Hola German. Fantástica página. Me va a ayudar mucho a testear los ST50 que llevo instalados. Una pregunta. He visto un esquema similar del adaptador seatalk-TTL y no lleva el 7805. Asimismo en tu esquema tampoco lo lleva. Si lo hace la placa y el circuito que muestras en el video. ¿Cual es su función? Las salidas RX TX las utilizaría con un arduino. Gracias
La función del 7805 es alimentar el Arduino y la pantalla LCD, asi que, con la alimentación 12v que viene del seatalk (cable rojo) no necesitas nada más, (es conveniente ponerle un pequeño radiador al 7805).
Este adaptador TTL además de cambiar el voltaje de la señal, también la invierte, fíjate que la señal Seatalk (cable amarillo) es 12v-0v-12v (no-invertida) y la del arduino es 0v-5v-0v (invertida).
HOla, Gracias pro compartir tu proyecto, me resulta muy interesante y quiero replcarlo. me puedes decir que libreria de LCD i2C utilizaste ? no logro compilar el proyecto en el IDE de Arduino
Hi, thanks a lot for sharing your projects. I am a newbie of playing with Arduino and is now studying how to use Arduino to send out Seatalk data. In your reply to comment on 2May2017, you stated that “Este adaptador TTL además de cambiar el voltaje de la señal, también la invierte, fíjate que la señal Seatalk (cable amarillo) es 12v-0v-12v (no-invertida) y la del arduino es 0v-5v-0v (invertida).” (translated by Google: “In addition to changing the signal voltage, this TTL adapter also reverses it, note that the Seatalk signal (yellow cable) is 12v-0v-12v (non-inverted) and that of the Arduino is 0v-5v-0v (inverted).”) However, from my understanding, Arduino TTL is non-inverted (i.e. 3.3/5v high, 0v low, idle bit high, start bit low) and for Arduino TTL to send data via Seatalk, we only need to scale up the voltage. Can you please shed me some light what I misunderstood? Thank you.
Thank you very much for your reply and confirmation that my understanding regarding the Arduino TTL voltage (i.e. 0v for 0, 5v for 1) is correct. However, your reply also stated that the voltage of Seatalk is bit 0 = 12v bit 1 = 0v! This is contradicting with what I got from thomasknauf.de in which it is stated that “Serial Data, yellow: +12V=Idle/Mark=1, 0V=Space/Data=0”. Can you please give me some hints on what I got wrong? Thank you.
Hello, Do you have some technical informations on SeatalkNG? My goal is to create a SeatalkNG to NMEA0183 (usb) to be used on OpenPlotter (Raspberry pi)
Nice, Thx
ResponderEliminarEste comentario ha sido eliminado por el autor.
ResponderEliminarHola German. Fantástica página. Me va a ayudar mucho a testear los ST50 que llevo instalados.
ResponderEliminarUna pregunta. He visto un esquema similar del adaptador seatalk-TTL y no lleva el 7805. Asimismo en tu esquema tampoco lo lleva. Si lo hace la placa y el circuito que muestras en el video. ¿Cual es su función? Las salidas RX TX las utilizaría con un arduino.
Gracias
La función del 7805 es alimentar el Arduino y la pantalla LCD, asi que, con la alimentación 12v que viene del seatalk (cable rojo) no necesitas nada más, (es conveniente ponerle un pequeño radiador al 7805).
ResponderEliminarEste adaptador TTL además de cambiar el voltaje de la señal, también la invierte, fíjate que la señal Seatalk (cable amarillo) es 12v-0v-12v (no-invertida) y la del arduino es 0v-5v-0v (invertida).
Un saludo.
Queda claro. Ahorro un cable extra para alimentar el arduino.
ResponderEliminarGracias!
Hello, great job
ResponderEliminarcould this simulator can be used to test st6000 head
Thanks
Yes, but for test ST6000 better try with a Seatalk Monitor:
Eliminarhttp://berreizeta.blogspot.com.es/2017/02/seatalk-35-480x320-tft-monitor.html
http://berreizeta.blogspot.com.es/2016/11/blog-post.html
HOla, Gracias pro compartir tu proyecto, me resulta muy interesante y quiero replcarlo.
ResponderEliminarme puedes decir que libreria de LCD i2C utilizaste ?
no logro compilar el proyecto en el IDE de Arduino
Las librerías usadas están en el fichero de descarga.
ResponderEliminarComprueba las direcciones del LCD que no siempre son las mismas
Hi, thanks a lot for sharing your projects. I am a newbie of playing with Arduino and is now studying how to use Arduino to send out Seatalk data. In your reply to comment on 2May2017, you stated that “Este adaptador TTL además de cambiar el voltaje de la señal, también la invierte, fíjate que la señal Seatalk (cable amarillo) es 12v-0v-12v (no-invertida) y la del arduino es 0v-5v-0v (invertida).” (translated by Google: “In addition to changing the signal voltage, this TTL adapter also reverses it, note that the Seatalk signal (yellow cable) is 12v-0v-12v (non-inverted) and that of the Arduino is 0v-5v-0v (inverted).”)
ResponderEliminarHowever, from my understanding, Arduino TTL is non-inverted (i.e. 3.3/5v high, 0v low, idle bit high, start bit low) and for Arduino TTL to send data via Seatalk, we only need to scale up the voltage. Can you please shed me some light what I misunderstood? Thank you.
Seatalk signal : bit 0 = 12v bit 1 = 0v
ResponderEliminarArduino signal : bit 0 = 0v bit 1 = 5v
Convert volt 12 to 5 and invert signal
ResponderEliminarThank you very much for your reply and confirmation that my understanding regarding the Arduino TTL voltage (i.e. 0v for 0, 5v for 1) is correct. However, your reply also stated that the voltage of Seatalk is bit 0 = 12v bit 1 = 0v! This is contradicting with what I got from thomasknauf.de in which it is stated that “Serial Data, yellow: +12V=Idle/Mark=1, 0V=Space/Data=0”. Can you please give me some hints on what I got wrong? Thank you.
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ResponderEliminarEste comentario ha sido eliminado por el autor.
ResponderEliminarHardwareSerial 9bits NickGammon :
ResponderEliminarhttps://drive.google.com/open?id=0B-aQ4eIWtpZcUklrRVhHcWl0X2M
Thanks mate. Does it interfere with the normal behaviour of HardwareSerial when working at 8 bits? Any collateral effect?
EliminarHi,
ResponderEliminarGood job !
I want to try it.
Do you have a gebber file to print your circuit.
I want to make it with https://cart.jlcpcb.com
layer = 1
dimension = 70mm x 70mm
https://cart.jlcpcb.com/quote?orderType=1&stencilWidth=70&stencilLength=70&stencilCounts=5&stencilLayer=1&stencilPly=1.6&steelmeshSellingPriceRecordNum=A8256537-5522-491C-965C-646F5842AEC9&purchaseNumber=
Best regards
Olivier
Added Gerber files link above.
ResponderEliminarIn JLCPCB : Panel by JLCPCB x = 2, y = 3
Total = 30 pcbs x 10$
Thanks.
ResponderEliminarI buy protocard on fix nano, resistor, BC557, BC547.
It's dont work. I need your help to fix it.
Tension seatalk 12V : OK
Tension GND : OK
Tension 5V Arduino : OK
Display screen : OK
SendByte : KO
Which the tension on yellow cable, seatalk ?
Yellow cable in Seatalk is DATA 0-5V
ResponderEliminarJust 2 values on yellow cable :
ResponderEliminarOFF = 0V
ON = 5V
with flow 4800baups, the signal switch with this two values.
We cant have for example 3V on seatalk ?
Thats right ?
Forget my question, answer is on your code
ResponderEliminardigitalWrite(SEATALK_TX_OUT, LOWL); // allow output to float
in int SendBit ( int cError, int cBit )
digitalWrite(SEATALK_TX_OUT, cBit); // send bit to output
Yellow cable give a analogic signal between 0 - 5V at 4800baups speed
I track the issue on my proto arduino card
Thanks a lot
TTL signal is 0-5V (bit 0 or bit 1)
ResponderEliminarHi,
ResponderEliminarIt's still KO.
void loop () {
delay(75);
digitalWrite(SEATALK_TX_OUT, LOWL);
delay(75);
digitalWrite(SEATALK_TX_OUT, HIGHH);
return;
}
Which value, i must see at probe "Seatalk data" ?
I try to simulate your scheama in EasyEDA
I change :
BC457 in 2N2222
BC557 in 2N2907
It's correct ?
It's correct ?
BC547 BC557 pinout 1-C 2-B 3-E
ResponderEliminar2n2222 2N2907 pinout 1-E 2-B 3-C
Hello,
ResponderEliminarDo you have some technical informations on SeatalkNG?
My goal is to create a SeatalkNG to NMEA0183 (usb) to be used on OpenPlotter (Raspberry pi)
Nothing, only Seatalk "old"
ResponderEliminar