hi um,
I would select the GGA message at 9600 baud for the GPS unit, at 1second rate.
Does the radio have a RS232 input.?
E

I have set it to 1 message per 2 seconds and baud rate 9600. And yes radio link have rs232 connection

 

Like this, I know this is wrong but I tried to check what will happen. Now I need to make some delay function here or make a one string to receive for all data.

I think you are going to have to buy or build a mux (multiplexer) to make this work.

 

hi um,
Clips from your manuals.
E

 

hi um,
Is the Atmega onboard the boat.??

E

If Yes, then we will use all 4 pairs of the TX/RX pins for the RS232 in/out

 

hi um,
As I stated, the GPS message and Sonar message and motor RPM message will arrive at the Atmega
asynchronously.

So you will have to assign a priority status to each Serial input signal source.

I would suggest a priority of GPS > Sonar > Motor > Battery.

What equipment do you have on the shore based receiving end of the project.?

E

 

hi um,
As I stated, the GPS message and Sonar message and motor RPM message will arrive at the Atmega
asynchronously.

So you will have to assign a priority status to each Serial input signal source.

I would suggest a priority of GPS > Sonar > Motor > Battery.

What equipment do you have on the shore based receiving end of the project.?

E

Yes that is what I want too priority of messages. One more question, can my ATmega 328p handle all these information at once?

 

Günaydın ume,
Is your ATmega a 2560 version, if Yes, it has 4 TX/RX ports.
I assume the ATmega will be onboard the boat.???

Is your echo sonar working at 10 depth soundings per second.??

E

 

it is ATmega328P-PU version. and for echo sounder it is 10 depth soundings per second

 

hi um,
I would suggest when you receive the GPA message,
$GPGGA,123519,4807.038,N,01131.000,E,1,08,0.9,545.4,M,46.9,M,,*47<crlf>

you parse out the Time and the N and E coordinates.
Add the Sonar , Motor and Battery to form a new message
$123519,4807.038,N,01131.000,E,12.34,D,1234,M,12.3,V<crlf>
and transmit this message on radio link.
E

NOTE: Update
Please post a photo image of your Atmega PCB.

Re: Different versions of the ATMega328P-PU??
Brand new ATmega328P-PU chips do not come with the same fuses programmed as an Arduino-programmed chip, and of course they do NOT have any bootloader programmed, so they're not ready to be used with the Arduino IDE unless you also have a programmer. (Unless you specifically bought chips WITH a bootloader already programmed.)

 

The second small IC is MAX232.

 

it is ATmega328P-PU version. and for echo sounder it is 10 depth soundings per second

Is the ATmega on the boat?

 

Yes Sir. It is only for boat. it is only controlling the boat

 

hi ume,
Checking that PCB, it is very basic, I would it say it is not suitable for your project.

BTW: I searched for Kordil ATmega PCB, no luck, all I got was Porn site......

E

Update:
Buy one of this type.
https://www.ebay.co.uk/itm/Arduino-Mega2560-R3-Compatible-Board-with-CH340G-UK-Stock/393110287475?_trkparms=ispr=1&hash=item5b8732f473:g:3nUAAOSwcL5gXcgY&amdata=enc:AQAFAAACcBaobrjLl8XobRIiIML1V4Imu%2Fn%2BzU5L90Z278x5ickkyMJZWL%2BqFSgQ3TOOe%2FNr7tH%2FjayHBT7wb94XTFzZ%2BuWQeUwnR7nLry6V0tJZROiY%2BwyUm5XhrlfO%2FoX8QUmk5ahup2Mkt5yra9k%2BsESwWfUhRfft%2FVpAazImi7UxLfGiT1I9pDl6V25ZK6M8wqSVgTW6999rXCI3FJm8HskVaHJM%2FINL1%2BvX5A92DNe2aaZYaeSwdoMqa8HZ5KEJzomMFiUwHwXU1%2BPxFpneNNz6qmwMa5SdJZzjcMZkuHgRV0dAmZ3mOGihnKCd1yp2hB7RQNamZnlm7lf8uK5NyNwE5ZlF0EJ1B3rVqie1qZB%2BQqpH1l2rhWx62mzfuPocETkIF6AR77p4dTMtVp%2BaIbZ93dyBLa89ESwzLPGOxuH1sX3UrkNCw1j3zHo3K%2FOFwdaDYGyYDabOlW%2BLtgS5Rm377yLn8Zy30mBjhsbNnnJFaYowCtS348taILatoa1dbY3v7cSncqwhaZx7lSdjc%2FbaPpNxtC9dpHDSq1GT7ywLs1gqj82DInKUJdFdWDNvkAFcFCyWKqODeT0cWQ1ArUhmw3TIQvhnwrt6CQEwGF30ES0bBJ36UtPPxz4Rv7Vh2gamCMwFz6lACN%2BUJFgf3if3QbeupfAsX%2F7mIAYmNQFX3MAlxfegwRuZMAjnamIIe5onyO%2FCeaSHc93n3mM96owygLk8ZwEyYPw3Q9THb%2FBuCj%2FUFBzU9iPwCyRWvLjmqbafFZD5IfNYhfT6RxZPmmgmsGWURUV2pA5oPyicl6Io2BvBOqYZk0rvBb2WLieReqJkvw%3D%3D|cksum:3931102874756db45ceb30444ea6b5cbc936045f776d|ampidL_CLK|clp:2334524

 

hi ume,
Checking that PCB, it is very basic, I would it say it is not suitable for your project.

BTW: I searched for Kordil ATmega PCB, no luck, all I got was Porn site......

E

Update:
Buy one of this type.
https://www.ebay.co.uk/itm/Arduino-Mega2560-R3-Compatible-Board-with-CH340G-UK-Stock/393110287475?_trkparms=ispr=1&hash=item5b8732f473:g:3nUAAOSwcL5gXcgY&amdata=enc:AQAFAAACcBaobrjLl8XobRIiIML1V4Imu%2Fn%2BzU5L90Z278x5ickkyMJZWL%2BqFSgQ3TOOe%2FNr7tH%2FjayHBT7wb94XTFzZ%2BuWQeUwnR7nLry6V0tJZROiY%2BwyUm5XhrlfO%2FoX8QUmk5ahup2Mkt5yra9k%2BsESwWfUhRfft%2FVpAazImi7UxLfGiT1I9pDl6V25ZK6M8wqSVgTW6999rXCI3FJm8HskVaHJM%2FINL1%2BvX5A92DNe2aaZYaeSwdoMqa8HZ5KEJzomMFiUwHwXU1%2BPxFpneNNz6qmwMa5SdJZzjcMZkuHgRV0dAmZ3mOGihnKCd1yp2hB7RQNamZnlm7lf8uK5NyNwE5ZlF0EJ1B3rVqie1qZB%2BQqpH1l2rhWx62mzfuPocETkIF6AR77p4dTMtVp%2BaIbZ93dyBLa89ESwzLPGOxuH1sX3UrkNCw1j3zHo3K%2FOFwdaDYGyYDabOlW%2BLtgS5Rm377yLn8Zy30mBjhsbNnnJFaYowCtS348taILatoa1dbY3v7cSncqwhaZx7lSdjc%2FbaPpNxtC9dpHDSq1GT7ywLs1gqj82DInKUJdFdWDNvkAFcFCyWKqODeT0cWQ1ArUhmw3TIQvhnwrt6CQEwGF30ES0bBJ36UtPPxz4Rv7Vh2gamCMwFz6lACN%2BUJFgf3if3QbeupfAsX%2F7mIAYmNQFX3MAlxfegwRuZMAjnamIIe5onyO%2FCeaSHc93n3mM96owygLk8ZwEyYPw3Q9THb%2FBuCj%2FUFBzU9iPwCyRWvLjmqbafFZD5IfNYhfT6RxZPmmgmsGWURUV2pA5oPyicl6Io2BvBOqYZk0rvBb2WLieReqJkvw%3D%3D|cksum:3931102874756db45ceb30444ea6b5cbc936045f776d|ampidL_CLK|clp:2334524

Sir this circuit is designed by me and Kordil is my company name.

 

So what should I do now? Kindly tell me.

 

This circuit shows me RPM of motor and battery voltage.

 

So what should I do now? Kindly tell me.

You need more serial ports so you can handle the various serial devices. You could redesign your board to include them, or you could buy one that has all the ports. Either way, you need places to connect your peripherals.

 

hi ume,
I will let Yaakov advise you, you are going to get confused by too many idea's being posted.

Please let me know how your project develops.
E

 

hi ume,
I will let Yaakov advise you, you are going to get confused by too many idea's being posted.

Please let me know how your project develops.
E

Eric: I will standby. I was trying to be complementary, not replace your advice which I can't duplicate.

 

Sir, I know I am not good at programming. First of all really sorry to disturb you.
What I want is GPS and Echo sounder messages and also motor and battery messages to be shown at one place.
As you know I am using a radio link. so what should I do now?