Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
Building a Device Lab: Power
Search
Lara Hogan
June 20, 2014
Technology
1
4.9k
Building a Device Lab: Power
Lara Hogan
June 20, 2014
Tweet
Share
More Decks by Lara Hogan
See All by Lara Hogan
Navigating Conflict
lara
3
340
What Humans Need at Work
lara
1
440
Influence Without Authority
lara
8
3.2k
Optimising for team health: Tools and techniques of supportive teams who build successful products
lara
4
360
Management 101
lara
4
390
Dealing with surprising human emotions - workshop
lara
19
590
Delivering (and requesting) feedback workshop
lara
17
1.2k
Mentoring, Coaching, and Sponsoring Workshop
lara
15
3.6k
Setting Expectations as a Manager
lara
9
1.2k
Other Decks in Technology
See All in Technology
Tableau事例紹介 / Tableau Case Study of Eureka
kazuya_araki_tokyo
1
190
Next'24 事例セッションの紹介とクラウド資格を活用したキャリア形成について語りMuscle
yasumuusan
1
430
ServiceNow Knowledge 24の歩き方 EYストラテジー・アンド・コンサルティング
manarobot
0
180
Google Cloud の AI を支える裏側のインフラを垣間見る!
maroon1st
0
340
どうするコスト最適化のトレードオフ
tetsuyaooooo
1
490
EMとして2023年度に頑張ったこと / What we did well in FY2023 as a EM
pauli
1
160
コンパウンドスタートアップのためのスケーラブルでセキュアなInfrastructure as Codeパイプラインを考える / Scalable and Secure Infrastructure as Code Pipeline for a Compound Startup
yuyatakeyama
4
4.7k
継続的な改善 x ⾮連続的な進化
sansantech
PRO
3
140
JAWS-UG Bedrock Claude Night
yamahiro
3
540
Azure Container Apps + Bicep 〜 こんな感じで運用しています
kaz29
2
440
サーバー間 GraphQL と webmock-graphql の話 / server-to-server graphql and webmock-graphql
qsona
2
180
Compose Compiler Metricsを使った実践的なコードレビュー
tomorrowkey
1
220
Featured
See All Featured
Why Our Code Smells
bkeepers
PRO
331
56k
How to Ace a Technical Interview
jacobian
272
22k
A Tale of Four Properties
chriscoyier
151
22k
In The Pink: A Labor of Love
frogandcode
138
21k
Music & Morning Musume
bryan
41
5.6k
Creatively Recalculating Your Daily Design Routine
revolveconf
210
11k
"I'm Feeling Lucky" - Building Great Search Experiences for Today's Users (#IAC19)
danielanewman
221
21k
From Idea to $5000 a Month in 5 Months
shpigford
377
45k
Code Review Best Practice
trishagee
55
15k
Building Effective Engineering Teams - LeadDev
addyosmani
28
1.8k
5 minutes of I Can Smell Your CMS
philhawksworth
199
19k
個人開発の失敗を避けるイケてる考え方 / tips for indie hackers
panda_program
60
14k
Transcript
Power
None
electricity 101
https://www.flickr.com/photos/marktee/9223003535 electricity = water
https://www.flickr.com/photos/marktee/9223003535 usb/power cables = garden hose
amps vs. volts
amperage
voltage
volts * amps = watts!
None
power considerations
how much power does each device draw, according to
the manufacturer's specs?
how much power can the surge protector support?
how much power can each usb hub support?
None
build to support your most power-hungry devices
power problems
power problems won’t accept a charge cycle on/off forever won’t
turn on blinking battery can’t hold a charge someone stole the battery
http://www.microsoft.com/surface/en-us/support/warranty-service-and-recovery/
troubleshooting
start simple
"When you see hoof prints, look for horses,
not zebras"
isolate the problem
DEVICE HARDWARE SOFTWARE
DEVICE HARDWARE cables charging port peripherals SOFTWARE battery display
DEVICE HARDWARE SOFTWARE apps operating system your base image cables
charging port peripherals battery display
why?
•devices drew too much power ! •devices weren’t getting enough
power ! •bad USB cables / peripherals ! •bad software ! •bad device
iterating on power
v1 - power strips
v2 - stupid USB hubs
v3 - better USB hubs
Cambrionix hub
Cambrionix hub • 32 ports • smart power delegation •
fault indicator • disables problem devices
v4 - better cabling/monitoring
energy consumption
None
None
pro power tips
http://iheartorganizing.blogspot.com/2012/03/you-asked-organizing-cords.html
have spares/duplicates as back-ups
have extra cables handy for people to steal