Trådlöst

Trådlös data överföring
Trådlös kommunikation är överföring av data utan fysiska ledare (kablar), oftast via radiovågor, men även via ljus (IR/laser) eller ultraljud. Den används för att koppla samman enheter över korta eller långa avstånd – allt från fjärrkontroller till internetanslutna sensorer och mobilnät.
Moduler:
Sändare (TX): Omvandlar data till signaler och skickar ut dem.
Mottagare (RX): Tar emot signalerna och tolkar tillbaka till data.
Transceiver är en sammanslagning av transmitter (sändare) och receiver (mottagare).
Modul som både kan sända och ta emot data

Subcategories

315.000 MHz

Additional description

315.000 MHz RF modules provide a simple and cost-effective solution for short-range wireless communication. They are widely used in DIY electronics, Arduino and microcontroller projects, remote controls, alarm systems, wireless sensors, home automation, and industrial control applications.

This category includes transmitter modules, receiver modules, and complete transmitter/receiver sets operating at 315.000 MHz using ASK/OOK modulation. Most transmitters are compatible with all receivers in this category, allowing them to be mixed and matched according to your project requirements.

Receiver modules are available in both super-regenerative and superheterodyne versions. Superheterodyne receivers provide higher sensitivity, better selectivity, longer communication range, and improved resistance to interference.

For optimum range and reliability, use a 23.8 cm quarter-wave antenna or another properly tuned 315 MHz antenna. Actual communication distance depends on antenna design, supply voltage, data rate, surrounding environment, and radio interference.

These modules are ideal for transmitting digital data between microcontrollers and are compatible with many popular encoding chips and protocols, including EV1527, PT2262, SC2262, HS1527, and similar ASK/OOK devices.
433.92 MHz

433.920 MHz modules are wireless RF modules that operate in the 433 MHz ISM band. They are used for simple wireless communication between two devices and are commonly found in remote controls, alarm systems, garage door openers, sensors, and home automation applications. Most modules use ASK/OOK modulation and are available as standalone transmitters, receivers, or complete transmitter/receiver pairs. Receivers are either simple super-regenerative models or more sensitive superheterodyne models, offering longer range and better immunity to interference. For the best performance, use a 17.3 cm antenna, which corresponds to a quarter-wave antenna for 433 MHz. All modules in this category operate on the same frequency and are compatible with each other as transmitters and receivers.