Sim900a Gsm Module Power Supply

My gsm sim900a modem is.

Sim900a gsm module power supply.

The sim900a can search the two frequency bands automatically. Connect the antenna picture 4 4. I want to power gsm sim900a with lead acid rechargeable battery 12v 1 2ah. Sim900a gsm module features.

Insert your sim card to gsm module and lock it. 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. First i have given power supply to gsm module from the arduino i e. You need to double check your gsm modules power requirements.

So we feed it using a 12v 1a dc power supply. There are a few things that you should take care o. 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.

Although it has a power supply pin which can be connected with the arduino s 5 volts. The gsm sim900a module interfacing with nodemcu esp8266 and esp32 will be explained in one of my future articles. In starting days it worked fine. Check the power requirements of gsm module gsm modules are manufactured by different companies.

Sim900a gsm module pin configuration descripton gpio pins. Power up your gsm by connecting it to arduino s 5v and gnd picture 3 3. But now it is working only on the ac to dc adapter 12v that is why i bought 12v rechargeble battery. Although it has a power supply pin which can be connected with the arduino s 5 volts.

My battery is. As i said earlier the gsm sim900a module has no onboard voltage regulator. The voltage regulator i am using is l7805 which gives a regulated output voltage of 4 9 v. I am interfacing simcom s gsm module sim900 with arduino.

The frequency bands also can be set by at command. Gsm sim900a power supply. 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. They all have different input power supply specs.

Typical power consumption in sleep mode is 1 5ma. The gpio pins help to perform the simple and advance i o function. The sim900a gsm module has an operating voltage of 3 4v 4 5v. Gsm sim900a power supply.

In this tutorial our gsm module requires a 12 volts input. How to give power supply to my gsm module with the battery.