The Uni-body Aluminium case protects your Raspberry Pi from damage and also cool as a thermal conduction.
《特色》
【Silent & passive Cooling】 100% Aluminum Alloy material cools the Raspberry Pi as a heat-sink and comes with Silicone thermal pads for CPU, SDRAM and USB chip provides excellent heat dissipation.
【Durable & Quality】Alloy aluminum oxidation greatly improves the corrosion resistance, hardness, wear resistance, insulation, heat resistance of the cooler, and prolongs the service life.
【 High Performance 】 Optional installation for 25/30mm fan provides the best cooling potential to avoid overheating and create the perfect performance for Raspberry Pi4.
【Easy Access】- Aluminum casing with cutouts for GPIO / Camera / DSI display cable. Extra space for Pi POE Hat and Sense Hat. Obvious lights show the system status.
【 WiFi signal strength 】No limitation for WiFi due to Plastic Base; Using ABS UL 94V0 specifications material for flame retardant.
《規格》
AVAILABLE COLOR : Black
MATERIAL : Aluminum (1.5~4mm) , Glassy Acylic (5mm) ,Rubber
DIMENSION : L*W*H=92.05*67.25*39.5 mm / 3.62 x 2.65 x 1.56 inches
【Silent & passive Cooling】 100% Aluminum Alloy material cools the Raspberry Pi as a heatsink and comes with Silicone thermal pads for CPU, SDRAM and USB chip provides excellent heat dissipation.
【 High Performance 】 Optional installation for 25/30mm fan provides the best cooling potential to avoid overheating and create the perfect performance for Pi4. Max 1.28in / 32.5mm internal space with spacers.
【 WiFi signal strength 】No limitation for WiFi due to Plastic Base; Using ABS UL 94V0 specifications material for flame retardance.
【Easy Access】- Aluminum casing with cutouts for GPIO / Camera / DSI display cable. Extra space for Pi POE Hat (Need 4/40 pin extra tall Header) and Sense Hat. Obvious lights show the system status.
【Durable & Quality】Alloy aluminum oxidation greatly improves the corrosion resistance, hardness, wear resistance, insulation, heat resistance of the cooler, and prolongs the service life.
截至 2020 年底，Raspberry Pi 已經銷售了三千七百萬台，並且被廣泛應用在個人創客、學校教學或是量產品上。但如果是想做單純 I/O 功能的應用，就需要考慮使用樹莓派的限制了。因為 Raspberry Pi 的功耗至少是 100 毫瓦(milliwatts)起跳，而且 Raspberry Pi(包括 Zero 系列)都沒有支援類比輸入，而使用 Linux 作業系統更不適合低延遲的場景。
The 33th the Raspberry Pi meetup, the topic is “Raspberry Pi 4 + Ubuntu and Boot Analysis”.
Speaker 1: Taiten(Canonical)
Topic：Snap your application for embedded system
1) Snap and Ubuntu Store for IoT
2) Snap vs Docker
3) Snap your app demo
Speaker 2: StarNight
Topic: A journey to boot Linux on Raspberry Pi
Outline:
I will share several possible boot process of Linux distribution on Raspberry Pi, and the boot process of a Linux distribution with OSTree technology. Take Endless OS booting on Raspberry Pi as an example.
Lightning Talk 1: Alvin(Creative5)
Topic: Running Compal 5G module on Raspberry Pi 4
第三十三次 Raspberry Pi 社群聚會，希望能透過社群活動的分享和交流，找到更多 Raspberry Pi 的可能。本次主題是「Raspberry Pi 4 + Ubuntu 和系統開機分析 」。
分享者1：Taiten(Canonical)
題目：Snap your application for embedded system
1) Snap and Ubuntu Store for IoT
2) Snap vs Docker
3) Snap your app demo
分享者2：StarNight
題目：A journey to boot Linux on Raspberry Pi
大綱：本次將分享幾個 Linux distribution 在 Raspberry Pi 的可能開機過程，以及自己實做一個搭配 OSTree 技術的 Linux distribution 的開機流程。以 Endless OS 在 Raspberry Pi 上開機為例。
透過觀察幾個 Linux distribution 的開機過程，發現 U-Boot 可以做到將開機過程分為「高度硬體相關」與「一般系統皆可通用」的兩大步驟。特別是「一般系統皆可通用」的開機步驟，滿足搭配 OSTree 技術的系統(包含，但不限於)有方便、一致的開機模式需求。更進一步，有機會解決各硬體專屬 Device Tree 的佈署問題。
這次將分享如何實做讓系統在 Raspberry Pi 上開機的過程！
The 32th the Raspberry Pi meetup, the topic is “The applications of Raspberry Pi HAT, part 2”.
Speaker 1: Mikey(Banana Pi)
Topic：How does a AIoT chip start to open source – BPI-EAI80
1) The air-conditioning giant Zhuhai GREE’s open source road
2) Meet GREE Edgeless AIoT-EAI80
3) How BPI-EAI80 works with Raspberry Pi and Arduino
4) Make AI products without understanding AI with BPI-EAI80
5) Demo
Speaker 2: sosorry
Topic: Prototyping with Raspberry Pi HAT
1) The Power Management & UPS HAT
2) The Enviro + Air Quality HAT
3) The NB-IoT HAT
Additional Information:
2020/09/28 19:00 ~ 21:30
2F., No.105, Sec. 1, Chongqing S. Rd., Zhongzheng Dist., Taipei City
2020-05-27:
* Added Bookshelf application
* Added Raspberry Pi Diagnostics application
* Added magnifier plugin to taskbar - needs magnifier application installed from Recommended Software to enable
* Added Magnifier application to Recommended Software
* Added marketing questionnaire as initial Chromium tab
* Version 0.25 of Scratch 2 included - uses external application to access IMU on SenseHAT
* Version 1.0.5 of Scratch 3 included - uses external application to access IMU on SenseHAT
* Version 32.0.0.371 of Flash player included
* Version 1.0.6 of Node-RED included
* Version 6.7.1 of VNC Server included
* Version 6.20.113 of VNC Client included
* Internal audio outputs enabled as separate ALSA devices
* MagPi preinstall removed and replaced with Beginner’s Guide
* MagPi weblink removed from main menu
* Chromium made default application for PDF files
* Common icon loading code for lxpanel plugins used
* Italian translations added
* Initial move of mouse pointer to menu button disabled
* Padding at left of menu button removed
* Focus behaviour changed so that focus moves to desktop if no windows are opened - improves reliability of Orca screen reader
* Bug fix - focus bug in volume plugin
* Bug fix - keyboard repeat interval bug in Mouse & Keyboard Settings
* Bug fix - battery detection bug in battery plugin
* Bug fix - spurious active areas on taskbar when plugins are hidden
* Bug fix - occasional crash in file manager on file selection
* Disk ID is now regenerated on first boot
* Updated udev rules
- Remove unused argon rule
- Add vcsm-cma to video group
- Add pwm to gpio group
* i2cprobe: More flexible I2C/SPI alias mapping
* Raspberry Pi firmware 21e1fe3477ffb708a5736ed61a924fd650031136
* Linux kernel 4.19.118
This product is designed to solve the problem of power supply, a persistent challenge for the majority of IoT projects. The uninterruptible HAT will manage sources between batteries and adapters intelligently, ensuring that your device always stays powered without letting your Pi hang up or reset switches seamlessly. RTC featured integrated MCU allows you to schedule and to have full control over the power on/off tasks remotely, timely, and securely. Extensive input range and options – solar included – will provide flexibility to choose the best power options to fit your device needs.
《Description》
The Raspberry Pi needs to be always powered up on edge which is why the HAT will take care of your device, keeping it powered. You will have full control over its power! The true uninterruptible power supply for Raspberry Pi automatically switches between different power sources without causing a reset or failure on your board. A real-time clock(RTC) featured an onboard ARM® Cortex®-M0+ microcontroller lets you schedule power cycles and wake-up or soft shut down Raspberry Pi remotely. At power-sensitive applications, the device can be entered deep sleep modes and save battery. Dynamic power management means will share the load between the main source and the battery while protecting the circuit.
《Features》
True Uninterruptible Power Supply(UPS) battery rechargeable solution without Failing the Raspberry Pi.
3.9V to 21V Input Operating Voltage Range Supports Solar Panels.
18650 Li-on Separable Battery Holder (Compatible with unprotected flat top 18650 batteries).
1-cell 3.7V External Battery Input.
Compatible with Raspberry Pi Universal Power Supplies.
Onboard ARM® Cortex®-M0+ MCU manages scheduled power tasks, calendar events with Real-time Clock (RTC), graceful shutdown or wake-up, sleep mode controls.
Parallel Charging up to 3 Amps while powering the system.
Input, System and Battery current monitor.
Control over current limits of batteries and sources with 50mA resolution.
Battery protection circuit enhanced with integrated temperature sensors.
Thermal Shutdown and Input, System, Battery Overvoltage Protection.
Dynamic power management boost the system output from the battery if the needed power is more than the input supply provides.
Supports external GPIO interrupts to wake up or enter deep-sleep modes.
Only I2C pins used by the HAT.
Onboard STEMMA QT/Qwiic/JST SH connector.
Programmable user buttons and RGB LEDs.
Smart Cooling FAN with Pulse Signal Feedback.
Battery level indicator LEDs with charging/discharging status.
Slot for Raspberry Pi Camera Cable.
Optional Pogo Spring Pins for hardware shutdown or wake up.
Cloud Sixfab Power Software to configure and monitor your devices remotely. (Optional)
1x Aluminum Heatsink with Thermal Tape for Raspberry Pi
1x Battery Cable JST-SFH – 150mm
1x Qwiic Cable – 200mm
1x Female GPIO Stackable Header 2×20
1x Female Extra Tall GPIO Stackable Header 2×20
1x Pogo Pin
1x Mini Flat Head Screwdriver
6x Mounting screws (2 for Fan & 4 for HAT mounting)
2x Hex nut for Fan mount
2x Threaded Standoffs – 16mm
NOTE：18650 battery and Raspberry Pi is not included.
《Power Software》
One of the biggest problems of remote projects is keeping the devices all-time-powered on the edge and knowledge of the power status. While stacking the UPS HAT with a battery solves the problem as standalone. The user can manage the UPS HAT via the Sixfab Power Management Platform remotely. The detailed battery and main power source diagnostics are available to ease the maintenance. An ultra-lightweight service agent works on the Raspberry Pi and communicates with the platform if you have an Internet connection via ethernet, Wi-Fi, or Cellular.
《Power Software Features》
Diagnostics
Charging status, Battery Percentage, and Health
Main Power Source Plugged or Unplugged
Input/Output Voltage Level and Current Consumption
Temperatures of Raspberry Pi, HAT, and Battery Holder Board
Cooling Fan Working Status and RPM
Custom Time Graphs on the Dashboard
Configurables
Firmware of the microcontroller on the HAT and the service agent on the Raspberry Pi can be updated remotely
Scheduling wake-up/shutdown time or routines
Creating e-mail alarms when a parameter exceeds certain thresholds
Battery capacity can be updated for a precise percentage calculation (2500mAh by default)
Safe autonomous soft shutdown and maximum charging percentage limits of the battery can be changed (20%-80% by default)
Temperature limit that starts the cooling fan can be updated (40°C / 104°F by default)
LED color and animation of L1 RGB can be updated (Red-heartbeat by default)
The timezone of UPS HAT can be selected for calendar events
Raspberry Pi Jam in Taipei 2020 是一個慶祝樹莓派生日的活動。樹莓派到了今年春天已經是第八年了，所以樹莓派基金會籌劃了這樣的活動：”慶祝來自世界各地的樹莓派的生日”。
從 2/15 和 3/15 這段期間，全球各地會有超過一百個慶祝活動，我們舉辦的 Raspberry Pi Jam in Taipei 2020 會在台北一同響應，活動將在 3/14 邀請各地的朋友分享有趣的專案，也會邀請之前的講者一起來聊聊天，並且發放 Raspberry Pi Jam 小禮物。
這次活動的內容包括有︰
1. 披薩和可樂 ==> 對的，這是慶生會必要的餐點!
2. 閃電秀分享。
閃電秀持續更新中…
===
1. Peter Lai(Diode)。
> How to use Pi (Pi Zero W) to stream video through diodechain network。
* How to stream video from Pi
* Introduction of diodechain network
* Demo streaming video through diodechain network
Raspberry Pi Foundation is coordinating Raspberry Jam events to take place around the world during 2/15 to 3/15, so that as many people as possible can join in. We will host the Raspberry Pi Jam in Taipei 2020, the detail are shown belows:
1. PIZZA and COKE
2. New Raspberry Pi Projects
lightning talk…
===
1. Peter Lai(Diode)。
> How to use Pi (Pi Zero W) to stream video through diodechain network。
* How to stream video from Pi
* Introduction of diodechain network
* Demo streaming video through diodechain network
2. Daniel Chen(Winyam.Maker)
> 「DalaTone」– Use Raspberry Pi to turn your phone into a guide / intercom
* Overview of the functions and applications of traditional radio guides
*「Introduction of 「DalaTone」(Raspberry Pi as host server. Software and hardware architecture of the「DalaTone」. Functions and features of the「DalaTone」)
* DEMO
3. Ledger
> Raspberry Pi Power Management
* Introduction to Raspberry Pi power management
* Raspberry Pi PMIC(Power Management IC)
* The problem of Pi 3B+
* The change of Pi 4
4. 彭聖智、周詠健(NTUST BEST Lab)
> Self-driving in Raspberry Pi上 – Duckietown
* Introduction to Duckietown
* Introduction to Self-driving System Course
* The 1st Self-Driving System Competition
5. 黃尹謙、梁舜勛(台大機械賽車隊-圓夢方程式)
> NTU epsilon Racing Car: From Zero to One
* Racing car data collection
* Real-time pose estimation
* Automotive real time data analytics
* Sensor fusion
6. Philipz(Docker.Taipei Orgranizer)
> Introduction to Docker Buildx
===
Additional Information:
2020/03/14 13:00 ~ 2020/03/14 17:00
2F., No.105, Sec. 1, Chongqing S. Rd., Zhongzheng Dist., Taipei City
除了 Puffin Web Browser 和主打教育市場的 Puffin Internet Terminal 以外，CloudMosa 正在做可以跑在手機上的 Puffin OS ，希望能讓低階手機更為普及，彌平世界數位落差。
Puffin Internet Terminal 是一個瀏覽器的解決方案。能讓 Raspberry Pi 3 Model B+($35)的瀏覽網頁體驗可以媲美要價上千元 ChromeBook，並降低使用網路取得資訊的門檻。
由於學校單位大量使用 Adobe Flash 技術，Puffin Internet Terminal 可以跨平台和跨瀏覽器的特性讓許多教育單位採用。
由於越來越多的應用程式是以網頁(Web)的方式呈現，因此 Puffin Internet Terminal 的高效能也是主打特色之一。Swind 也展示了和 Chromium 的效能比較，是使用 JetStream 做評比，分數越高越好。
要介紹 Puffin Internet Terminal 就直接介紹 Puffin Browser，兩者在架構上是一樣的。Puffin Browser 的架構是，用戶端(Browser)不會直接連到 Web Server，而是透過 Puffin Cloud Server 向 Web Server 做請求，再回傳到用戶端。這樣的技術似乎和 Proxy 很像，但 Proxy 雖然會做快取(cache)或是壓縮，但並不會幫忙做運算，因此傳回到用戶端的資料還是需要用戶端即時運算顯示。這樣的問題是現行的網頁特效很多，如果將運算都移到用戶端，那用戶端的裝置需要在一定的規格以上才能有良好體驗。
所以 Puffin Browser 就像是一個 Remote Browser，幫用戶端在 Puffin Cloud Server 運算完畢後再將運算結果回傳。也因為雲端已經做完運算，等於節省用戶手機上的運算流量，幫沒有網路吃到飽方案的用戶省下費用。
Puffin Browser 能跑得這麼快的第二個原因是歸功於 Puffin Cloud Server 的佈建。CloudMosa 目前有三個資料中心(Data Center)，近萬台獨立的中高階實體伺服器與擁有近萬個 Public IP，這樣就可以快速的和全球各地的網頁伺服器進行高速傳輸。
除了架設伺服器做 remote browser 以外，Puffin Browser 可以用資料中心超快的網路去 Web Server 取得資料，還能因此大量減少 Client 與 Server 之間 資料傳輸的次數以及傳輸量，達到快速的回應時間。
而 Puffin Internet Terminal 針對 Raspberry Pi 的優化包括有。
1. 因為效能考量而不使用 Windows 版本正在用的 React Native，改使用 GTK 重新開發。
2. 支援 Raspberry Pi 的 GPU。
大家對於 Puffin Internet Terminal 後端的運作原理非常感興趣，對資源分配與安全性等都提出相關問題。因此 CloudMosa 的 Brian 在 QA 時間也回答了許多技術細節。
Bofu 再利用 YouBike 的演進說明了 Server AI 和 Edge AI 的分別。在過去，所有借還 YouBike 必須要先使用悠遊卡在 YouBike 的基站感應，而該站台會連回雲端主機，有著運算資源充沛、中央控管和容易追蹤各裝置狀況等優點。但也有受到基礎建設的限制或是佈署花費較高等缺點。這樣透過基站來計算處理資訊的方式稱為是 Server AI，也就是 YouBike 1.0。
整個操作情境，可以這樣舉例。如果你有一個手機當作影像的輸入來源，接著在 Raspberry Pi 跑 BerryNet，你就可以很輕鬆的透過可能是 RTSP 的協定將影像接到 Pi 上，並初始化 BerryNet 上的 TensorFlow Lite，決定好儀表板的顯示方式輸出到外接螢幕，如此一來我們就完成一個 BerryNet 的基本設定。
接著我們就可以在螢幕上顯示推論結果(Dashboard)，例如物件辨識，將辨認出的物體標記出來。
根據上一個範例，你可以發現使用者很輕鬆的就可以搭建出 AIOT 的應用，當然你會需要先準備一些硬體，包括 Raspberry Pi 和 Pi Camera 等。
如果你不想準備這些硬體與額外的設定，DT42 也在 Kickstarter 發起了 AIKEA 的群幕專案，標的物是是家庭的私有攝影機。但如果你仔細看專案說明，就會知道支持者最後會拿到 Pi 4B 和 Pi Camera 還有一個外盒。這是 DT42 團隊想要表達，使用者不需要花大錢買昂貴的硬體，只要使用手邊的裝置就可以建構出 AIOT 的應用。
The official and recommended USB-C power supply for Raspberry Pi 4
《規格》
* 45 X 48 X 27mm (不含線長及插頭長)
* 線長：約 1.5M(18 AWG captive cable)
* 插頭類型：USB Type-C
* Input：96V-264V AC
* Output：5.1V DC up to 3.0 A
* 輸出功率：15.3W
* 具短路、過載及過熱保護
* 顏色：黑色 / 白色隨機出貨
Tower structure,RGB LED,5mm copper tube, multi-layer heat sinks, 7 blades powerful fan, all those combinations make this super radiator for Raspberry Pi 4 / 3. In the case of overclocking, it can reduce the temperature of the Raspberry Pi from 80℃ to 40℃
第 13 章 打造 LINE 聊天機器人
13-1 LINE bot 聊天機器人程式開發
13-2 製作一個 LINE Echo Bot
13-3 在本機電腦上測試第一個 LINE 程式
13-4 接收與解析 LINE 的訊息
13-5 紀錄心情留言悄悄話
13-6 LINE 線上報修
13-7 建立 LINE 圖文選單
