC with Over-Current Detection
Click below for VVM003 datasheet.
VVM005 is 70A Current Sensor Module AC DC with Over-Current Detection
Click below for VVM005 datasheet.
VVM004
VVM004 is 35A Current Sensor Module AC DC Split Through Case with Over-Current Detection
Click below for VVM004 datasheet.
2) Isolated Voltage Sensor Modules
Digital Voltage Sensors
- Isolated DC voltage measurement up to 400v
- UART based output at 9600bps
- 1.5kv isolation
- Typical Applications include Motor Control, Power Systems, Solar Systems, Battery Chargers, Electric Vehicles, etc.
VVM111 400V DC Isolated Voltage Sensor Module with Serial UART Communication
MODBUS Compatible
VVM111 Digital Voltage Sensor Module provides economical and precise isolated DC voltage measurement solution for industrial and commercial applications. It allows system designers to safely monitor line voltage. Measured voltage is digitally available on Serial UART TTL interface. This interface can also be connected to RS232/RS485 systems
Datasheet:VVM111
3) Isolated Voltage and Current Sensor Module with Serial UART Communication MODBUS Compatible
Vajravegha VVM311 400V 200A DC Isolated Voltage and Current Sensor Module with Serial UART Communication MODBUS Compatible
* Precise isolated DC Voltage measurement. Galvanic isolation protects sensitive systems from hazardous voltage measurement, DC voltage measurement range: 0-400V
* Hall Effect based non-invasive current measurement, no shunt resistor or wire break required, based on WCS1500 sensor, DC current measurement upto 200A
VVM311 Digital Voltage Current Sensor Module provides economical and precise isolated DC voltage and current measurement solution for industrial and commercial applications. It allows system designers to safely monitor line voltage and current. Measured voltage is digitally available on Serial UART TTL interface. This interface can also be connected to RS232/RS485 systems
Datasheet:VVM311
Vajravegha VVM312 400V 100A DC Isolated Voltage and Current Sensor Module with Serial UART Communication MODBUS Compatible
* Precise isolated DC Voltage measurement. Galvanic isolation protects sensitive systems from hazardous voltage measurement, DC voltage measurement range: 0-400V
* Hall Effect based non-invasive current measurement, no shunt resistor or wire break required, based on WCS1500 sensor, DC current measurement upto 100 A
VVM312 Digital Voltage Current Sensor Module provides economical and precise isolated DC voltage and current measurement solution for industrial and commercial applications. It allows system designers to safely monitor line voltage and current. Measured voltage is digitally available on Serial UART TTL interface. This interface can also be connected to RS232/RS485 systems
Datasheet:VVM312
4) Digital Voltmeter Ammeter Powermeter Energymeter
VVM201
VVM202
VVM203
VVM204
VVM201: VVM Digital DC Voltmeter Ammeter Power Meter 100V 200A with Watt hour, Ampere hour, Serial UART Communication, Over Current Detection, MODBUS Compatible
Click below for VVM201 datasheet.
VVM202: VVM Digital DC Voltmeter Ammeter Power Meter 100V 100A with Watt hour, Ampere hour, Serial UART Communication, Over Current Detection, MODBUS Compatible
Click below for VVM202 datasheet.
VVM203: VVM Digital DC Voltmeter Ammeter Power Meter 100V 50A with Watt hour, Ampere hour, Serial UART Communication, Over Current Detection, MODBUS Compatible
Click below for VVM203 datasheet.
VVM204: VVM Digital DC Voltmeter Ammeter Power Meter 100V 25A with Watt hour, Ampere hour, Serial UART Communication, Over Current Detection, MODBUS Compatible
Click below for VVM204 datasheet.
5) Voltage Current Energy Sensor Modules
VVM301
VVM302
VVM303
VVM304
VVM301: VVM Digital DC Voltage Current Sensor Module 100V 200A with Watt hour, Ampere hour, Serial UART Communication, Over Current Detection, MODBUS Compatible
Click below for VVM301 datasheet.
VVM302: VVM Digital DC Voltage Current Sensor Module 100V 100A with Watt hour, Ampere hour, Serial UART Communication, Over Current Detection, MODBUS Compatible
Click below for VVM302 datasheet.
VVM303: VVM Digital DC Voltage Current Sensor Module 100V 50A with Watt hour, Ampere hour, Serial UART Communication, Over Current Detection, MODBUS Compatible
Click below for VVM303 datasheet.
VVM304: VVM Digital DC Voltage Current Sensor Module 100V 25A with Watt hour, Ampere hour, Serial UART Communication, Over Current Detection, MODBUS Compatible
Click below for VVM304 datasheet.
Data Converters
1) VVM481: Isolated Serial UART TTL Module
Product name: VVM481: Isolated Serial UART TTL Module
features:
- Suports Baud rates upto 115kbps
- 1500V DC isolation between input and output side
- Signals 5v and 3.3v compatible
- Runs on a single 5v power supply
- Used in applications where galvanic isolation is essential, like RS485 and Modbus devices, industrial gateways, Serial ports etc
- Datasheet : VVM481
2) VVM485: Isolated USB / TTL to RS485 / TTL Converter for Industrial Communication using Serial TTL / RS485 / Modbus Systems
Product name: VVM485: Isolated USB / TTL to RS485 / TTL Converter for Industrial Communication using Serial TTL / RS485 / Modbus Systems
features:
- USB or TTL to RS485 or TTL communication between systems requiring galvanic isolation. Eliminates common grounding to protect sensitive systems from hazardous voltages
- Isolation Voltage between Input and Output 1.5kV DC. TVS Diodes for Transient and Lightning Protection, self-recovery fuse. Support Baud Rates upto 115200. Industrial Grade
- Original FT232RL chip with plug and play drivers, LED indication for Power, Transmission and Reception, requires only single power supply
- ABS Enclosure with both DIN Rail and Wall Mount capability. Dimensions 110 x 50 x 50 mm
- Typical Applications include TTL Serial, RS232, RS485, Modbus and other communication protocols
- Suitable for Industrial Automation and Gateways Data Switching Systems, Host to Machine communication MADE IN INDIA
- Datasheet: VVM485
Solutions
Have an idea in mind, but don’t know how to transform it into a product ?
We provide solutions for DC energy measurement, IoT, Embedded Systems, EV Technologies, Circuit Simulation, PCB Design, and also provide training on these technologies.
