Cy2196R wireless data receiving module is a low-power, high-performance wireless data receiving module. The module supports synchronous and asynchronous serial communication mode. The module adopts 2.4GHz ISM band, the working frequency range is 2.402GHz~2.480GHz, supports 11 channels, and the baud rate supports 1200~115200 bps. The module supports automatic frequency search function, which can automatically search for an empty channel in 11 channels and automatically switch to the channel for data communication. The module adopts SPI bus interface, connects with the main controller through SPI bus, and the main controller configures module parameters and reads module data through SPI bus.
This manual provides the electrical characteristics and pin assignments of the Cy2196R wireless data receive module. It details the VCC supply requirements, pin functions such as RXD, TXD, RTS, CTS, and enable signals, and explains how to connect the module to a host MCU.
Operational instructions cover asynchronous and synchronous serial modes, frequency channel selection across 433 MHz, 868 MHz and 913 MHz bands, and the ultra‑low‑power standby mode that reduces current consumption to below 1 µA. The document also includes example wiring diagrams for MCU integration. This manual is written in Chinese.
| Supply voltage (VCC) | +3.4 V to +4.2 V |
|---|---|
| Minimum supply current | 30 mA |
| Default baud rate | 19200 bps (configurable) |
| RTS output drive capability | Maximum 20 mA load |
| 433 MHz band frequency range | 430.26 MHz – 439.71 MHz |
| Standby current | < 1 µA |
The module operates from a VCC supply of +3.4 V to +4.2 V.
RTS is on the pin labeled "RTS , 請求朋送端" and CTS is on the pin labeled "CTS , 旬近朋送端".
The default baud rate is 19200 bps, and it can be configured to other rates as needed.