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
School of Maaa Day 2 - Voltage Dividers
Search
Becky Stewart
August 14, 2014
Technology
0
360
School of Maaa Day 2 - Voltage Dividers
Theory behind making your own variable resistor sensors.
Becky Stewart
August 14, 2014
Tweet
Share
More Decks by Becky Stewart
See All by Becky Stewart
Making Grooves With Needles: Using e-textiles to encourage gender diversity in embedded audio systems design
theleadingzero
0
390
Fabricademy: Wearables and E-Textiles II
theleadingzero
0
510
The Emergence of E-Textiles
theleadingzero
0
140
Audio Signal Processing with E-Textiles
theleadingzero
0
170
Cruftfest Kit
theleadingzero
0
150
Audio and E-Textiles
theleadingzero
0
350
So You Want to Make a Wearable
theleadingzero
0
88
School of Maaa Day 3 - Capacitive Sensing
theleadingzero
0
420
School of Maaa Day 1 - Switches
theleadingzero
0
5.6k
Other Decks in Technology
See All in Technology
Delegating the chores of authenticating users to Keycloak
ahus1
0
140
生成AI活用の組織格差を解消する 〜ビジネス職のCursor導入が開発効率に与えた好循環〜 / Closing the Organizational Gap in AI Adoption
upamune
7
5.3k
マネジメントって難しい、けどおもしろい / Management is tough, but fun! #em_findy
ar_tama
7
1.1k
american aa airlines®️ USA Contact Numbers: Complete 2025 Support Guide
aaguide
0
210
スタートアップに選択肢を 〜生成AIを活用したセカンダリー事業への挑戦〜
nstock
0
210
KubeCon + CloudNativeCon Japan 2025 Recap Opening & Choose Your Own Adventureシリーズまとめ
mmmatsuda
0
280
改めてAWS WAFを振り返る~業務で使うためのポイント~
masakiokuda
2
260
Enhancing SaaS Product Reliability and Release Velocity through Optimized Testing Approach
ropqa
1
230
React開発にStorybookとCopilotを導入して、爆速でUIを編集・確認する方法
yu_kod
1
280
SmartNewsにおける 1000+ノード規模 K8s基盤 でのコスト最適化 – Spot・Gravitonの大規模導入への挑戦
vsanna2
0
140
開発生産性を組織全体の「生産性」へ! 部門間連携の壁を越える実践的ステップ
sudo5in5k
2
7.2k
B2C&B2B&社内向けサービスを抱える開発組織におけるサービス価値を最大化するイニシアチブ管理
belongadmin
1
7.1k
Featured
See All Featured
Six Lessons from altMBA
skipperchong
28
3.9k
Navigating Team Friction
lara
187
15k
The Invisible Side of Design
smashingmag
301
51k
ReactJS: Keep Simple. Everything can be a component!
pedronauck
667
120k
A Modern Web Designer's Workflow
chriscoyier
695
190k
I Don’t Have Time: Getting Over the Fear to Launch Your Podcast
jcasabona
32
2.4k
How to train your dragon (web standard)
notwaldorf
95
6.1k
Creating an realtime collaboration tool: Agile Flush - .NET Oxford
marcduiker
30
2.1k
The World Runs on Bad Software
bkeepers
PRO
69
11k
Let's Do A Bunch of Simple Stuff to Make Websites Faster
chriscoyier
507
140k
RailsConf 2023
tenderlove
30
1.1k
Git: the NoSQL Database
bkeepers
PRO
430
65k
Transcript
Voltage Dividers
Pressure Sensor Cushion Pauline Vierne http://etextile-summercamp.org/2014/pressure-sensor-cushion/
LaceSensor Dresses Anja Hertenberger and Meg Grant http://lacesensorproject.com/
Mi.Mu Gloves http://theglovesproject.com/
Stretch Sensor
Soft Potentiometers
Squeeze Sensor
Arduinos can only watch changes in voltage. ! Not changes
in resistance or current.
But we can turn a changing current or resistance into
a changing voltage by being clever.
Vin Vout GND GND R1 R2 Voltage Divider
Vin Vout 5V GND GND R1 R2 Something between 5V
and GND Voltage Divider
Vin Vout 5V GND GND R1 R2 Something between 5V
and GND Voltage Divider
Vin Vout 5V GND GND R1 R2 Something between 5V
and GND Voltage Divider = Vout Vin x R1 + R2 R2
Vin Vout GND GND R2 Voltage Divider R1 knit sensor
Vin Vout GND GND R2 Voltage Divider R1 knit sensor
Voltage Divider
Vin Vout GND R1 R2 Voltage Divider potentiometer *In this
circuit, both R1 and R2 are changing when the knob is turned.
Voltage Divider 1. Does the object change resistance when you
interact with it? Check with a multimeter. 2. If does, create a voltage divider. Decide if you want the object to be R1 or R2. 3. Choose a static resistor that gives you the values you are looking for.
Challenge Create an analog sensor using soft materials. Demonstrate it
working with an Arduino.