Go Down

Topic: SIM800l won't powered up (Read 566 times) previous topic - next topic


Yesterday I tried to use SIM800l, but after wiring all the pins the led wasn't turn on (nor blinking). I set my arduino and SIM800l like this:

and uploaded some sample codes:

Code: [Select]

#include <SoftwareSerial.h>

SoftwareSerial SIM800L(2, 3); // RX | TX

char c = ' ';

void setup()
    Serial.println("Arduino with Module GSM is ready");
    Serial.println("Module GSM started at 9600");
    Serial.println("Setup Complete! SIM800 is Ready!");
void loop()
    if (SIM800L.available()) {
         c = SIM800L.read();
    if (Serial.available()) {
        c = Serial.read();

With those codes above, my serial monitor output stops at this point:
Code: [Select]

Arduino with Module GSM is ready
Module GSM started at 9600
Setup Complete! SIM800 is Ready

<-- stops here, no further output

Can I get some clues what am I missed? Thanks

Go Up