We spent most of this lab hours researching the parts we need to assemble the REV D, the two websites we used are Digikey and Mouser, while looking for the parts, we also have one person updating our new REV D and looking for any potential errors that we didn't detect. One major error we found for Guava's designs and maybe Cranberry's designs since Guava uses Cranberry's solar charging chip schematic as a reference, we found out that the capacitor they used to store the energy from the solar is ceramic instead of electrolytic, ceramic does not store energies and this could be the reason why the circuit does not charge or dies quickly. Therefore, we would need to change up our shopping list a little, so we replaced the ceramic with the electrolytic, but since electrolytic is much bigger than ceramic. We would need to change up our design a little, which we plan to do it for the next lab meeting.

Overall, we manage to find all the parts we need to assemble up to 5 REV D, for Mouser it comes up to be around 79.56 and for Digikey, it comes up to around 81.45. Also, we sent Dr. Kuh our Ron Ho fund.

Members: Diwen, Rylie, Max– Time: 3:30PM - 5:30PM

Members: Diwen, Rylie, Max– Time: 1:00PM - 4:00PM