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
Workshops On Designing Electronic Toys #11
Search
Hirotaka Nakajima
June 17, 2014
0
150
Workshops On Designing Electronic Toys #11
Hirotaka Nakajima
June 17, 2014
Tweet
Share
More Decks by Hirotaka Nakajima
See All by Hirotaka Nakajima
暗号資産カストディアンとセキュリティ
nunnun
0
92
W3Cについて - インターネット標準勉強会 - 若者編
nunnun
0
680
プロフェッショナルSSL/TLS勉強会 PKIに対する攻撃 (第4章)
nunnun
0
1.4k
Paper Summary Encore: Lightweight Measurement of Web Censorship with Cross- Origin Requests
nunnun
0
160
インターネット -第10回- Firefox OSアプリ開発 応用編
nunnun
0
900
Introduction to Server Operations and Automations
nunnun
1
260
Exploring the knowledge on Web
nunnun
2
100
インフラエンジニアのための次世代プロトコル入門 - July TechFesta 2014
nunnun
36
12k
Workshops On Designing Electronic Toys #10
nunnun
0
170
Featured
See All Featured
The Web Performance Landscape in 2024 [PerfNow 2024]
tammyeverts
8
670
A designer walks into a library…
pauljervisheath
207
24k
jQuery: Nuts, Bolts and Bling
dougneiner
63
7.8k
Design and Strategy: How to Deal with People Who Don’t "Get" Design
morganepeng
130
19k
Writing Fast Ruby
sferik
628
62k
Sharpening the Axe: The Primacy of Toolmaking
bcantrill
44
2.4k
4 Signs Your Business is Dying
shpigford
184
22k
Docker and Python
trallard
44
3.4k
Art, The Web, and Tiny UX
lynnandtonic
299
21k
Chrome DevTools: State of the Union 2024 - Debugging React & Beyond
addyosmani
7
710
Put a Button on it: Removing Barriers to Going Fast.
kastner
60
3.9k
Practical Tips for Bootstrapping Information Extraction Pipelines
honnibal
PRO
20
1.3k
Transcript
5IFTFTMJEFTBSFDPQZSJHIU)JSPUBLB/BLBKJNB3FEJTUSJCVUFBOEEJTDMPTVSFPGUIFTFTMJEFTBSFOPUQFSNJUUFEXJUIPVUQFSNJTTJPOT ,FJP6OJWFSTJUZMPHPJTMJDFOTFECZJUTDPQZSJHIUIPMEFST Workshops On Designing Electronic Toys #11 Hirotaka Nakajima
/ @nunnun http://about.me/nunnun 1
5IFTFTMJEFTBSFDPQZSJHIU)JSPUBLB/BLBKJNB3FEJTUSJCVUFBOEEJTDMPTVSFPGUIFTFTMJEFTBSFOPUQFSNJUUFEXJUIPVUQFSNJTTJPOT ,FJP6OJWFSTJUZJTMJDFOTFECZJUTDPQZSJHIUIPMEFST Agenda 2 • Using I2C Sensor • Work
time
5IFTFTMJEFTBSFDPQZSJHIU)JSPUBLB/BLBKJNB3FEJTUSJCVUFBOEEJTDMPTVSFPGUIFTFTMJEFTBSFOPUQFSNJUUFEXJUIPVUQFSNJTTJPOT ,FJP6OJWFSTJUZJTMJDFOTFECZJUTDPQZSJHIUIPMEFST Sensors 3 • Kind • Temperature / Humidity
• Gyroscope / Accelerometer • Photo sensor (LED sensor) • Pressure • Way to connect • Analog • Digital • I2C
5IFTFTMJEFTBSFDPQZSJHIU)JSPUBLB/BLBKJNB3FEJTUSJCVUFBOEEJTDMPTVSFPGUIFTFTMJEFTBSFOPUQFSNJUUFEXJUIPVUQFSNJTTJPOT ,FJP6OJWFSTJUZJTMJDFOTFECZJUTDPQZSJHIUIPMEFST I2C 4 • Inter-Integrated Circuit • Bus spec
for internal device communication • Bus speed: 100kbps, 400kbps ~ 3.4Mbps • Shared 2 physical pins for I/O • Clock signal (SCL) • Data transfer (SDA) • 10k pull-up resistor • Master-Slave model • Binary protocol
5IFTFTMJEFTBSFDPQZSJHIU)JSPUBLB/BLBKJNB3FEJTUSJCVUFBOEEJTDMPTVSFPGUIFTFTMJEFTBSFOPUQFSNJUUFEXJUIPVUQFSNJTTJPOT ,FJP6OJWFSTJUZJTMJDFOTFECZJUTDPQZSJHIUIPMEFST I2C 5 • 1. Start bit (1 bit)
• 2. Slave Address (7 bits) • 3. Read / Write flag • 4. Acknowledgement (1 bit) from slave • 5. Data (8 bits) • 6. Data-Acknowledgement (1 bit) from slave • 7. Stop bit (1 bit) Chart: http://nora66.com/avr/prog2.html
5IFTFTMJEFTBSFDPQZSJHIU)JSPUBLB/BLBKJNB3FEJTUSJCVUFBOEEJTDMPTVSFPGUIFTFTMJEFTBSFOPUQFSNJUUFEXJUIPVUQFSNJTTJPOT ,FJP6OJWFSTJUZJTMJDFOTFECZJUTDPQZSJHIUIPMEFST I2C 6 • 1. Start bit (1 bit)
• 2. Slave Address (7 bits) • 3. Read / Write flag • 4. Acknowledgement (1 bit) from slave • 5. Data (8 bits) from slave • 6. Data-Acknowledgement (1 bit) • 7. Stop bit (1 bit) Chart: http://nora66.com/avr/prog2.html
5IFTFTMJEFTBSFDPQZSJHIU)JSPUBLB/BLBKJNB3FEJTUSJCVUFBOEEJTDMPTVSFPGUIFTFTMJEFTBSFOPUQFSNJUUFEXJUIPVUQFSNJTTJPOT ,FJP6OJWFSTJUZJTMJDFOTFECZJUTDPQZSJHIUIPMEFST I2C with Arduino 7 • Arduino I2C support:
Wire http://www.arduino.cc/en/Reference/Wire • Lots of libraries for sensors • Today we will use GY-80 • L3G4200D (3 axis gyro) • ADXL345 (3 axis accelerometer) • HMC5883L (compass) • BMP085 (temperature & pressure sensor)
5IFTFTMJEFTBSFDPQZSJHIU)JSPUBLB/BLBKJNB3FEJTUSJCVUFBOEEJTDMPTVSFPGUIFTFTMJEFTBSFOPUQFSNJUUFEXJUIPVUQFSNJTTJPOT ,FJP6OJWFSTJUZJTMJDFOTFECZJUTDPQZSJHIUIPMEFST I2C with Arduino 8 • http://web.sfc.keio.ac.jp/~takefuji/gy80.tar • pin
• Arduino: A4 (SDA), A5 (SCL) • GY-80: SCL, SDA
5IFTFTMJEFTBSFDPQZSJHIU)JSPUBLB/BLBKJNB3FEJTUSJCVUFBOEEJTDMPTVSFPGUIFTFTMJEFTBSFOPUQFSNJUUFEXJUIPVUQFSNJTTJPOT ,FJP6OJWFSTJUZJTMJDFOTFECZJUTDPQZSJHIUIPMEFST 9
5IFTFTMJEFTBSFDPQZSJHIU)JSPUBLB/BLBKJNB3FEJTUSJCVUFBOEEJTDMPTVSFPGUIFTFTMJEFTBSFOPUQFSNJUUFEXJUIPVUQFSNJTTJPOT ,FJP6OJWFSTJUZJTMJDFOTFECZJUTDPQZSJHIUIPMEFST 2VFTUJPO $PNNFOUT IJSP!BXBTGDLFJPBDKQ IUUQBCPVUNFOVOOVO !OVOOVO 10