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Xinyuan-LilyGO / LilyGO-T-A76XX

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

Can Lilygo T-A7670E charge internal battery from vbat pin? #67

Closed CHaKUisMyName closed 8 months ago

CHaKUisMyName commented 8 months ago

hi

I have a question: Can Lilygo T-A7670E charge internal batter (NCR18650B) from external battery by vbat pin?

And can the battery be measured?

theMladyPan commented 8 months ago

battery is measured via resistor divider 100k:100k on GPIO35. Measure voltage on GPIO35 and multiply by 2. VBAT pin is directly connected to battery, you can charge it via this pin using common li-ion chargers.

CHaKUisMyName commented 8 months ago

thank you @theMladyPan, it work for me