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224 Kevin 1 
#include <xc.h>
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#include "main.h"
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#include "RN-42.h"
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#include "UART.h"
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#include <string.h>
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extern char LED_G_ON;
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extern char LED_R_ON;
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void RN42_Init(void) {
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    if (RN42_Enter_CMD_Mode()) {
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        // Set authentication to open mode
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        char sa[] = "SA,0\r";
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        RN42_Send_CMD(sa, 5);
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        // Optimize for low latency rather than throughput
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        char sq[] = "SQ,16\r";
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        RN42_Send_CMD(sq, 6);
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//        // Allow continuous configuration
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//        char st[] = "ST,255\r";
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//        RN42_Send_CMD(st, 7);
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//        // Set page scan window to maximum
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//        char sj[] = "SJ,800\r";
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//        RN42_Send_CMD(sj, 7);
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//        // Enable connection status strings
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//        char so[] = "SO,!\r";
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//        RN42_Send_CMD(so, 5);
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        // Reboot with the new settings
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        char r[] = "R,1\r";
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        RN42_Send_CMD(r, 4);
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    }
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}
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char RN42_Enter_CMD_Mode(void) {
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    char ret, buffer[10];
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    char cmd_mode[] = "$$$";
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    UART_Write(cmd_mode, 3);
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    __delay_ms(30);
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    ret = UART_Read(buffer);
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    if (ret == 5 && !strncmp(buffer, "CMD\r\n", 5))
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        return 1;
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    else
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        return 0;
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}
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void RN42_Exit_CMD_Mode(void) {
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    char ret, buffer[10];
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    char cmd_ret[] = "---\r";
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    UART_Write(cmd_ret, 4);
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    __delay_ms(30);
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    ret = UART_Read(buffer); // Exiting should return "END"
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}
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char RN42_Send_CMD(char *cmd, char length) {
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    char ret, buffer[10];
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    UART_Write(cmd, length);
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    __delay_ms(30);
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    ret = UART_Read(buffer);
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    if (ret == 5 && !strncmp(buffer, "AOK\r\n", 5))
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        return 1;
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    else
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        return 0;
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}
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char RN42_Connected_Status(void) {
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    if (RN42_Enter_CMD_Mode()) {
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        char ret, buffer[10], cmd[] = "GK\r";
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        UART_Write(cmd, 3);
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        __delay_ms(30);
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        ret = UART_Read(buffer);
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        if (ret == 7 && !strncmp(buffer, "1,0,0\r\n", 7)) {
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            RN42_Exit_CMD_Mode();
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            return 1;
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        } else {
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            RN42_Exit_CMD_Mode();
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            return 0;
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        }
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    } else {
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        return 0;
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    }
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}