Sim900a Gsm Module Power Supply

Power up your gsm by connecting it to arduino s 5v and gnd picture 3 3.

Sim900a gsm module power supply.

Sim900a gsm module pin configuration descripton gpio pins. The sim900a can search the two frequency bands automatically. I am interfacing simcom s gsm module sim900 with arduino. 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.

The sim900a gsm module has an operating voltage of 3 4v 4 5v. Picture 1 and 2 2. Gsm sim900a power supply. You need to double check your gsm modules power requirements.

Although it has a power supply pin which can be connected with the arduino s 5 volts. Check the power requirements of gsm module gsm modules are manufactured by different companies. I want to power gsm sim900a with lead acid rechargeable battery 12v 1 2ah. As i said earlier the gsm sim900a module has no onboard voltage regulator.

Sim900a gsm module features. 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. As i said earlier the gsm sim900a module has no onboard voltage regulator. 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.

The gpio pins help to perform the simple and advance i o function. Although it has a power supply pin which can be connected with the arduino s 5 volts. Connect the antenna picture 4 4. They all have different input power supply specs.

My battery is. The frequency bands also can be set by at command. The gsm sim900a module interfacing with esp32 will be explained in one of my future articles. The gsm sim900a module interfacing with nodemcu esp8266 and esp32 will be explained in one of my future articles.

The voltage regulator i am using is l7805 which gives a regulated output voltage of 4 9 v. But now it is working only on the ac to dc adapter 12v that is why i bought 12v rechargeble battery. How to give power supply to my gsm module with the battery. Insert your sim card to gsm module and lock it.

In starting days it worked fine. My gsm sim900a modem is. In this tutorial our gsm module requires a 12 volts input. There are a few things that you should take care o.

Gsm sim900a power supply. Typical power consumption in sleep mode is 1 5ma.