A new type multifunction flashlight based on SQ680S and μ C/OS-II

For the needs of pictures, audio and video recordings of the questionable regions or events when security personnel patrol at night, a cost-effective multi-functional flashlight based on SQ680S chip was designed. SQ680S chip has high integration, stable performance. It can provide a good function and quality of multimedia processing functions. The system adopts OV5653 camera to take photos and record videos and provides a 2.4-inch TFT color screen thus to make it easier for the site operator to see the effect. The perfect power supply circuit and simple mode of operation are also designed. System software uses the μC/OS-II real-time operating system to support multi task implementation, improves the recording and playback function, and increases the utilization efficiency of storage space by improving the circulation recording technology. The application test shows that the system can stably and smoothly complete the expected function and it has high quality recording. The pictures and videos it takes are clear and with bright color, strong sense of hierarchy and high contrast. It can better meet practical application needs.