I purchased the SparkFun LTE CAT M1/NB-IoT Shield - SARA-R4.
I’m interested in the SMS text message feature for my Uno R3.
In the arduino library example provided on your main website, it has an example for Sending SMS but not Receiving SMS.
Is there anyway some kind sole could give me an example of Receiving SMS?
and if it’s not too much trouble, maybe a very simple example like, Receiving an SMS and then setting the arduino’s built in pin 13 led to HIGH? If I had that much, I could do the rest on my own.
PS You used to have “SparkFun Cellular Shield - MG2639” and the best part was that it had the best arduino library examples for dumb dumbs like me. I wish I could use the MG2639 but I cannot because AT&T took away the 3G network and no other networks had 3g coverage in my area which is why I’m going to try this LTE CAT M1/NB-IoT Shield - SARA-R4.
Thanks in Advance.
I am also interested in using the shield to send AND receive SMS.
So, it would be very helpful if anyone provide code samples and any experience in receiving SMS with SparkFun LTE CAT M1/NB-IoT Shield - SARA-R4
thanks in advance
My question has been up for over 45 days.
I’ll give $50 to the first person who shows a working example on how to Receive an SMS.
Example, text the word “led13” to the Sara-R4 and have pin 13 set to HIGH.
The Arduino Send SMS example found in the Sara-R4 library works, So I don’t understand why a Receive SMS was not also inculcated.
My $50 offer is now expired as I am no longer using Sara-R4 shield.
I bought a Botletics sim7000a which has a much better Library and Community Support.
I did have limited success using AT+CMGR however, for the life of me I don’t understand why the Sara-R4 would include a send SMS function but not have a receive SMS function in the arduino Library example .
I’m very disjointed in this product.
alexxtasi:
I am also interested in using the shield to send AND receive SMS.
So, it would be very helpful if anyone provide code samples and any experience in receiving SMS with SparkFun LTE CAT M1/NB-IoT Shield - SARA-R4
thanks in advance
Dear alexxtasi !
Have you found code samples of SparkFun LTE CAT M1/NB-IoT Shield - SARA-R4 ? Please share for me. Thanks.
@lethuhonghtvn : No success !!
I found nothing on the web, and as you can see in this post… there is no answer form any user or from sparkfun.
I don’t know whether SARA-R4 library lacks such an SMS send functionality or sparkfun did not provide any example, but it sad !!
I think you meant to say SMS “receive” functionality but yeah, very sad indeed. If I was good at programming I’d add the functionality to the library and share it for all.
My solution was to give up on the sara-r4 and to purchase a botletics sim7000 from amazon. It has library support for both sending and receiving sms.
The only weird thing about the botletics sim7000 is, it doesn’t work at all unless you hook it to a 3.7v lipo battery. I got one of those cheap on amazon as well but I had to switch the neg and pos wires on the lipo so that the polarity matched what was printed on the cellular shield but other than that it works amazingly well. I’m very happy with it .
It’s unfortunate my Sara-R4 is going in the trash. I hate wasting money.
viewtopic.php?f=115&t=52329
I made a library update, go to the github in the topic above and install it in place of the sparkfun one. There is a getSMS and readSMS example included, getSMS returns an SMS struct with the phone number and message contents as strings. I’m trying to send commands and receive updates via SMS, this works for my project.
Could you give the link to the github reference please? Looked for the “topic above” but cannot find it. A search of github was unrevealing. Thanks.