At this moment the 802.11x wireless network are wrangling, the 802.15.4 WPAN wireless network with the different purpose and characteristic is becoming to another focus. We implement the partial MAC and PHY layer of 802.15.4 WPAN used by micro control unit. We can observe and simulate the 802.15.4 WPAN communication procedure by a external PC. According to our implementation, we got some suggestions and conclusions.