433MHz ASK RF Module kit (RF transmitter STX882+ RF receiver SRX882)
433MHz ASK RF Module Kit (STX882 Transmitter + SRX882 Receiver) is a wireless communication module set designed for reliable short to medium-range data transmission. It operates at 433MHz (or 315MHz variants) using ASK (Amplitude Shift Keying) modulation, enabling simple and efficient wireless communication between microcontrollers. The STX882 transmitter offers high output power and stable signal transmission, while the SRX882 receiver ensures accurate data reception with good sensitivity. This module kit is widely used in remote control systems, wireless sensors, automation projects, and embedded communication applications due to its simplicity, low cost, and strong performance.
طقم وحدة RF بتردد 433MHz (المرسل STX882 والمستقبل SRX882) هو نظام اتصال لاسلكي يستخدم لنقل البيانات لمسافات قصيرة إلى متوسطة. يعمل بتقنية ASK (تضمين السعة) عند تردد 433MHz مما يتيح اتصالًا بسيطًا بين المتحكمات الدقيقة. يتميز المرسل STX882 بقوة إرسال عالية واستقرار جيد، بينما يوفر المستقبل SRX882 استقبالًا دقيقًا للإشارات. يُستخدم هذا الطقم في أنظمة التحكم عن بعد، وأجهزة الاستشعار اللاسلكية، ومشاريع الأتمتة والإلكترونيات المدمجة.
The 433MHz ASK RF Module Kit consists of two components: the STX882 high-power transmitter module and the SRX882 sensitive receiver module. This pair enables wireless communication between microcontrollers and embedded systems without the need for physical wiring.
The STX882 transmitter operates at 433MHz (or 315MHz depending on version) and uses ASK modulation to transmit digital signals. It is known for its high output power (up to ~50mW at 3.6V), stable frequency performance, and compact size. This makes it suitable for long-range wireless applications while maintaining low power consumption.
The SRX882 receiver module is designed to receive ASK signals with high sensitivity and stability. It supports reliable decoding of transmitted data and is commonly used in conjunction with encoder/decoder ICs or microcontroller-based protocols.
Together, these modules form a simple and effective wireless communication system widely used in remote controls, home automation, industrial monitoring, alarm systems, and IoT projects.
Specifications
| Parameter | STX882 Transmitter | SRX882 Receiver |
|---|---|---|
| Operating Frequency | 433MHz / 315MHz | 433MHz / 315MHz |
| Modulation Type | ASK | ASK |
| Power Supply | Typically 3.3V – 5V | 3.3V – 5V |
| Transmit Power | Up to ~50mW @ 3.6V | N/A |
| Sensitivity | N/A | High sensitivity reception |
| Data Interface | Digital input | Digital output |
| Antenna Interface | ANT pin (50Ω antenna) | ANT pin (50Ω antenna) |
| Operating Mode | Continuous / Data driven | Continuous receive |
| Size | Compact module | Compact module |
| Temperature Stability | High | High |
Pin Configuration
STX882 Transmitter
| Pin | Function |
|---|---|
| ANT | Antenna connection |
| DATA | Digital data input |
| VCC | Power supply positive |
| GND | Ground |
SRX882 Receiver
| Pin | Function |
|---|---|
| ANT | Antenna connection (50Ω) |
| GND | Ground |
| VCC | Power supply positive |
| CS | Enable pin (High or floating = ON, Low = Sleep) |
| DATA | Digital output |
| GND | Ground |
| ANT | Antenna connection |
Applications
- Wireless remote control systems
- Home automation projects
- Wireless sensor networks
- IoT communication systems
- Alarm and security systems
- Remote switching devices
- Industrial monitoring systems
- Robot control (wireless communication)
- Smart home devices
- Data transmission between microcontrollers
- Garage door and gate controllers
- DIY electronics and Arduino projects