For Windows, we suggest Putty - it's free and open source!
Double Check!
- 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
Test Commands
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
Test Setup
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!
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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)
Test Send SMS
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
Test Call
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