2024-07-01 7:34 AM
In the datasheet of the BLUNERG-M2 module, it states the following:
"The BlueNRG-M2 module allows applications to meet the tight advisable peak current requirements imposed with
the use of standard coin cell batteries. Optimized results are obtained when the embedded high-efficiency DC-DC
step-down converter is used (BLUENRG-M2SA). Instead, for the BLUENRG-M2SP the best performance in terms
of power consumption is achieved using a 1.8 V DC power supply. The BlueNRG-M2 can be powered directly
with a standard 3 V coin cell battery as with a pair of AAA batteries or any power source from 1.7 to 3.6 V."
Is there a place where I can see more detailed differences between the M2SP and M2SA modules, especially regarding the internal DC-DC converter? I tried looking in the datasheet, but there is no detailed explanation.
2025-08-04 11:39 PM
Hi stevang,
perhaps this could help:
https://www.st.com/resource/en/design_tip/dt0137-how-to-port-an-existing-project-from-the-bluenrgm2sa-module-to-the-bluenrgm2sp-module-stmicroelectronics.pdf
Greetings