Firmware for HM-10 modules without external XTAL

kscheff / BlueBasic

BASIC interpreter for CC2540 and CC2541 Bluetooth LE chips

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Firmware for HM-10 modules without external XTAL #6

Closed 0xFACE closed 6 years ago

0xFACE commented 6 years ago

Is it possible to prepare firmware for HM-10 modules without external XTAL? I found many of cheap modules on Ebay without 32kHz XTAL wont work with BlueBasic.
AFAIK with special build flag we can force chips to use internal oscillator.

Best regards

kscheff commented 6 years ago

Without 32 KHz xtal you loose sleep functionality. I also saw cheap modules recently, but I am using JDY-08 modules since some time know. They are cheap as well (around $1.70) and they recently got FCC approval. So it might not be worth the hassle to change the firmware. I have about 300 modules so far deployed they are all running BlueBasic.

0xFACE commented 6 years ago

Thank you, apparently I overlooked this module.