0
\$\begingroup\$

This helpful question pointed me into the right direction for powering the BBB with a 3.7V LiPo battery. However, as this answer demonstrated, I won't be able to give the WiFi/BT module power in doing so.

User rblasco mentioned that placing a STPS1L30U diode solved this, but why was this diode removed from the BBBW in the first place? Would there be any negative ramifications if I also added the missing STPS140A diode?

Diode D2 on Schematic

D2 Missing from Board

Edit I've found out that I can get the BBBW to boot with a LiPo battery. This question is asking if anything bad happens from applying the modification.

\$\endgroup\$
  • \$\begingroup\$ It would help us a lot if you posted a link to the schematic: github.com/beagleboard/beaglebone-black-wireless/blob/master/… But this one already has the diode removed. Which version of the Beaglebone are you referring to that has the diode D2? \$\endgroup\$ – Toor Feb 21 at 22:00
  • \$\begingroup\$ Wireless has the diode removed where BBB supposedly has it: github.com/beagleboard/beaglebone-black/blob/master/BBB_SCH.pdf. A comment in the other thread lead me to believe that the schatzki diode would solve the power issue. But I'm not sure as to why... \$\endgroup\$ – LuminousShadow Feb 21 at 23:06
  • \$\begingroup\$ D2 is just a user LED... rblasco's post doesn't make sense either since he specifically says he was looking at the schematic for the BBBW and that D2 for that was not installed, except it doesn't exist at all in the BBBW schematic. \$\endgroup\$ – Toor Feb 21 at 23:50
  • \$\begingroup\$ It does. Added findings to question. \$\endgroup\$ – LuminousShadow Feb 22 at 19:11
  • \$\begingroup\$ Was that in completely schematic or something? But that one makes a lot more sense. \$\endgroup\$ – Toor Feb 22 at 19:55

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Browse other questions tagged or ask your own question.