Sim808 not working

Projects General Guidance
1

Guys,

Please help me.

I'm an extremely new starter in this arduino world. Infact Its been one month and half only that I came to know something like this exists which can be programmed. However i have very good experience with the software industry. Like to do all interesting things myself. Past 1. 5 months I have managed to network arduino with rf24 mesh and build a basic (on/off switch) automation system for my home. All my experience ends here.

I'm trying to make a GPS/GSM tracking device for my car now.

  1. Ordered and got one gps-gprs-gsm shield from Ali express.

https://m.aliexpress.com/item/32267847079.html

There where no instructions for the board from seller. But I managed to connect the board looking on info provided on same board from others. How ever bad luck this time, the D5 led was not lighting up and was not receiving anything in serial monitor. External power supply was given.

  1. Then I bought another board for a local electronics shop hoping for good. That board also has no instructions, not even supply voltage rating or anything. Even the pin markings are not readable. Thanking God that the TX,Rx,Gnd,Vcc pins where somewhat identifiable. This one also needed an external power supply to work.

This is the exact same board and procedure I followed, with the difference of external power supply and adruino uno instead of mega.

Everything same as last time. No output on serial :frowning:

Now I'm starting to feel, the problem is in my side and I should be missing something. Days of troubleshooting and efforts, I'm not able to get this thing to work.

Can someone shed some light on what I'm doing wrong here?

Thanks...

Regards,
Mithun

2

Can someone shed some light on what I'm doing wrong here?

Only if you tell us what you are doing. Please read the how to use this forum sticky post for information about how to ask a question here.

3

Hi Mike,

Thanks for your reply, I'm just trying to get the built-in examples to work for me to move further. It's just the GPS example. One thing I noticed is that in the examples they are all using the software serial, I have defined the pins correctly for this and tried to use the default TX and RX of UNO also. Checked the baud rates too. Unfortunately nothing seems to work.

Thanks...

Regards,
Mithun

4

Yep that's the same thing I'm looking to :slight_smile:

5

I'm just trying to get the built-in examples to work for me to move further. It's just the GPS example.

What built in examples?
Did you read that post?