If the theory sounds simple, in reality you will find quite a few tutorials on the internet explaining how to use the SIM800L with a Raspberry. Worse, you will essentially find incorrect tutorials that, at best, will make your installation completely unstable, at worst, will damage your SIM...
SIM800L & Arduino Uno Hardware To start, set up the hardware as shown below. Naturally, you’re going to need a valid SIM card to fully use the SIM800L module. For compactness, my setup was tested with a 1S (3.7-V) Li-ion battery (with 2,700-mAh capacity) removed from my smartp...
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 projects with a cheap modem for a couple of dollars. SIM800L is a minuscule GSM module...
In this tutorial, I’ll first go into a little background about humidity, then I’ll explain how the DHT11 measures humidity. After that, I’ll show you how to connect the DHT11 to anArduinoand give you some example code so you can use the DHT11 in your own projects. BONUS: I ma...