HOW DOES IT WORK?

NeoMesh 2 Click is based on the NC2400, a wireless Mesh network module from NeoCortec. Besides being controlled by the host MCU, NeoMesh 2 Click can be used as a standalone device. You can configure the module over the System API (SAPI), a UART-based interface with hardware flow control. This interface is configured to ensure direct compatibility with the FTDI serial to USB cable. When using the NeoMesh 2 Click as a standalone board, the application interface of the NeoMesh module can be easily accessed through the pin header located at the side of the module. There are eight pins, six in the header labeled P2-7, which allows you to use up to 6 channels of 12-bit ADC, GPIOs, I2C sensors, and UART application APIs. Specific pins of this header can be used to interface with an external microcontroller through UART.

The module also can be configured wirelessly. At the bottom side, there is an unconnected WES jumper. You can use the Wireless Encrypted Setup by connecting it, but only if it is already configured through the WES procedure. Every WES channel has a specified AES 128 encryption key. Just beside is another jumper, VCC, this one connected. The NeoMesh 2 Click is optimized for ultra-low power operation and allows operation on small batteries for several years. If you want to make an ultra-low power node, consider using the NeoMesh 2 Click with some low-power development board with battery management, such as the Clicker 2 series or something similar. This scenario is ideal where the node can send data infrequently and the payload size is small.

NeoMesh is a wireless system designed with versatility in mind, allowing users to build products in many different application areas. This system can handle data transmission, lost neighbor nodes, moving nodes, and more. Data transmission through the network is done sequentially from node to node until the data reaches its destination. There are three types of NeoMesh devices: coordinator, router, and end device. You can configure your device according to your needs.

NeoMesh 2 Click uses a standard UART serial interface to communicate with the host MCU, with commonly used UART RX and TX pins and a transfer speed of 115200bps. Hardware control flow is available through the CTS pin. You can also use an I2C interface as a virtual UART. The I2C interface can be enabled over the I2C SEL jumper. While disabled, you can use the WUP pin to indicate the WakeUp activity state of the module; otherwise, the WUP function is unavailable. The module can be reset over the RST pin. The generic application activity is indicated over the APP pin with logic Low state when active. If the Wireless Encrypted Setup JP2 jumper is closed, you can enable the WES client over the WES pin.

This Click board™ can be operated only with a 3.3V logic voltage level. The board must perform appropriate logic voltage level conversion before using MCUs with different logic levels. Also, it comes equipped with a library containing functions and an example code that can be used as a reference for further development.

SPECIFICATIONS