Wireless sensor network nodes are deployed in the places that are difficult to reach and maintain. Once a failure of sensor nodes occurs, debugging interaction depends on the network infrastructure. However, some wireless communication malfunctions very lead to sensor nodes lost from the network. Traditional debugging interactions based on the networks become invalid. In addition, due to the low-cost hardware structure of the sensor node, it is hard to provide additional interactions. To this end, this paper mines the potentialities of visible light sensor and light emitting unit and realizes a mixed-duplex debugging interaction system (DIS) based on visible light communication. Moreover, for the downlink of DIS, the sensing delay of ambient light sensor decreases the data transmitting rate. A compressed dual-header pulse interval modulation to the increase data transmitting rate is presented. And also, for the uplink of DIS, the light emitting unit of sensor node cannot match the image frame of camera generation, so a frame synchronization applied in camera rolling shutter mechanism is presented. The experiment results illustrates that the throughput of CDH-PIM is 11.09% higher than that of DH-PIM, and the energy consumption is reduced by 8.70%. The uplink frame synchronization scheme can achieve a data transfer rate of 600 b/s at 30 fps.