RF Communication Modules Guide: 433 MHz, nRF24L01 and LoRa
RF Communication Modules Guide: 433 MHz, nRF24L01 and LoRa
In this guide, by comparing RF communication modules 433 MHz, nRF24L01 and LoRa technologies, you will learn which module should be used in which project.
RF Module Comparison Table
Technology DetailsA. 433 MHz RF Modules (Ex: FS1000A / XY-MK-5V)These modules are the simplest and cheapest wireless communication method using ASK (Amplitude Shift Keying) modulation.
Advantages: Very cheap, simple to use (can work without library), easy antenna construction.Disadvantages: Too much interference (noise), not secure, data speed is very low.
In Which Project Should Be Used? Simple wireless doorbells, garage door remotes, simple on / off switching operations.B. nRF24L01+ (2.4 GHz ISM Band)This chip produced by Nordic Semiconductor works in 2.4 GHz band and provides secure data transmission with "Enhanced ShockBurst" protocol.
Advantages: High data speed, low power consumption, multi-channel (125 channels), cheap.Disadvantages: 2.4 GHz hardly passes through walls, if no PA / LNA (antenna) version range is limited, connection may break in noisy environments (Wi-Fi dense).
In Which Project Should Be Used? Drone remotes, wireless keyboard / mouse, short distance sensor networks.C. LoRa (Long Range - 433 / 868 MHz)LoRa (Long Range) is a spread spectrum modulation technology that can send data for kilometers with very low power consumption.Advantages: Incredible long range, ability to overcome obstacles (buildings, trees), low power consumption.Disadvantages: Data speed is very low, cost is high.
In Which Project Should Be Used? Agricultural IoT, long distance environment monitoring, smart city applications (water meter reading).Summary:
Which One Should I Choose in Which Project?"My budget is limited and I will just turn on a lamp remotely" -> 433 MHz"I will send lots of sensor data or high-speed data at short distance (indoor)" -> nRF24L01+"I will send sensor data from one end of neighborhood to other (or 5km in rural)" -> LoRa"I will make sensor working behind walls, with very low power, long battery life" -> LoRaConclusion
By correctly defining needs of your project (range, data density, budget), you can turn to one of these three options.
For simplicity and low cost 433 MHz, for speed and efficiency nRF24L01, for long distance and stability LoRa is most suitable solution.
For RF modules: https://www.karinaelektronik.com/
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