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Buy RF Transmitters and Receivers, NRF Wireless Module Online in India

Buy RF Module

An RF module is a small device used for transmitting and receiving radio signals. It is widely used in applications like remote controls and Internet of Things (IoT) devices. These modules work at a variety of frequencies, including 433 MHz and 2.4 GHz, and are made up of components that send and receive signals. Signal strength and possible interference are two aspects that influence their performance. Additionally, RF modules may include a variety of connection methods, such as antenna ports or connectors. RF modules in India can cost anything from ₹200 to ₹3000 or more.

RF Module Categories

433MHz RF Modules – Simple transmitter and receiver (TX/RX) pairs and superheterodyne receivers for basic wireless communication, home automation, alarms, and remote control applications.
NRF51822 BLE Modules – Bluetooth Low Energy (2.4 GHz) modules based on ARM Cortex-M0, perfect for wearables, BLE beacons, mobile-connected IoT devices, and low-power wireless nodes.
RFM69 Transceiver Modules – Sub-GHz RF transceivers (315/433/868/915 MHz) designed for long-range, low-power sensor networks, industrial IoT, telemetry, and remote monitoring.

Applications of RF Modules

Wireless data transmission between two or more microcontrollers
IoT devices and low-power sensor networks in homes, farms, and industries
Remote controls for lights, gates, fans, and smart home automation systems
Alarms, security systems, and smart doorbells
Wearables, BLE beacons, and smart gadgets using NRF51822
Long-range telemetry and environmental monitoring using RFM69

Wiring & Setup Guides

Use these quick wiring references to get started with your RF modules:

433MHz RF Transmitter & Receiver with Arduino

Transmitter (TX)
  TX   → Arduino Digital Pin 10
  VCC  → 5V
  GND  → GND

Receiver (RX)
  DATA → Arduino Digital Pin 2
  VCC  → 5V
  GND  → GND

NRF51822 BLE Module Wiring (3.3V Only)

VCC   → 3.3V
GND   → GND
SWDIO → SWD Programmer
SWCLK → SWD Programmer
RX/TX → UART pins for testing and firmware communication

Note: NRF51822 pins are NOT 5V tolerant.

RFM69 Transceiver SPI Wiring with Arduino

MOSI → Arduino Pin 11
MISO → Arduino Pin 12
SCK  → Arduino Pin 13
NSS  → Arduino Pin 10
DIO0 → Arduino Pin 2
VCC  → 3.3V
GND  → GND

Tip: Use a level shifter when interfacing 3.3V RFM69 with 5V Arduino boards.

Range & Frequency Specifications

Module Type	Frequency	Typical Range*	Best Use Cases
433MHz RF Module	433 MHz	50–200 m (open area)	Remote controls, basic automation, low-data wireless links
NRF51822 BLE Module	2.4 GHz (BLE)	10–30 m	Wearables, BLE beacons, smartphone-connected IoT projects
RFM69 Transceiver Module	315 / 433 / 868 / 915 MHz	500 m – 1.5 km (with proper antenna)	Long-range sensor networks, telemetry, industrial IoT

*Actual range depends on antenna design, environment, and line-of-sight conditions.

Integration Tips for Reliable RF Performance

Use the correct quarter-wave antenna length for the selected frequency to maximise range.
Place RF modules away from switching power supplies, motors, and high-current traces to reduce noise.
Ensure both transmitter and receiver are configured with the same frequency, data rate, and modulation settings.
For NRF51822, confirm the correct baud rate and soft-device firmware before debugging connection issues.
For RFM69, match the network ID, encryption key, and frequency on all nodes in the network.
Enable CRC and basic error-checking to reduce packet loss in noisy environments.

Troubleshooting RF Modules

No signal or no data received: Check antenna connection, power supply, and ground wiring first.
Poor range: Improve antenna placement, avoid obstacles, and use an external antenna where possible.
Excess noise on 433MHz: Use Manchester encoding or checksum validation to filter corrupted data.
NRF51822 not visible in BLE scan: Ensure the module is in advertising mode and powered at 3.3V.
RFM69 packet loss: Verify frequency settings, RSSI levels, and that all nodes share the same network ID.
Interference issues: Keep 2.4 GHz BLE modules away from Wi-Fi routers and other high-power 2.4 GHz devices.

Buy NRF Module

The NRF modules are small, low-cost wireless transceiver units that can be used in a wide range of applications. With a range of up to 100 meters, these modules are ideal for applications such as remote control systems and sensor networks. The NRF module's cost-effectiveness makes it an interesting option for projects with limited budgets.

Prices of RF Modules in India:

RF Modules	Prices
RF434 Transmitter + Receiver	Rs.126
RF Transmitter Receiver Pair	Rs.132
433mhz rf transmitter and receiver price	Rs.496
HC-12	Rs.578
76MHz-108MHz Wireless Stereo FM Radio Kit	Rs.369
RFM69 FSK Transceiver Module	Rs.546

Prices of NRF Modules in India:

NRF Modules	Cost
NRF24L01 Adapter Board	Rs.46
Nrf24L01 Ultra Low Power	Rs.78
NRF24L01+PA+LNA	Rs.187
NRF51822	Rs.1062

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Popular Searches

1. What are RF transmitters and receivers?

An RF transmitter receives serial data and sends it wirelessly through RF using an antenna connected at pin 4. It typically transmits at 1Kbps–10Kbps. The RF receiver, tuned to the same frequency, receives this transmitted data.

2. Can I buy a RF transmitter and receiver kit?

Yes, you can buy an RF transmitter and receiver kit from authorized sellers like Robocraze. RF kits such as FM radio kits (with HEX3653, DIY FM receiver, 76–108 MHz frequency range) are available.

3. Which are the best Arduino compatible RF modules?

The RF transmitter and receiver pair is one of the best Arduino-compatible RF modules. The transmitter is simple to integrate, and the receiver offers a sensitivity of -105 dB while the circuitry operates on 5V.

4. What is an NRF module?

The nRF24L01 is a wireless transceiver module capable of both transmitting and receiving data. It operates at 2.4 GHz (ISM band), making it legal for most engineering and hobby applications worldwide.

5. Which are the most popular NRF modules?

The NRF24L01 transceiver module is the most popular and widely used NRF device in the market.

6. What is the use of NRF24L01?

The nRF24L01 is used in wireless control applications where data needs to be transmitted and received. It is inexpensive and compatible with Arduino, Raspberry Pi, and many other microcontrollers.

7. What is the range of NRF24L01?

In open space and at lower baud rates, the NRF24L01 can achieve a range of up to 100 meters. It operates in the 2.4 GHz band with baud rates from 250 kbps to 2 Mbps.

8. What types of RF and NRF modules are available?

You’ll find a variety of wireless communication modules, including simple RF transmitter/receiver pairs operating at ~433 MHz, modules like the NRF24L01 2.4GHz RF Wireless Transceiver designed for ultra-low power 2.4GHz communication, and more advanced transceiver modules such as the RFM69 FSK Transceiver Module that support longer range or higher-feature wireless data links. Modules vary in frequency band, range, power, and interface capability.

9. Are these modules compatible with Arduino and Raspberry Pi?

Yes. Many of these modules are explicitly described as “compatible with Arduino, Mbed, ARM” etc., and they offer standard interfaces (SPI, UART) that microcontrollers and single-board computers like Raspberry Pi can use. For instance, the NRF24L01 module supports SPI and works with microcontroller boards. So you can integrate them into projects using Arduino or Raspberry Pi.

10. What is the maximum communication range for these modules?

Range varies considerably depending on the module, frequency band, antenna, and environment. For example, a 433 MHz module lists a typical open-space range up to around 50 meters under standard conditions. Some enhanced modules with power amplifier (PA) and low-noise amplifier (LNA) components advertise open-air ranges of several hundred meters (for example up to ~800-1000 m in very clear conditions). But real-world indoor range will often be lower due to obstacles, interference and antenna design.

11. Can these modules be used for IoT and wireless robotics projects?

Absolutely. These wireless modules are well suited for IoT applications, sensor networks, telemetry links in robotics, remote control, data communication between nodes and more. The low-power and multi-channel features make them a good fit when you’re building remote sensors, robot controllers, wireless telemetry for drones, or connected systems.

12. Are these modules easy to integrate with microcontrollers?

Yes. Many modules come with standard headers or breakout boards, documented pinouts, compatible libraries (especially for Arduino) and adapter boards that help interface to 3.3 V or 5 V systems. For instance there is an adapter board designed to make the NRF24L01 module plug-in-friendly for typical microcontrollers. With some wiring and library support, you can typically get them working in minutes.

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