Parking guide system indoor LED parking direction display rs485

1. function description

 TDM-730-I is four inches digital display receiving data in data communications, RS485 communication, setting address through changing DIP, the agreement is the TENET screen agreement.

2.Connection

 j3 to the dc power supply, 5v j4 for connecting RS485 data communications, S1 is to set the set the  address, the fourth one is the lowest can set 16 pieces of address, the initial address is 0x31, address values= 0x31 +DIP value.

3. If it is more, to keep one of the screen of the resistance is 120 euro, the other match of the resistance of 120 euro the undesirables

4. Protocol

the protocol of four inches Nixie tube

1. 00H  is the leading flag of the  data stream

2. screen number is the display address , ( the address should be consistence with the Nixie tube address that is set by DIP) can set it

 3. one screen , one  speed two second, direct display,  four bytes of yellow can be any  value but need more than  30h,

 4. it is eight characters, because of the screen shows only four numbers, so 4 bytes beforeight bytes can be  any  byte but also more than 30H, the later four bytes show the car slots, also the screen show the car slots according to the four bytes