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weatherbox:dragonfruit:meeting_minutes_january_17_2017 [2017/01/18 04:50] kwong created |
weatherbox:dragonfruit:meeting_minutes_january_17_2017 [2021/09/19 21:59] (current) |
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| - | =====Dragonfruit Team Meeting - January 17th, 2016===== | + | =====Dragonfruit Team Meeting - January 17th, 2017===== |
| Attended: Kevin, Gordon, Tyler | Attended: Kevin, Gordon, Tyler | ||
| - | ==== Updates ==== (Temporary) | + | ==== Updates ==== |
| - | * Board Deployed but complications arose | + | * Strangely, board 3 from last year works and transmits perfectly fine |
| - | * Board randomly stopped transmitting | + | * possibly b/c it has not been powered on in a while |
| - | * High winds blew box off of its mount | + | * This board was showing major transmission issues last year |
| - | * Board currently inside SCEL and now debugging | + | * ==Try putting screws into through holes== |
| - | * Board 5 fully populated | + | * Dylan wrote an arduino code to measure XBee voltage (watch for ghost voltage) |
| - | * charging chip not fully soldered on | + | * Currently doing a life time test of board |
| - | * LED not lighting up with solar panel | + | * will move on to doing life time tests while housed and with solar panel |
| - | + | ==== Problems ==== | |
| - | ==== Problems ==== (Temporary) | + | * The board works fine, and we didn't do anything |
| - | * XBee stops transmitting even while supplied with 3.1V | + | ==== Goals ==== |
| - | * Sometimes because of movement | + | * Test XBee transmission when in contact with metal and without |
| - | * Sometimes when moved a lot, still transmits perfectly | + | * Reprint housing bottom and Solar Panel holders (put holes in the screw places) |
| - | * Sometimes stops transmitting when some pins are touched, but not all the time | + | * Use diode to avoid power from XBee |
| - | * XBee definitely stops transmitting when power is shorted to ground even for a very short time | + | * Find an appropriate diode |
| + | * Find out where MCU could be powering the XBee from | ||
| + | * Program Dragonfruit board 5 | ||
| + | * Measure for shorts | ||
| + | * Oscilloscope | ||
| + | * Talk to Ohta about possible plane tunneling issues | ||
| + | * Figure out if repeated use damages/degrades the performance of the board | ||
| + | * Test board after replacing Charging Chip | ||
| + | * Find surface mount charging chip part (redesign board to use this part, may solve shorting issues) | ||
| + | * Finalize Eagle schematics of GPS and RTC | ||
| - | ==== Goals for this week ==== (Temporary) | + | |
| - | * Draft new PCB with GPS | + | |
| - | * get rid of led debug lights on sensor board | + | |
| - | * Better solder charging circuit and MCU | + | |