Intro to the SIM800L. If you are looking for a compact GSM/GPRS module, you can get the SIM800L from most eBay traders. It is not the most judicious choice, but you can build your own basic GSM ...

TK continues to explore the SIM800L GSM modem. ... I’m using the SIM800L and Arduino Nano V3 to develop a nifty one-channel SMS relay. The ... gets around 4.3 Vdc. Though most SIM800L modules work on ...

He decided to go with the low-cost SIM800L GSM modem, ... The connection to the GSM M-590 module is only 2400 bps, ... including an Arduino-based processing core, GPS, NFC, and other building ...