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Bumped by Community user
Bumped by Community user
Bumped by Community user
Bumped by Community user
Bumped by Community user
Bumped by Community user
deleted 48 characters in body; edited tags; edited title
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ocrdu
ocrdu
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Problems with the antennaGSM/GPRS module sim800lSIM800L

Good day!

There isI have a problem with the sim800lan SIM800L module. I tried to connect sim800lthe SIM800L to the network, but it does not connect. The LED should flash 3 times per second, but it slowly flashes 9 times, then turns off, then 7 times, then turns off again, and the cycle repeats ... 

The power source that I use is 4 VDC. Current, 2A. I connected a capacitor to the power pins.

enter image description here

GND and NET are short-circuited, is this normal? I tried to unsolder an external antenna connector and cut the wire, but it did not help.

enter image description here   

enter image description here

I got a new module, but the problem remains. Could the party be defective?

enter image description here

Thank you for your attention!

Problems with the antenna module sim800l

Good day!

There is a problem with the sim800l module. I tried to connect sim800l to the network, but it does not connect. The LED should flash 3 times per second, but it slowly flashes 9 times, then turns off, then 7 times, then turns off again, the cycle repeats ... The power source that I use is 4 VDC. Current 2A. I connected a capacitor to the power pins.

enter image description here

GND and NET are short-circuited, is this normal? I tried to unsolder an external antenna connector and cut the wire, but it did not help.

enter image description here  enter image description here

I got a new module, but the problem remains. Could the party be defective?

enter image description here

Thank you for your attention!

Problems with the GSM/GPRS module SIM800L

I have a problem with an SIM800L module. I tried to connect the SIM800L to the network, but it does not connect. The LED should flash 3 times per second, but it slowly flashes 9 times, then turns off, then 7 times, then turns off again, and the cycle repeats. 

The power source that I use is 4 VDC, 2A. I connected a capacitor to the power pins.

enter image description here

GND and NET are short-circuited, is this normal? I tried to unsolder an external antenna connector and cut the wire, but it did not help.

enter image description here 

enter image description here

I got a new module, but the problem remains. Could the party be defective?

enter image description here

Bumped by Community user
Bumped by Community user
Bumped by Community user
Bumped by Community user
Bumped by Community user
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EugeneDN
EugeneDN
  • 31
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Problems with the antenna module sim800l

Good day!

There is a problem with the sim800l module. I tried to connect sim800l to the network, but it does not connect. The LED should flash 3 times per second, but it slowly flashes 9 times, then turns off, then 7 times, then turns off again, the cycle repeats ... The power source that I use is 4 VDC. Current 2A. I connected a capacitor to the power pins.

enter image description here

GND and NET are short-circuited, is this normal? I tried to unsolder an external antenna connector and cut the wire, but it did not help.

enter image description here enter image description here

I got a new module, but the problem remains. Could the party be defective?

enter image description here

Thank you for your attention!