SPECIFICATIONS

Description
1. Core positioning: CardPuter's exclusive dual RF expansion solution
 
This module is a 2-in-1 RF expansion board designed specifically for the M5stack CardPuter (card computer), integrating two classic wireless chips, CC1101 (433MHz) and NRF24L01 (2.4GHz), allowing the CardPuter device to support two mainstream low-power wireless protocols simultaneously without the need for additional module replacement, greatly expanding the wireless communication capabilities of the card computer.
 
2. Dual band coverage, suitable for multi scenario communication
 
-CC1101 channel: supports sub GHz frequency bands such as 433MHz, suitable for long-distance, low-power wireless communication, and can be used for remote control, sensor data acquisition, wireless meter reading, smart home and other scenarios;
-NRF24L01 channel: operates in the 2.4GHz global license free ISM frequency band, suitable for high-speed, short-range bidirectional communication, commonly used in wireless keyboard and mouse, drone, IoT nodes, wireless serial ports and other scenarios;
The dual module design allows CardPuter to be compatible with two different frequency bands and protocols of wireless devices simultaneously, covering the communication needs of the vast majority of IoT and DIY projects.
 
3. Plug and play modular design
 
The module adopts a PH2.0 interface and cable connection that matches CardPuter, which does not require complex soldering and can be directly plugged in to complete hardware connection. At the same time, it retains an independent SMA antenna interface and is paired with a high gain omnidirectional antenna, greatly improving the transmission and reception distance and stability of wireless signals. Compared with onboard antennas, it has a significant performance improvement.
 
4. Open source eco-friendly, low development threshold
 
The module is fully compatible with the open-source development environment of M5stack and supports mainstream development platforms such as Arduino and UIFlow. The official/community provides mature CC1101 and NRF24L01 driver libraries and sample code, allowing developers to quickly get started and easily achieve wireless transmission, data transparency, remote control and other functions. It is suitable for electronic DIY, IoT development, embedded learning and other scenarios.
 
5. High integration, saving space and costs
 
Integrating two independent RF modules on a small board not only saves CardPuter's limited expansion interface, but also avoids the additional cost of purchasing two independent modules, while maintaining CardPuter's portable and compact design features. It is a cost-effective and highly integrated solution for CardPuter wireless projects.