Sim900a Gsm Module Power Supply

Picture 1 and 2 2.

Sim900a gsm module power supply.

Power up your gsm by connecting it to arduino s 5v and gnd picture 3 3. The sim900a can search the two frequency bands automatically. First i have given power supply to gsm module from the arduino i e. My battery is.

Gsm sim900a power supply. So we feed it using a 12v 1a dc power supply. All pins give the maximum output equal to the power supply which is useable to control most of the devices like sensors and other modules. Insert your sim card to gsm module and lock it.

The sim900a gsm module has an operating voltage of 3 4v 4 5v. How should i design the circuit so that i get 3 2v 4 8v with 2a for proper gsm module operation without destroying any components. You need to double check your gsm modules power requirements. In this tutorial our gsm module requires a 12 volts input.

It draws high current upto 2a when transmitting data so i would advise using a good quality power supply with capacity of 2 5a 3a. My gsm sim900a modem is. As i said earlier the gsm sim900a module has no onboard voltage regulator. The gsm sim900a module interfacing with esp32 will be explained in one of my future articles.

Sim900a gsm module features. In starting days it worked fine. Sim900a gsm module pin configuration descripton gpio pins. I am interfacing simcom s gsm module sim900 with arduino.

Connect the antenna picture 4 4. How to give power supply to my gsm module with the battery. The gpio pins help to perform the simple and advance i o function. They all have different input power supply specs.

Typical power consumption in sleep mode is 1 5ma. But now it is working only on the ac to dc adapter 12v that is why i bought 12v rechargeble battery. The gsm sim900a module interfacing with nodemcu esp8266 and esp32 will be explained in one of my future articles. There are a few things that you should take care o.

The voltage regulator i am using is l7805 which gives a regulated output voltage of 4 9 v. I want to power gsm sim900a with lead acid rechargeable battery 12v 1 2ah. Although it has a power supply pin which can be connected with the arduino s 5 volts. The frequency bands also can be set by at command.

Although it has a power supply pin which can be connected with the arduino s 5 volts. As i said earlier the gsm sim900a module has no onboard voltage regulator.