Help with Arduino Nano and M590E GSM GPRS

Projects General Guidance
1

Hi,

I am a newbie so I apologies for my ignorance.

I recently bought a Arduino Nano and I have done some small project e.g. connect sensors and LCD display so relatively easy stuff.

I have just got a Neoway M590E module I have search google for hours now and I am lost on how to connect this to my Arduino Nano.
The first blog I followed did not work and the Arduino as well as the M590E module became very hot and it did not work at all. This blog stated that the module can be powered from the Arduino itself. Once I noticed it did not work and became very hot I search returned to search the internet. I then found several post/blogs stating that the M590E module requires a separate power source. Unfortunately the explanation on how to connect the the M590E module to the external power source an arduino are either very complicated in that I don't understand the schematics or are very vague.

What I have planned so far:

I have sourced a 12V sealed battery as a separate power source, this would be connected to a voltage regulator to supply 4.7V to the M590E module.

For the other explanations I would require additional capacitors etc. links below:

I would appreciated any help with this.
I have attached a Fritzing file that shows how I would connect. I would really appreciate any help.

Thanks

2

Hi,

Looking at that module and those links the information does seem rather mixed.

The input voltage to your module ? - to me it looks like 3v3 plus the voltage drop across that diode, assuming its in series on the power rail ? What is the code on the diode or what is its measured voltage drop 0.2 or 0.7v

Something you have not mentioned is what interface between the Nano and M590 are you using.
The nano is 5v and the m590 is 3v3 so you need a logic level converter on the i/o lines.

No Fritz file visible.

As your chip has been connected to 5v and overheated it could be damaged.

As you have soldered it yourself are you sure there are no pcb / pin solder shorts ?

As its low price, did you buy 2 kits ? can you buy them locally ?

Not saying its not going to work, but the Sim900 and 800 series modules are a lot more complete and easier to get going.

3

Hi,

thanks for the reply.

The input voltage on the board is 5V, hence why I connected directly to the Arduino 5V pin. The diode seems to be n4001.

I did not use any interface I was under the impression I can connect the RX and TX of the module to the Arduino directly.

Soldering is fine I double check everything just now.

These are not available locally but I can order from eBay, just takes a while.

Would it be better to rather go for something like the Sim900 or Sim800. I also came across the following A6.

Thanks for the help.

4

Hi,

According the the M590 datasheet its maximum input voltage is 3.3v

Feeding it 5v via the 1n4001 gives it 4.3v.

Same with its RX pin, its being fed 5v into a 3.3v port.

The Sim900 link is for a Sim900A, which is regionally locked - see this pdf.
http://zapro.dk/div/pdf/20111031145224.pdf

Those Sim800l modules do work , have used one, lots of web tutorials on them, but again you must check the power and signal voltages.

The A6 chips, do not know anything about them or how compatible they are ..

edit .. though several ytubes of them working including with an Arduino.