Hello there
I want to power on a gsm 900 shield using software. For this I have to solder the JP pin, but on my shield there is no JP pin, or maybe it's named different.
Can you see it? Or maibe I have to do something different...
Please help
"you can turn the GSM module on and off with the power button on the side of the
shield, and it defaults to off during an initial power-up.
Also, if you connect the R13, you can set D9 to HIGH for one second in your sketch to turn the
module on (or off if required for power-saving). "
kprims:
"you can turn the GSM module on and off with the power button on the side of the
shield, and it defaults to off during an initial power-up.
Also, if you connect the R13, you can set D9 to HIGH for one second in your sketch to turn the
module on (or off if required for power-saving). "
Thank you for the reply
What do you mean "Connect the R13" ?
Solder those 2 pins together? In other tutorials it stated to solder the JP, that's why I'm asking here.
I don't want to damage the shield.
Thank you
"What do you mean "Connect the R13" ?
Solder those 2 pins together? In other tutorials it stated to solder the JP, that's why I'm asking here.
I don't want to damage the shield."
You could try drawing a line between the two pins or maybe tie a string between them. Better yet is to make an electrical connection between the two pins on R13. I think a soldered connection would work just fine. 
Go to this URL and scroll down to "Manual download: click to open". Download and Extract and you will find a lot of good information on your board.
kprims:
"What do you mean "Connect the R13" ?
Solder those 2 pins together? In other tutorials it stated to solder the JP, that's why I'm asking here.
I don't want to damage the shield."You could try drawing a line between the two pins or maybe tie a string between them. Better yet is to make an electrical connection between the two pins on R13. I think a soldered connection would work just fine.
Go to this URL and scroll down to "Manual download: click to open". Download and Extract and you will find a lot of good information on your board.
Thank you very much.
Also I was wondering if I could safely power it using 7.8 volts, it seems that it it possible to accept current up to 9 volts so I guess it would be ok
rocknum:
Thank you very much.Also I was wondering if I could safely power it using 7.8 volts, it seems that it it possible to accept current up to 9 volts so I guess it would be ok
"current up to 9 volts " makes no sense.
It accepts a voltage and will draw current correspondingly.
// Per.
Soldering the R13 worked like a charm.
Now, does anyone know if I could boost the output sound?
When I'm calling someone, I can hear them but I would really boost the signal, because the sound is very low and I have to keep the speaker tightly against my ear to hear them
So is it possible to boost the sound?
Thank you
Does anyone know which pis is the ring pin? I couldn't find it in the manual
anyone?
kprims:
"What do you mean "Connect the R13" ?
Solder those 2 pins together? In other tutorials it stated to solder the JP, that's why I'm asking here.
I don't want to damage the shield."You could try drawing a line between the two pins or maybe tie a string between them. Better yet is to make an electrical connection between the two pins on R13. I think a soldered connection would work just fine.
Go to this URL and scroll down to "Manual download: click to open". Download and Extract and you will find a lot of good information on your board.
Thank you very much sir. I was having the same issue as OP, and couldn't find a proper explanation after going throgh multiple PDFs.