315/433MHZ RF transmitter and receiver Module

315/433MHZ RF transmitter and receiver Module For arduino/ARM/MCU WL

Description

Super-regenerative transmitter module uses 00K amplitude modulation, good consistency of product, high cost performance. Sound emission head adopts table (SAW) oscillator, the frequency stability ,small temperature drift.In an environment where the temperature fluctuates between -25°C to +85°C, it exhibits only a frequency drift of three ppm/°C, making it especially suitable for remote control and data transmission systems. The transmitter module can be paired with off-the-shelf fixed code or learning code frequency receiving modules, or it can be integrated into a complete wireless receiving module. However, utilizing these products may require secondary development and the use of decoding chips, microcontrollers, or the 2272 chip.

The super-regenerative receiver module utilizes LC oscillation circuit, offering TTL level data signals via OOK amplitude modulation for direct decoding. It ensures consistent quality and cost-effectiveness, widely used in wireless remote controls for both fixed and learning code systems. With a wide bandwidth of ±10 MHz, it operates on a 5V DC power supply (adjustable from 3-8V in specific cases). The static working current is typically 4 mA, but can be lowered to 1.5 mA at the cost of reduced sensitivity. By default, the module outputs noise, but it can be adjusted for noise elimination, albeit with sensitivity reduction.

Parameters

Receiving Module

Transmitting Module

Pin Description