For Windows, we suggest Putty - it's free and open source!
- You have a Lipoly battery plugged in to the FONA JST
- You have a working 2G SIM installed in the back
- Connect Black wire to GND
- Connect White wire to TX
- Connect Green wire to RX
- Connect Red wire to Vio
- You may need to hold down the KEY button for 2 seconds until the PWR LED is lit and the NET LED blinks
The FONA will echo characters back so you can see what you're typing - very handy!
Start by initializing the auto-baud'er by sending AT and then return
You can then send some commands to query the module and get information about it such as
ATI - Get the module name and revision
AT+CMEE=2 - Turn on verbose errors (handy for when you are trying out commands!)
AT+CCID - get the SIM card number - this tests that the SIM card is found OK and you can verify the number is written on the card
Some tests to verify the setup
- AT+COPS? Check that you're connected to the network, in this case T-Mobile
- AT+CSQ - Check the 'signal strength' - the first # is dB strength, it should be higher than around 5. Higher is better. Of course it depends on your antenna and location!
AT+CBC - will return the lipo battery state. The second number is the % full (in this case its 92%) and the third number is the actual voltage in mV (in this case, 3.877 V)
Finally, you can try to text your phone! Sending an SMS is pretty darn easy.
- AT+CMGF=1 - this will set it to TEXT mode not PDU (data) mode. You must do this because otherwise you cannot just type out the message.
- AT+CMGS="nnnnnn" - send a text message! You will get a '>' prompt for typing. Type out your message and when you are done send a [Control-Z] on an empty line to send
You can also make a phone call, you must have a headset attached to the 4-pole 3.5mm headset connector, with a mic!
To call, dial
- To call, dial ATDnnnnn; Don't forget the ; at the end!
- If they pick up you'll hear it in the headset, if no pickup, you'll get a NO CARRIER return
- Once you are chatting, you can hang up by sending ATH