1.You must have a bottle of refreshing oil around you. When you are sleepy, you can apply a little oil on your temples, so that you won’t be sleepy and you will feel energetic when driving. 2. The second is to drink coffee, because coffee is also helpful to refresh. You can take coffee powder…

1. our device Our driver status monitor system has 2 kinds of output: 1). I/O output it is only a high/low voltage output, you can get only the alarm signal,the connection is easy. the LS-803 or DSM02 output wire always have 3.3V under normal status, but when it’s triggered, this wire will have 0 V…