/*************************************************************
You’ll need:
- Blynk IoT app (download from App Store or Google Play)
- Arduino Uno board
- Decide how to connect to Blynk
(USB, Ethernet, Wi-Fi, Bluetooth, ...)
There is a bunch of great example sketches included to show you how to get
started. Think of them as LEGO bricks and combine them as you wish.
For example, take the Ethernet Shield sketch and combine it with the
Servo example, or choose a USB sketch and add a code from SendData
example.
*************************************************************/
// Template ID, Device Name and Auth Token are provided by the Blynk.Cloud
// See the Device Info tab, or Template settings
#define BLYNK_TEMPLATE_ID "TMPLL4ptBs3H"
#define BLYNK_DEVICE_NAME "Quickstart Device"
#define BLYNK_AUTH_TOKEN "MyAuth"
// Comment this out to disable prints and save space
#define BLYNK_PRINT SwSerial
#include <SoftwareSerial.h>
SoftwareSerial SwSerial(10, 11); // RX, TX
#include <BlynkSimpleStream.h>
char auth[] = BLYNK_AUTH_TOKEN;
void setup()
{
// Debug console
SwSerial.begin(115200);
// Blynk will work through Serial
// Do not read or write this serial manually in your sketch
Serial.begin(9600);
Blynk.begin(Serial, auth);
}
void loop()
{
Blynk.run();
// You can inject your own code or combine it with other sketches.
// Check other examples on how to communicate with Blynk. Remember
// to avoid delay() function!
}
@echo off
setlocal EnableDelayedExpansion
REM === Edit these lines to match your need ===
set COMM_PORT=COM1
set COMM_BAUD=9600
set SERV_ADDR=blynk.cloud
set SERV_PORT=8080
REM === Edit lines below only if absolutely sure what you're doing ===
rem Get command line options
set SCRIPTS_PATH=%~dp0
:loop
IF NOT "%1"=="" (
IF "%1"=="-c" set COMM_PORT=%2& SHIFT & SHIFT & GOTO :loop
IF "%1"=="-b" set COMM_BAUD=%2& SHIFT & SHIFT & GOTO :loop
IF "%1"=="-s" set SERV_ADDR=%2& SHIFT & SHIFT & GOTO :loop
IF "%1"=="-p" set SERV_PORT=%2& SHIFT & SHIFT & GOTO :loop
CALL :usage
GOTO :eof
)
rem Find ports
set PORTS=
for /f "tokens=4 delims=: " %%A in ('mode^|findstr "COM[0-9]*:"') do IF not [%%A] == [] set PORTS=!PORTS! %%A
set PORTS=!PORTS:~1!
rem Check port
rem Skip check if no ports at all - Windows bug?
if not "x%PORTS%"=="x~1" (
if "x!PORTS:%COMM_PORT%=!"=="x%PORTS%" (
echo %COMM_PORT% not found, or may be busy.
set /p COMM_PORT="Select serial port [ %PORTS% ]: "
)
)
rem Create exe
if not exist "%SCRIPTS_PATH%\com2tcp.exe" (
copy "%SCRIPTS_PATH%\com2tcp.bin" "%SCRIPTS_PATH%\com2tcp.exe" > NUL
)
rem Do the job
echo Connecting device at %COMM_PORT% to %SERV_ADDR%:%SERV_PORT%...
rem Try resetting board
rem mode %COMM_PORT%:%COMM_BAUD%,N,8,1 >nul
:restart
"%SCRIPTS_PATH%\com2tcp.exe" --baud %COMM_BAUD% --ignore-dsr \\.\%COMM_PORT% %SERV_ADDR% %SERV_PORT%
echo Reconnecting in 3s...
timeout /T 3
goto restart
goto:eof
:usage
echo.
echo. This script redirects serial communication to the server.
echo.
echo. You can specify port, baud rate, and server endpoint like this:
echo. blynk-ser.bat -c ^<serial port^> -b ^<baud^> -s ^<server^> -p ^<port^>
echo.
echo. The defaults are:
echo. -c /dev/ttyUSB0 (on Linux)
echo. COM1 (on Windows)
echo. /dev/tty.usbserial (on OSX)
echo. -b 9600
echo. -s blynk.cloud
echo. -p 80
echo.
echo. If the specified serial port is not found, it will ask to enter another one.
echo. The script also tries to reestablish connection if it was lost.
goto:eof
Not really sure what that means.
The idea behind those line of code is to create an additional serial port that can be used to view the debug serial output from the device (which can’t be done via the regular serial port, as it’s being used for your Blynk connection).
To view this you need an FTDI adapter, and you would also need to decrease the baud rate of that SoftwareSerial port, as you hardware isn’t powerful enough to simulate a serial port using software with baud rates any higher than 9600 baud.
More info here…
Without sight of that debug serial data it’s difficult to know what’s happening.
I would suggest changing the port to 80 rather than 8080 though.
