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.

Picture 1 and 2 2. The gsm sim900a module interfacing with esp32 will be explained in one of my future articles. 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 sim900a gsm module has an operating voltage of 3 4v 4 5v.

Although it has a power supply pin which can be connected with the arduino s 5 volts. The sim900a can search the two frequency bands automatically. They all have different input power supply specs. In this tutorial our gsm module requires a 12 volts input.

Sim900a gsm module pin configuration descripton gpio pins. You need to double check your gsm modules power requirements. In starting days it worked fine. The frequency bands also can be set by at command.

But now it is working only on the ac to dc adapter 12v that is why i bought 12v rechargeble battery. Gsm sim900a power supply. Typical power consumption in sleep mode is 1 5ma. 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.

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. Sim900a gsm module features. Now wait for some time say 1 minute and see the blinking rate of status led or network led d6 refer picture 5 gsm module will take some time to establish connection with mobile network 5. The voltage regulator i am using is l7805 which gives a regulated output voltage of 4 9 v.

My battery is. Connect the antenna picture 4 4. My gsm sim900a modem is. As i said earlier the gsm sim900a module has no onboard voltage regulator.

The gsm sim900a module interfacing with nodemcu esp8266 and esp32 will be explained in one of my future articles. Insert your sim card to gsm module and lock it. First i have given power supply to gsm module from the arduino i e. There are a few things that you should take care o.

Check the power requirements of gsm module gsm modules are manufactured by different companies. Although it has a power supply pin which can be connected with the arduino s 5 volts. The gpio pins help to perform the simple and advance i o function. As i said earlier the gsm sim900a module has no onboard voltage regulator.

Gsm sim900a power supply. So we feed it using a 12v 1a dc power supply.