Wireless SUN Click Board™

Product Code: MIKROE-5338

How Does The Wireless SUN Click Board™ Work? The Wireless SUN Click Board™ is based on the BP35C5, an ultra-compact Wi-SUN FAN compatible wireless communication module from Rohm Semiconductor. The BP35C5 has been certified by the Radio Law of ARIB and FCC, so it can be used in Japan and the United States operating at the frequency of 920MHz with a binary GFSK modulation method. It also includes a Wi-SUN software stack that enables operation at different transmission modes (20, 10, or 1mW) for high efficiency. In addition, since it has a built-in security function and supports communication encryption and security key update on the module side, it can perform secure communication efficiently without complicated control. As mentioned before, this module uses the Wi-SUN FAN (Field Area Network) mesh networking protocol, consisting of a parent repeater called Border Router, a repeater called Router, and a terminal called Leaf. It can cover a wide range because of its relay function (hopping function).

That's why it is possible to build a mesh network of up to 1000 units - multi-hop mesh networks supporting channel hopping with the ability to avoid radio interference by automatic routing (ability to switch routes automatically). This feature makes it suitable for social infrastructure applications such as traffic lights and street lights, building a remote management system that covers the entire city. The Wireless SUN Click Board™ communicates with MCU using the UART interface with commonly used UART RX, TX, and hardware flow control pins UART CTS and RTS (Clear to Send and Ready to Send). It operates at 115200 bps by default configuration to transmit and exchange data with the host MCU. Besides, additional onboard test points TP1 and TP2 offer users full support of debugging and programming capabilities through a Serial Wire Debug interface for programming and debugging, available through the SWD interface pins (SWCK and SWD). In addition to the appropriate interfaces, this Click board™ also has some additional features. A Reset button routed to the RST pin on the mikroBUS™ socket puts the module into a Reset state. At the same time, a blue LED indicator labelled STATUS represents a broadcast transmitting status LED indicator. The Wireless SUN 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. However, the Click board™ comes equipped with a library containing functions and an example code that can be used, as a reference, for further development. SPECIFICATIONS Type Sub-1 GHz Transceievers Applications Can be used for social infrastructures such as traffic lights and street lights, smart buildings, and logistics On-board modules BP35C5 - ultra-compact Wi-SUN FAN compatible wireless communication module from Rohm Semiconductor Key Features Wi-SUN FAN certified, supports multi-hop mesh network and channel hopping, high data rates, adjustable transmission power, built-in Wi-SUN FAN software stack, and more Interface UART Compatibility mikroBUS Click board size L (57.15 x 25.4 mm) Input Voltage 3.3V PINOUT DIAGRAM This table shows how the pinout of the Wireless SUN Click Board™ corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns). Notes Pin Pin Notes NC 1 AN PWM 16 NC Reset RST 2 RST INT 15 RTS UART RTS UART CTS CTS 3 CS RX 14 TX UART TX NC 4 SCK TX 13 RX UART RX NC 5 MISO SCL 12 NC NC 6 MOSI SDA 11 NC Power Supply 3.3V 7 3.3V 5V 10 NC Ground GND 8 GND GND 9 GND Ground ONBOARD SETTINGS AND INDICATORS Label Name Default Description