The DO100 parking occupation sensor is designed for position detection, especially for opensky parking position detection.
The standard version is with LoRa wireless module, which transmit the position occupation status to the gateway or internet. It is optional for frequency 433Mhz, 868Mhz (Europe), 915Mhz(USA). Furthermore it is optional with NB-IoT wireless.
As it is with algorithm of low power consumption, the internal battery work for more than 3 years. The IP68 level ensure the endurable working outdoor.
Realtime status of parking bay Guidance of parking Collect parking fee in high accuracy and efficiency
Protocol & Test
For the RS232 communication, Baudrate 9600 or 115200, data bit 8, stop bit 1, no odd/even checksum.
Header/Tail Header 1 byte，$ in ascii and in hex 0x24 for the request to sensor. And * in ascii and in hex 0x2A for the reply from sensor. Tail 2 byte, in hex 0x0D 0A. Command Refer to command list at Part 3. For command in reply is same as the command in request. ID 001~FFF
Content 0~32 bytes. Checksum Sum of bytes from header to id, then select the low 8 bit, finally convert to ASCII and show in Hex. E.g. If sum is 0x0356, then low 8 bit is 0x56, to ascii, the value is 56(0x35 0x36 in Hex).
Examples Generally the sensor automatically report the status change once the occupation status changed. If the server want to know the current status, it can send out request to ask for sensor to reply. The sensor will reply in the reply window. (maybe not instantly) Request for sensor 01 $RO00156 Reply from sensor *RO001187 1 is the status, It is occupied. 0 is not occupied.