Blue LEd schield DFR 0572 arduino
pipo.andy 2023-10-06 09:59:08 361 Views2 Replies Bonjour,
I have a dfr 0572 shield (sim7000) connected to an arduino uno. I would like to know the role of the blue LED for the GSM network. Currently, it flashes quickly and regularly.
At first it flashed slowly and steadily. The SIM card is operational but it seems to me that the SIM7000 modem is not working.
Thanks for your help
pipo
Are you referring to the #3 LED here?
https://wiki.dfrobot.com/SIM7000_Arduino_NB-IoT_LTE_GPRS_Expansion_Shield_SKU__DFR0505_DFR0572
That's the network LED. It will flash after every 3 seconds if network is found. Flashing faster means the module is not registered to the network. Please check if your power supply is adequate.
lia.ifat Hi,
Quick flashing: Finding NetworkSlow flashing(every 3 seconds): Registered to the networkOFF: SIM808 chip is not powered on(Button: BOOT)
Afra 
