4G / 3G / GNSS HAT Module for Raspberry Pi Zero/Zero W/Zero WH/2B/3B/3B+/4B/Jetson Nano, Based on SIM7600A-H , 4G Communication and GNSS Positioning Module Support LTE CAT4 up to 150Mbps

I have to admire the professionalism and how courteous the sales support team has been. My board stopped functioning and when I reached the sales support team they we had few emails exchanged. Within days they addressed ALL my queries. They very courteously replaced the board.I use this board with Project Fi data only sim cards and get an average 30Mbps download and 20Mbps upload speeds. I've used these to stream video from camera on my Raspberry Pi to AWS KVS.I will highly recommend this board for anyone who wants LTE and GPS functionality for their applications. Waveshare has good documentation and the RNDIS setup to use this board as usb0 network interface works without any issues through reboots.

Love the ability to connect a Raspberry PI or Arduino through a cell connection with this modem!Documentation and instructions leave a *lot* to be desired (hence minus one star), but I was finally able to get this to work using an Arduino (Arduino Nano RP2040 Connect). For others looking to do the same, a few recommendations:- Set the UART jumpers on the board to "B" (the two middle pins)- For me, it worked to connect the modem Pwr to the 5V output of the RP2040 Connect (after soldering the 5V bridge on the bottom of the board) and connecting the Rx/Tx pins directly to the RP2040 Connect's Tx/Rx pins (3.3V - no level shifter needed)- Test the modem connection using a simple "pass-through" bit of code that takes manual entries from the Arduino IDE Serial Monitor and passes them on to the modem. BE SURE to set your line ending to "Both NL & CR" or else it will look like the connection is doing nothing.- For the RP2040 Connect (and probably quite a few others), make sure you are using Serial1 to read/write to the modem (assuming you are using the standard Tx/Rx pins on the Arduino) -- the Waveshare_SIM7600 library uses Serial for both communication to the modem and for debug messages to the Arduino IDE. So you will need to selectively change some of the lines to Serial1 if you try to use that library.- Make sure you set the speed of the Serial1 connection to 115200- TinyGSM works well with this modem and is way nicer to use than the Waveshare_SIM7600 library -- it understands that some boards use Serial1 - you set it via #defines at the top of your codeAlso works for the Raspberry Pi 4B (documentation and libraries are a bit better for that)

When I submitted the IMEI of the device I received to my cellular provider, I was told that this cannot do all it's advertised to do. At least not without potentially learning some new tricks. The GNSS seems to work well enough, but (so far) I have not been able to get a SIM card that will let me access data or voice networks.Support isn't the greatest - and has been difficult to find assistance in accomplishing my intentions with the hat - so I'll give it "3 stars" for the amount of attention it seems to require to get working properly. I anticipated some level of searching for solutions by virtue of playing with a Pi, but I have other things to do, too. This rating will either go up, or down, depending on the final disposition of my project, and the ability of this HAT to help me accomplish it. If I get so frustrated with this that I select a different approach, I will see what else it might be useful for, but - there should be a little clearer path to the training wheels on this thing.

Product worked perfectly with raspberry pi 5 using T-Mobile SIM card in US. Make sure you have the usb cable connected between board and raspberry pi. ModemManager also needs to be started and enabled otherwise it will not work.

My device came in with the firmware showing as 7500. I've been attempting to upgrade to the latest 7600 but the firmware updating tools are failing.The device is somewhat functional to view SIM and show it connected to a network but when attempting to set SSL it errors. I was able to upload and view the certs but when attempting 'AT+CSSLCFG="sslversion",0,4' it just throws an Error. I don't know if this is due to the firmware mismatch, waiting on support.I contacted Waveshare multiple times with no response yet.I'll update if I can get this device functional.

I currently haven’t used this with my raspberry pi yet as I’ve been testing AT commands with my computer.It’s worth noting that you should look for the SIM7600A AT command list as not all AT commands you find on google will work.One thing i want to note as I am not sure if it’s a problem with the board, incorrect setup or what but I end up getting errors when typing commands and if you were to resend the same command it would work perfectly. Also when sending text messages I would sometimes get corrupted data. Example would be “Hell???o ??? W?orld” when it’s suppose to be just “Hello World”It could be just problems with UART or faulty firmware but I’ll report back if I can fix it.

It provides a good AT&T cellular connection - but you MUST use the right Rasp. Pi utilities and modem scripts - update the Rasp. Pi (apt-get update), install qmi-utils and udhcpc, and install the modem startup/control scripts (modemcomms-scripts-rawip.tar) from the waveshare wiki. The files are in SIM7600X-4G-HAT-Demo.7z. If anything, I'd say that this product needs more complete documentation so a newbie can install this on a Rasp. Pi.

it works in NAAt first i was skeptical, but i was able to make a phone call and send a couple of SMS’sThere is room for improvement in the Documentation.