2015:Electrical Controls Subteam

Design

To provide for narrower controls for transport, driver #1's side of controls (i.e. 2 joysticks) will slide to the right and cover the laptop. These will automatically lock.

The intent is to have a simple release mechanism. When released a gas strut will automatically open the controls.

• 2 joysticks for main driver
• 1 joystick for aux driver
• 1 3-way toggle for autonomous (up=a pre-picked auto-mode; center=no auto; down=use auto-mode that is selected on Dashboard)
• 8 broken switches
• Laptop for Dashboard

Robot IO Map

This is the controls closed.	This is a picture of the controls open.
NOTE: The colors are not yet set in stone

Tasks

Status	Task	Information (decisions are in bold)	Owner
On hold	Lights	individually controlled? placement (maybe under front laptop bracket, maybe under both "1511" on right side, maybe behind "Rolling Thunder" on left side; cable run might be tricky) because there is limited space within the controls this year, this is on hold until the wiring and placement of power is mocked-up
Not started	Data sheets	get data sheets for all parts being used and place in Controls folder
Started	Latch design	finish CAD for latch design	Chris
Not started	LaunchPad	download development environment (see LaunchPad link) download sample code build, install and verify sample code change sample, install and verify	Andrew
Not started	Wiring	if lid is here, use that; otherwise print the drawing to use a mockup. determine length of ribbon cable to go from LauchPad to all switches	Gunnar
Not started	Latch mount	create and print drawing fabricate part	Alyssa
Completed	sheet metal drawings for boxes	these have been sent to Harris. there were some issues. those were fixed and drawings resent. waiting for part
Completed	sheet metal drawings for top	Need to finish lightning bolt, add 1/32" allowance around the bolt Update broken switches with square cutouts per the new switches Update three-way switch hole as required per the selected part Add cutout for Ethernet port on the upper left corner of this part? It's the round part in the box of parts. this has been sent to Harris. drawings approved. waiting for part
Completed	sheet metal drawings for laptop	this has been sent to Harris. drawings approved. waiting for part
Started	power cable	The options below need to pulled from both sides, but we want to be able to pull from one side only. USA Cables Retractable Power Cable Ziplinqs Retractable Power Cord Power products Retractable Power Cable Our only remaining idea is to use the retractable cord mechanism from the iron and insert our own cords (ethernet, power).  HAMILTON iron If we were to proceed with the iron idea we would need a way to release the cord and allow it to retract for now, we added a cut-out in sheet metal for the snap-in plug we already have. if we find we have space and can get a used iron, we may use that instead
Completed	ethernet port location	This option needs to pulled from both sides, but we want to be able to pull from one side only: Retractable Network Cable Determined that field has male end, so we need a female end will use port plug we already have and put it on the right top
Completed	select board for joystick interface	Cypress is mostly a USB-Serial and PSoC test board, it doesn't really have what we need LaunchPad has digital and analog inputs. There are built-in pull down resistors, so wiring switches will be easy. There are sample programs including joysticks already setup to use with the Dashboard; the source code is available so it can be modified. Also, form factor is much better for using the contorls. MSP430 Launchpad for FIRST will use the LaunchPad
Completed	General design for latch	Use something similar to a gate latch Home Depot latch Gate Latch Latch_example.jpg ‎ Pin/bolt attached to movable part/left section create a latch similar to: Lock and Pin.png one latch mounted to front of fixed section and one latch at the back run a u-shpaed bar from latch to latch (under the secondary controls) have access to bar via a hole through the secondary controls lid will custom design something similar to a gate latch. it will mount on the bottom and catch on the moving box's lip (that is near the draw slide mount). a rod will stick out the right end with a knob that can be pulled.
Completed	determined handle to use	will use one handle on front (no one liked having them on the ends). part is here
Completed	determined switches	will use 3-way toggles and square rockers for broken switches. parts are here

Meeting Minutes

1/6

(Chris, Mr. Byers)

• discussed preliminary options

1/7

(Chris, Mr. Byers)

• discussed preliminary options

1/8

(Chris, Mr. Byers, Eric, David M.)

• selected overall concept (sliding controls)

1/10

  (Gunnar, Alyssa, Andrew, Eric, Mr. Byers, David M.)

• inventoried parts we have
• determined controls we thought were needed
• went over desires from strategy team
• Home Depot shopping run
• met with Elliot to select secondary controls
• created wiki page
• created todo list 

1/11

(Alyssa, Andrew, Mr. Byers)

• investigated latch options
• investigated retractable cords
• selected board for controls

1/13

(Chris, Eric, Mr. Byers, Gunnar, Andrew, Alyssa, Dave, Frank)

• Chris worked on the main base and assembly 
• Gunner worked on the very complicated drawer slides
• Alyssa and Andrew worked on the Aux panel
• Eric found a gas shock that will fit our needs 
• Attended integration meeting rom 6:30 to 7:00

1/14

(Chris, Mr. Byers)

• Chris updated assembly
• changed laptop mount so we have more space between it and the sliding lip

1/15

(Chris, Eric, Alyssa, Dave, Frank)

• Chris worked on the main base and assembly 
• Alyssa worked on the lightning bolt cutout
• Eric found three way and broken switches and got them along with the gas shock on the shopping list. Datasheets are located in a datasheet folder with the rest of the controls stuff.
• Attended integration meeting rom 6:30 to 7:00

1/17

(Chris, Andrew, Gunnar, Alyssa, Dave, Eric, Mr. Byers)

• Chris worked on finishing the final assembly and the latching mechanism
• Gunnar worked on cadding up some of the electrical components, looking up some possible latches, and cadding other random parts.
• Andrew worked on the final drawings with Chris, finalizing the aux panel, placement of words, figuring out the hinge situation, and looking up other important information
• Alyssa worked with Andrew with his tasks as well as finalizing the lightning bolt cut out
• Eric and Mr. Byers assisted the students with their tasks, and kept them on task and at work. 
• Attended integration 6:30 - 7:00
• Met the deadline for the design

1/18

(Andrew, Chris, Alyssa, Eric, Mr. Byers) 

• Finalized all of the parts
• Made all of the drawings for the parts
• Sent the parts out
• Secured a extension cable for the inside of the controls

1/20

(Andrew, Chris, Alyssa, Mr. Byers, Eric)

• Fixed incorrect drawings and resent them to Harris
• Completed one of the drawings to be made in our shop

1/21

(Andrew, Chris, Mr. Byers)

• Andrew worked with the development board and downloaded the software to the laptop that will be used in this years controls
• Chris worked with Mr. Byers and updated the io map for the joysticks; talked with Elliot too, to make sure we mapped the buttons the way he wanted.

1/22

(Chris. Gunnar, Eric, Mr. Byers, Dave)

• Chris worked with Mr. Byers and Mr. Cavaliere to get a busshing for the release mechanism
• Gunnar worked with Eric to create schematic for switches to LaunchPad
• Mr. Byers and Dave connected the LaunchPad and loaded the supplied HID firmware; and verified buttons worked