Description

433 MHz RF Transmitter STX882 and Receiver SRX882

This set includes an STX882 ASK transmitter, an SRX882 superheterodyne receiver, and an antenna.

The source describes the STX882 as a compact transmitter with high output power and low harmonics. It claims up to 50 mW output at 3.6 V and says the data pin can connect directly to a microcontroller. The source describes the SRX882 as a low-power superheterodyne receiver and likewise says its data output can connect directly to a microcontroller.

Pin diagram

Pin labels listed in the source:

1: ANT — connect a 50-ohm antenna
2: GND — power ground
3: VCC — positive supply
4: CS — enable pin; the source says floating or high enables operation and grounding selects sleep
5: DATA — data input
6: GND — power ground
7: ANT — connect a 50-ohm antenna

The source presents these labels together for the module set. Confirm the pinout and signal direction against the markings and datasheet for the exact transmitter or receiver board before wiring.

Source-listed features

Frequency: 433 MHz
Modulation: ASK/OOK
Low standby current: less than 1 µA (source claim)
Low self-radiation (source wording)
Frequency stability and reliability (source claims)
Antenna dimensions: 36 × 5.5 mm (H × W)

SRX882 receiver specifications as listed by the source

Supply voltage: 2.4–5.5 V
Operating temperature: −30 to 85 °C
Latency: 20 ms at 315 MHz; 9 ms at 433 MHz
Current consumption: 2.5 mA at 315 MHz; 2.8 mA at 433 MHz
Frequency range: 315–433.92 MHz
Sensitivity: −110 dBm at 1.2 Kbps
Air data rate: 0.1–9.6 Kbit/s
Receiver bandwidth: 200 kHz
Dimensions: 35 × 10.5 × 6 mm
Weight: 2 g

Radio-frequency rules vary by location and application. Check the applicable local requirements before transmitting. This product is currently out of stock.