![]() ![]() ![]() SoftwareSerial fonaSS = SoftwareSerial(FONA_TX, FONA_RX) Īdafruit_FONA fona = Adafruit_FONA(FONA_RST) Sending SMSįor the sketch explanation, refer to the SIM800L article. We can then use the same sketches we used in the SIM800L tutorial. Here’s a diagram you can use to connect the breakout board to an Arduino UNO: The module has 3.3V TTL levels which means connecting its Rx pin directly to an Arduino’s Tx pin is a no-no. I will update this post once the information is found. There’s no information on what the 4.2V version looks like. This version can be powered by a 4.5 V to 5.5V source. Mine is the 5V version with the “V5.1” print near the VCC pin. The SIM900A breakout board has a 5V and a 4.2V version. But the AT command set for both are identical which means we can use the same library! The primary difference between the SIM900A and the SIM800L is that this board doesn’t have Bluetooth and FM support. They don’t have labels so allow me to provide them for you: Similar to the SIM800L module, the SIM900A breakout board has eight pinouts. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |