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xyz-mIoT shield BC95G and M95FA versions powering how to





 

 

This section info


The guidelines bellow are apliable to xyz-mIoT shield BC95G and M95FA versions! PN like: XYZMIOT209#BC95G-UFL-xxxxxxx and XYZMIOT209#M95FA-UFL-xxxxxxx.

 

 

 

Direct drive powering for xyz-mIoT shield BC95G and M95FA versions


Connect the power supply to LIPO+ and GND pads, as shown bellow. xyz-mIoT BC95G and M95FA versions direct powering HINTS:
a. power supply voltage range between 3.80V and 4.20V. Do not exceed those values! Maximum voltage drop in burst mode <200mV.
b. power supply minimum curent requirements (M95FA version) - 650-1000mA sustained, 2A pulse capable
c. power supply minimum curent requirements (BC95G version) - 100mA sustained, 350mA pulse capable
d. one 1000uF low ESR electrolytic capacitor, soldered to super-capacitor PADS, will increase stability in harsh radio environments. Mind the capacitor polarity!

 

 

 

LiPO baterry powering for xyz-mIoT shield BC95G and M95FA versions (and solar charger guidelines)


Connect the power supply to Vraw and one of GND pads in proximity and the LiPO/ LiION battery, as shown bellow. xyz-mIoT M95FA or BC95G versions LiPO or LiION powering WARNINGS:
a. use only one cell LiPO or LiION batteries!
b. do not use batteries that have leaks or seem to have any damage!
c. do not use batteries without protection circuit!
d. do not change polarities!


HINTS:
a. power supply voltage must be between 4.8V and 7.00V. Do not exceed those values!
b. if you want to use 5V from USB as power source, simply connect Vusb(out) to Vraw pad.
c. ONLY for BC95G: instead LiPO / LiION battery, solder one 1000uF low ESR electrolytic capacitor to super-capacitor PADS. In this way the board will be stable, even in transmission mode, with 5V power applied to Vraw pad.





Bellow, 6V solar panel implementation guidline:

xyz-mIoT modemless version - simple 6V solar panel adapter circuit



 

 

 

TUTORIAL PROVIDED WITHOUT ANY WARRANTY!!! USE IT AT YOUR OWN RISK!!!!

 

 

 






 

 

 

Original how to written by Dragos Iosub & itbrainpower.net team

 

 

 

 

document version 1.00 / 2020-01-15 © R&D Software Solutions srl