 Accordingly, there exists a technical niche for simpler protocols, of which MiWi is a proprietary example.The MiWi protocol is a small foot-print alternative (3K-32K) to Zigbee (40K-180K), which it useful for cost-sensitive applications with limited memory.Although the MiWi software can all be downloaded for free from its official website, it is a proprietary solution that requires use with only with Microchip microcontrollers.