RXB12 superheterodyne radio receiver module, using the French brand RF wireless data transmission receiver chip receiver module is a cost-effective high ISM band. Receiver sensitivity with high, low prices, making some low-end products to get rid of because of price reasons can only be used to limit the super-regenerative module, improved low-end wireless product stability and reliability, improved product quality and image enhanced product competitiveness. No external circuitry which can achieve wireless signal input to the data signal. Users need only a simple additional data decoding circuit, can easily achieve the development of wireless products. Product features: (1) receiver sensitivity reach -107dBm; (2) Operating frequency: 315 MHz; 433.92 MHz; (special frequency can be customized according to customer requirements) (3) Power supply voltage input range: 3.3V-5.5V; (4) Low power consumption, 5.0V @ 433.92MHz, 3.8-4.1mA; 5.0V @ 315MHz, 2.5-2.8mA; sustained data transfer rate to 2.4K of (Manchester encoding) (5) good selectivity and spurious radiation suppression capacity, ease through CE, Fcc international certification; (6) Good local oscillator radiation suppression, multiple receiver modules can work together (ie more than single income) and will not interfere with each other, used together does not affect the receiving distance. (7) Temperature range: -30-85 ℃ can work even in harsh ambient temperature; (8) Specifications: 29.9 * 8.5 * 4.6 (mm) Application: (1) car remote door switch (RKE); (2) remote control door opener; (3) wireless security alarm; (4) wireless doorbell; (5) Wireless Controller; (6) Wireless data transmission; Note: RXB12 module data output pin drive current is weak, if direct drive microcontroller, the microcontroller need the I / O ports can not pull-up or pull-down resistors on the microcomputer's internal pull-up or pull-down resistors should be provided in a disabled state.