Involvement:General (knows how to use it) - Ownership:1 day to 1 week Pros:Just connect the rx-tx gnd, 5v, and works! I'm using it with a PIC16F887 and everything is okay. It communicates with SIM900 AT commands.
- comes with pins, and mounting screws, easy to mount
- you can save power by using the pwr pin to switch off from software
- fast pow... Read more
Involvement:Expert (understands the inner workings) - Ownership:more than 1 month Pros:really simple serial GSM modem. The use of a serial port and AT commands makes the SIM900 an almost universal GSM module, enabling its use on everything from 8 bit microcontrollers to high end 32 bit ARM microcontrollers and SOCs, FPGAs and even computers. AT... Read more
Involvement:Expert (understands the inner workings) - Ownership:1 day to 1 week Pros:Really small all in one gadget. It works with my DIY USB-TTL adapter with FT232RL. I tested some AT commands - make call, accept call, send SMS, read SMS, delete SMS, looks like everything works like it should. Cons:I think the mic & phones sockets are swape... Read more
Involvement:Expert (understands the inner workings) - Ownership:1 day to 1 week Pros:Works immediately after switching on.
You just connect it to the COM port using MA232 or via TTL adapter to the USB (you can use the SKU: 147863)
Then you can send AT command in accordance with the chip.
I was able to send yourself a SMS after 5 minutes of resea... Read more
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