suggestion from Ryan:

"i'm also pretty sure we need a lot more than 1 LED to produce enough diffuse light to be visible on a bright field. sparkfun and others have lots of easy-to-use arrays (https://www.sparkfun.com/categories/175), etc.

this seems like a great starter/bonus project if we have some new staff looking for an electronics design project."

Put more vias between the two ground planes on TeamFlag. Increase via size in DRU to be bigger.

Make the pull up network before the resistors, aka a 2x3 resistor network.

Move the box on right to before the resistor.

Many have proportional font right now. Low priority, but vector prints better on silkscreen and so will be more legible, which is helpful for production. This will require fixes in both library packages and .brd files

Battery Buzzer

PDB

RFID

Servo

Team Flag

Twist It

• Not all it's components are accounted for in the BOM

Yogi Bear

"Boards should have at least 2 4-40 mounting holes in opposite corners (use the STAND-OFF part). The horizontal/vertical distance between them must be a multiple of 0.25 inches. It is preferred that the distance from the edge is also a multiple of 0.25 inches, but this is not required. If not physically possible, add an extra "wing" to the board for a tooling hole."

Something that can sense magnetic fields

The team flag's APM needs to be replaced by the surface mount one

• Include "+" on the anderson & ATX connectors to allow for correct installation of andersons w/out looking it up
• Update ATX connector to new footprint.
• Add Nuts & Bolts to BOM.

Possibly look into distance sending

particular the isolate setting on the gnd plane

we keep getting board shorts.

So: bigger isolate, and bigger spacing for things in general.

Feedback on Rev 9B before ship.

1. Silkscreen for the screw terminals could use some changes. The silkscreen labels should still be visible even after the terminals are soldered in place, so users can look @ the board to determine which terminal is which.

2. Schematic needs net labels to the right of the R1 thru R3

3. Just a question about the motor driver. (Confirm: is this the link to the motor driver?)

How is this thing mounted to the twistit? It looks like they're both back-to-back. Have we talked to enclosures about this? Having the andresons going out the back will make for a very... interesting... enclosure.

Although, tbh, i can't immediately think of a better way to do it.

This is probably included in some of Doug's issues, but I wanted to emphasize its position in the queue/stack. This is to enable andersons to go vertical on both sides.

smol

Add parts need to have their manufacturer, part number, supplier, supply number etc.

The XT60 connector requires a lot of force to remove.

Sometimes, users will press down on nearby tall fuses (the thermal reset ones) for leverage, and break the fuseholder in the process.

G wants the andersons to be flat

Arduino pro micro footprint needs to be flipped on one side

Add strain holes infront of the screw terminal. Maybe not put it on the back, and instead stream line it.

THIS IS CRITICALL!!!!!!!!!

It's in pie.lbr. Averal did the baby stuff, the rest is for you to do. Have fun.

From DRU, DFM, Gerb Making, Board Review Process, things to look out for

The BLUE LED is leaking ever so slightly. Also Doug noted that we should not be using the ones from DigiKey.

It's currently very sloppy

U$1 for the XT60
R0 because you didn't want to renumber everything
U1 (TI Chip) vs UC1 (arduino)
Andersons have "Conn" heading, not "JP"

Make traces thicc

Pull-ups need to be all changed to 10K

LED Followers all need to be changed to 200 Ohm

General

• PiE Logo and Copyright is being covered
• Only vector fonts

Battery Buzzer

PDB

RFID

Servo

Team Flag

Twist It

• Screw terminal on wrong side of board
• Strange part number is on the board

Yogi Bear

Tell Krystyn

Update servo silkscreen with which one is servo 1 and servo 0 in hibike.

Running list of fixes for yogibear for next year:

Enable falls from 4.65 (VCC) to 4.5 V when entering an error state. The amount the voltage falls is set by a resistive network on the motor driver chip, i.e. something that we can't change. However, this change in voltage is readable from an ADC:

• Connect the "EN" pin to an ADC - capable Arduino Pro Micro pin.

refer to Doug

1. test h bridge waveform
2. test current (1A, 2A, 5A) (I think?)

Battery Buzzer

• Strangely large
• Lot's of dead space

PDB

• REALLY big
• Look into shaving off bottom area?

RFID

Servo

Team Flag

Twist It

• Maybe try to linearize the layout: usb on one end, screw terminal on other, opposed to the 90 degree angle we have currently

Yogi Bear

This is the list of PDB rev 9B erratta as currently discovered by Doug. There may be more out there:
Erratta:

1. Wrong diameter holes (#10-32, should be #8-32) are used on the PCB for the DC converter
2. Footprint for the circuit breaker has issues:
   -the footprint is symmetric, and it shouldn't be because the circuit breaker itself isn't
   -the bottom hole needs more exposed copper to make soldering / bolting easier.
3. The Buzzer pin isn't a PWM on the arduino, so the buzzer can't actually buz. We need to swap the "Calib" and "Buzzer_Signal" lines on the arduino.
4. Really need better silkscreen for the buttons, and high precision resistors. I pushed the wrong button several times.

Improvements:

1. The arduino currently is directly hooked up to the 5V line. There should be a fuse added.
2. We can delete SJ1. It's unneeded now.
3. The calibration Button is to be replaced with a Jumper. That way, a student won't be able to accidentally trigger it but PiE Staff can still quickly re-calibrate it.
4. mounting holes are weirdly located. More importantly, it seems like there will be a * small * upper enclosure area around the battery buzzer circuits, and there currently aren't enough mounting points there. Check with enclosure people as to the dimensions of the holes - they may need to be #4-40's.
5. Need mounting for COTS battery buzzer just in case.

ALSO: Connector numbers out of order.

ATX Footprint is too small

Replace servo's anderson with an ATX