11 Aug 2025
Beagle bone blackのI2C経由でIOexpander(みんな大好きMCP23017 )を制御してLチカできました。
ドライバが整備されてるので、
i2cset -y 1 0x20 0x14 0x01
のようにIOexpanderのコマンドバイト列を書くだけでそのまま送ってくれます。
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21 Mar 2025
Get More I/O Now!
Going Beyond Your MCU’s Pin Count
Small #microcontroller design ...CLICK TO READ MORE circuitcellar.com/research-d… #IOExpansion #electronics #TechDesign #embeddedsystems #Shiftregister #hardwaredesign #ESP32 #IOExpander
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3 Nov 2023
ワイのコードが動かんというUSからのクレームに昨日一日デバッグしたが再現せず、「再現せんのでてめえのボード疑えやコラ。おおかたIOExpanderあたりとちゃうのかボケ。（超意訳）」と夜中に適当にメールして、祝日潰れ覚悟で爆睡。で、You are right. Tnx Resolved now.のメール読んで拍子抜けの朝。
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771
13 Jun 2023
𝓝𝓾𝓸𝓿𝓸 𝓟𝓻𝓸𝓰𝓮𝓽𝓽𝓸 𝓭𝓪 𝓕𝓾𝓽𝓾𝓻𝓪𝓷𝓮𝓽!
Sfrutta al massimo l'I/O Expander #MCP23017 di @MicrochipTech per gestire segnali e attuatori.
futuranet.it/progetti/2023/0…
#elettronica #futuranet #elettronicain #arduino #IOexpander #progetti #tecnologia @MicrochipMakes
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22 Mar 2023
Check out this @Hacksterio project to learn how to use the popular IOExpander MCP23008, where you'll get eight additional GPIO pins by using a pair from a Meadow board. wldrn.es/0vg
#meadowiot #wildernesslabs #dotnet #csharp #developer #hardware #hackers #mcp23008
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4,330
19 Dec 2022
Come fare quando il microcontrollore scelto non ha abbastanza pin?
In sei passaggi utilizzeremo il #CD4094 e il #CD4021 con un microcontrollore PIC.
ei.futuranet.it/2022/12/19/c…
@MicrochipTech @MicrochipMakes #elettronica #elettronicain #ioexpander
#pic
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5 Aug 2022
Check out this @Hacksterio project to learn how to use the popular IOExpander MCP23008, where you'll get eight additional GPIO pins by using a pair from the Meadow board. wldrn.es/0vg #dotnet #csharp #iot #mcp23008 #leds #vscode #visualstudio
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8 Nov 2020
I/O expanders can be emulated using an MCU, like the new PIC16F15244 family, helping yield more design flexibility, features and even lower Bill of Materials (BOM). Read the blog to learn more: mchp.us/3mMAtco. #microcontroller #engineering #ioexpander #digital
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3 Oct 2020
Updated my #Arduino port of the @pimoroni IOExpander library to support the new RGB Potentiometer and Rotary Encoder breakouts! Includes classes and example sketches: github.com/ZodiusInfuser/IOE…
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2 Oct 2020
Great to see my port of the IOExpander library getting used! I should be getting a Pot. and Enc. breakout tomorrow so will update the library with more convenient wrapper classes for them
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20 Sep 2020
Awesome ! This release includes support to the MCP23016. And this is the first thing I added to @esphome_ :)
#opensource #esphome #homeassistant #merged #release #io #ioexpander #microchip
14 Sep 2020
Congratulations @esphome_ on the new v1.115 release. Looks great! esphome.io/changelog/v1.15.0…
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18 Aug 2020
Made an #Arduino port of the @pimoroni IOExpander Breakout library! This is my first attempt at such a port, so I would welcome extra eyes to catch anything I may have missed in the process. github.com/ZodiusInfuser/IOE… @Gadgetoid
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16chの絶縁IO Expanderモジュールを公開しました。
GROVE I2Cに接続できます。
（昨日のデモで動かしたサーボシリンダはIOが多いですので、これ経由で制御してます）
IOExpanderのディレクトリに入ってます。
github.com/trihome/Grv_FAMod…
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PiFA(github.com/trihome/RasPi_PiF…)はラズパイ特化なので使えないですが、下記構成でFA用途まで行けます。
・GROVE拡張：marutsu.co.jp/pc/i/829255/
→これ経由のFAレベル変換ボード（私製）
・I2Cコネクタ経由→IOExpander(私製)
（takase先生巻き込みスミマセン！
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12 Feb 2019
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8 Nov 2018
What a beautiful use of #Chronos and our #IOexpander! Great job, Wayne and the @jones_silas_lab! Good luck with your study! 🧠👆👁️👂
8 Nov 2018
Might not look as much but getting towards a set-up so can present tactile, visual, or auditory stim with ms accuracy in sync with tACS. Great work by our MSc student Wayne! @PST_Tweets
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