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Xinyuan-LilyGO / LilyGO-T-A76XX

LilyGo A7670 A7608 SIM7672 series
MIT License
96 stars 42 forks source link

the modem does not turn on when powered by the battery #100

Closed Aguilaaar closed 1 month ago

Aguilaaar commented 2 months ago

I have the board with the A7608SA-H modem, and everything works very well when I'm using power via the USB-C cable. But when I switch to the battery, the modem does not turn on, the ESP works normally, runs the code, sends commands to the modem, but it does not respond. I have two identical boards and both have the same problem, with my code or with examples here. Do I need to do anything different to use with batteries?

lewisxhe commented 2 months ago

Which example is used?

Aguilaaar commented 2 months ago

I tried many of these that are here https://github.com/Xinyuan-LilyGO/LilyGO-T-A76XX/tree/main/examples I believe that everyone who uses a GPRS connection

Aguilaaar commented 2 months ago

I just found my mistake! I studied the schematic files and saw that I need to keep ESP pin 12 high, as shown in the T-A7608X-V1.0.pdf file. I hadn't found this information anywhere else.

lewisxhe commented 2 months ago

POWERON MODEM is included in every example. Didn’t you see it?

github-actions[bot] commented 1 month ago

This issue is stale because it has been open for 30 days with no activity.

github-actions[bot] commented 1 month ago

This issue was closed because it has been inactive for 14 days since being marked as stale.