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 K210 is 1st gen claims to be as cheap as STM32 Now newest is K510, with 3 TOPs processing power Seeeduino  on various K210 based products Huskylens  on Amazon Dfrobot

electricbricks  MindCuber   MOC-10876   CubeStormer from David Gilday : , Mike Dobson ver 2 ver 3, fastest in the world so far( 2014): mirrcub3r:   HKU :   algorithms: thistlewaite two phase   oreilly book

 Tony Yiu made an analysis : GBTC is nothing more than risk if introduced into the portfolio Forbes Fidelity / MicroStrategy offered BTC in 401k  

from dcfever in 2018 set 1:   need to compare side by side the photos at 100%. Then compare the vertical and horizontal lines. after comparing 5 different areas front and behind the subject, B has largest blur, so B is f/1.2.  better to compare by gaussian blur spread, than just by blurriness set 6: 85mm /1.4 has 9 blades, and f/1.8 and f/1.2 has 8 blades. Clearly A is f/1.4 As the photos are not taken with max aperture, you cannot determine by size of bokeh ball. So you can only differentiate by rectilinear distortion, barrel / pincushion. By subtracting B and C photo, however the the picture are not taken in same direction, horizontal is shifted by 30 pixels, vertical by 38 pixels  B has larger rectilinear distortion(barrel), is it's f/1.8. Also, the lower right bokeh is more like a ellipse eye than a circle, so definitely B is f/1.8. C is f/1.2L set 7: by zooming in to 100%, B has highest sharpness/resolution: so B is f/1.2 for set 2,3,4,5, the photos are not taken at...

  Magic Lantern : Found on battery grip in 50D Can use this connection to gain access to EvShell  With this access, you can communicate with DryOS Found on 50D, 5D3, 700D and many others EvShell is the "main" shell on ICU on DSLRs. You can access DryOS Shell using 'drysh' command from EvShell. See https://www.magiclantern.fm/forum/index.php?topic=25662.0 for the general idea, but please note that linked thread is for Digic 8 so not everything will be applicable. On MPU there's a separate shell like that: https://www.magiclantern.fm/forum/index.php?topic=25661.0 Easy to distinguish due to different prompts :) Numbers From screen side 1  to SD card side 6. Canon 70D Screen 1 | 2 | 3 | 4 | 5 | 6| SD card. Pin 1 - ICU TX (must be connected to usb uart RX) Pin 2 - ICU RX (must be connected to usb uart TX) Pin 3 - GND. Connected directly (0 Om) to tripod mount and hot shoe base. Pin 4 - Power (+). Camera off 3.1v, camera on 3.3v Pin 5 - MPU TX (must be connected to usb...

 坐標 33.7789,130.483  suncalc calculation for Feb date:22 Feb, 2022 sunset time: 18:08:26 suncalc calculation for Oct date: 16 Oct 2022 sunset time: 17:43:53

   日本官方調查顯示，日向灘及西南群島海溝周邊30年內可能發生規模7強震，在日向灘的發生率是80%、沖繩與那國島周邊達90%以上。日向灘等地甚至可能發生規模8強震。 NHK     cwb tw

  Howiem github EF-M lens hack on magic lantern , EF protocol from JP79dsfr DSLR de forum crescentvenus github   how to move canon EF lenses   dpreview discussion Canon extender secret via ASCOM    Mount adapter using STMC04 CPU astromechanics   US9638987B2 patent

from now broken freehabr website  translated from russian: Preamble Somehow, my colleagues and I needed to control the Canon EF 200 lens without a camera (and then the Canon EF 85 also appeared). The task at first glance is simple, but in reality everything turned out to be not so simple. After a long search on the Internet, only a control ring offered for 1 thousand “green” was found, connected to a computer via RS-232 (naturally, this was immediately rejected); pinout of the connector with which the lens is connected to the camera; as well as small hints that the SPI interface is used to control the lens. SPI is so SPI. Of the available ones, a microcontroller with an “on-board” SPI (PIC16F873a) was chosen, and on its basis, control electronics were assembled on the breadboard knee (an RS-232 level converter, the microcontroller itself and a 4 MHz quartz resonator - there was no other at hand). Other colleagues begged for a digital oscilloscope with the ability to record measure...

dxyum forum, active 2016 to 2018   From repair manual (pls note camera body pin numbers are reversed from LexOptical's doc)  references: sigrok logic analyser dump dpreview   canon EF-S protocol  As there are already third party lens manufacturers for decades, the communications between the lens and camera body should be known / available for long time. Just it seems to be well kept as NDA. hackers: Entropy512 @AndrewDodd Entropy512 github LexOptical's E-mount protocol doc LexOptical github patent of 8 pin connection which explains a bit more on handshake communication others: micro four third protocol  Projects for further: Open source autofocus adapter, independent of brands - Getting commands from camera and send to this focus adapter - eg deepskydad .  Astromechanic Nucleus nano  from Tilta Follow focus diy  using RC components,  Mikemake Myfocusorpro2 on sourceforge Time of flight 3D point cloud high speed autofocus photo/video in...

  理工大學研發出第三代便攜式新冠病毒檢測儀，可於實驗室外採集樣本即時檢測，40分鐘有結果。 理工大學用一年半時間研發這部便攜式檢測儀器，可用於實驗室以外的地方，同時檢測最多四個人體或環境樣本，儀器利用「恆溫環狀擴增法」RT-LAMP 及「金納米粒子」 gold nanoparticles，透過光學反應進行病毒測試，過程約40分鐘，如果樣本對病毒呈陽性，金納米粒子會沉澱，憑肉眼已可辨別。 團隊目前測試三百多個已抽取出核酸的臨床樣本，靈敏度達百分百，病毒量低亦能成功檢測。 成本是新技術的主要優勢，這部新開發的手提儀器製作成本只是幾千元左右，每一次檢測時所需的消耗品成本大概十至二十元左右，有別一般化驗室需要特定溫度處理及螢光劑當中的儀器及時間成本。 RTHK news .  Polyu

Franche-Compte doubs La famille Pequignet: Emile Pequignet et ses passions : les chevaux et l’horlogerie Laurence Pequignet in Le carnet de Julie       Le Pre Oudot  

 play guitar in ukraine. 

  It's raining microplastics PET, Polystyrene and PE are the major types found Dick Vethaak   deutschlandfunk

 libgphoto document capture:  is located in _CameraFunctions data structure is defined in gphoto2-camera.h First of all, On the camera you have to search if there is " PC Remote " mode, or " PC Control " Mode. Sony A5100 :  Sony A99:   If this is not available, remote capture is likely not possible Libptp is also located under libmtp in Android   Gphoto and gphoto2pp  , which is C++ wrapper of gphoto    together with ddserver: major contributor: Marcus Meissner aka @msmeissn with java: gp2srv   with python   Gphoto ability check  thezanshow  control DSLR via RPi