Users - anfedres - SparkFun Electronics

OK, which is the real baud rate for the GT-511C3, 115200 or 9600? The datasheet says 9600, however, in the video application we can see clearly running with 115200.

Product SEN-11792 about 11 years ago

OK guys, I´ve seen that there is a lot of people out there struggling with this. I´m PIC user, I like it because it´s very cheap where I live. I like it Arduino too. Nonetheless, I wanna run this attached to a PIC.

First of all let´s start understanding the Protocol and how to send it. When I first read I noticed that part that it´s says Multibyte item is represented as Little Endian, according with some research that I did this mean that I have to send the LSB (Least significant Byte) first. Please, correct me if I´m wrong.

Command Packet (Command)

Command Start
0X55----> TYPE: BYTE 1----> Command Start Code1
0XAA----> TYPE: BYTE 2----> Command Start Code1

DEVICE ID (WORD)
0X01----> TYPE: BYTE 3----> Device ID: default is 0x0001, always fixed
0X00----> TYPE: BYTE 4----> Device ID: default is 0x0001, always fixed

PARAMETER (DWORD). In this case is the Parameter Open
0X00----> TYPE: BYTE 5----> PARAMETER
0X00----> TYPE: BYTE 6----> PARAMETER
0X00----> TYPE: BYTE 7----> PARAMETER
0X01----> TYPE: BYTE 8----> PARAMETER

COMMAND (WORD). OPEN
0X01----> TYPE: BYTE 9----> COMMAND OPEN
0X00----> TYPE: BYTE 10----> COMMAND OPEN

CHECKSUM (WORD). BYTE ADDITION, OFFSET 0 +….+ OFFSET 9
0X01----> TYPE: BYTE 11----> COMMAND OPEN
0X01----> TYPE: BYTE 12----> COMMAND OPEN

Guys, please. If I have a mistake, do not hesitate to point it out.

So far, it seems kind of easy. I haven´t try to program it yet. I´ll try this week. However, I do not yet which functions should I use to use with a PIC.

OK, I will be posting my progress. :dance:

Product SEN-11792 about 11 years ago

has anyone tried this module using PIC? I know that here is a lot of people how has tried? I just got mine and I want to start. Thank you.

Product SEN-11792 about 11 years ago

Saludos desde Colombia también. Estuve viendo que tuvieron éxito con este módulo. Bueno, apenas estoy empezando, pero la verdad. No se como enviar bien los paquetes, podrian ilustrarme con algo de código? Ha sido dificil encontrar algo con PIC, pues casi todo mundo está usando Arduino, lo bueno del PIC es que es barato, y fácil de manejar. Una ayuda de parte de ustedes me vendría muy pero muy bien Saludos.