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BUNNIE'S BLOG
The ware for September 2019 is an Ameda Purely Yours Breast Pump. There’s actually a teardown of this ware on another blog.The gold strips are positions sensors for a syringe pump driven by a leadscrew.
NAME THAT WARE MAY 2021 « BUNNIE'S BLOG Name that Ware May 2021. The Ware for May 2021 is shown below: This ware might be a bit too bespoke for a fair shake at guessing what it is, but based on the previous months’ performances, maybe we’re due for something on the more difficult side. I did rather like the nice patch boards partially visible in the bottom of the photos. NAME THAT WARE APRIL 2021 « BUNNIE'S BLOG Name that Ware April 2021. The Ware for April 2021 is shown below. Both boards are from the same machine. I really admire the construction quality of these boards! Thanks again to Don Straney for contributing these fascinating wares. This entry was posted on Friday, April 30th, 2021 at 7:00 pm and is filed under name that ware .BUNNIE'S BLOG
The ware for December 2016 is a diaper making machine. The same machine can be configured for making sanitary napkins or diapers by swapping out the die cut rollers and base material; in fact, the line next to the one pictured was producing sanitary napkins at the time this photo was taken. AN OSCILLOSCOPE MODULE FOR NOVENA « BUNNIE'S BLOG An Oscilloscope Module for Novena. One of Novena’s most distinctive features is its FPGA co-processor. An FPGA, or Field Programmable Gate Array, is a sea of logic gates and memory elements that can be wired up according to hardware descriptions programmed in languages such as Verilog or VHDL. Verilog can be thought of as a very strictly LITEX VS. VIVADO: FIRST IMPRESSIONS « BUNNIE'S BLOG The main thing that’s got me excited about LiteX is the speed and efficiency of its high-level synthesis. LiteX produces a design that uses about 20% of an XC7A50 FPGA with a runtime of about 10 minutes, whereas Vivado produces a design that consumes 85% of the same FPGA with a runtime of about 30-45 minutes. Significantly, LiteX tends to MODIFYING THE S400 SCANNER FOR WATERMARK Modifying the S400 Scanner for Watermark Enhancement. For some background on this page, please refer to this post. A Microtek S400 scanner has sufficient resolution and color detail to resolve the watermarks printed on color lasjerjet printers. In Photoshop, you can play around with the color balance and thresholding to see the faintyellow
FORMLABS FORM 3 TEARDOWN « BUNNIE'S BLOG The Light Processing Unit, or LPU, is the new “engine” of the Form 3. It’s the solid looking metal box that parks on the right hand side of the Form 3 when it’s idle, and scans back and forth across the print area during printing. The LPU is a huge departure from the architecture of the previous Form 1 FORMLABS FORM 2 TEARDOWN « BUNNIE'S BLOG Formlabs Form 2 Teardown. I don’t do many teardowns on this blog, as several other websites already do an excellent job of that, but when I was given the chance to take apart a Formlabs Form 2, I was more than happy to oblige. About three yeargalvos ago, I had posted a teardown of a Form 1, which I received as a Kickstarter backer reward. BUNNIE'S BLOGBETRUSTEDHACKINGOPEN SOURCEPRECURSOR10 COMMENTSCOVID-19 March 31st, 2021. The ware is a sampling mixer from an HP 8508A vector voltmeter – foreground is a VCO and step generator that sends trigger pulses to samplers on both of the 2 input channels. The wiper is used to equalize the delay between the two channels. I found Cody’s analysis to be interesting and thought-provoking, so I’llgive him
BUNNIE'S BLOG
The ware for September 2019 is an Ameda Purely Yours Breast Pump. There’s actually a teardown of this ware on another blog.The gold strips are positions sensors for a syringe pump driven by a leadscrew.
NAME THAT WARE MAY 2021 « BUNNIE'S BLOG Name that Ware May 2021. The Ware for May 2021 is shown below: This ware might be a bit too bespoke for a fair shake at guessing what it is, but based on the previous months’ performances, maybe we’re due for something on the more difficult side. I did rather like the nice patch boards partially visible in the bottom of the photos. NAME THAT WARE APRIL 2021 « BUNNIE'S BLOG Name that Ware April 2021. The Ware for April 2021 is shown below. Both boards are from the same machine. I really admire the construction quality of these boards! Thanks again to Don Straney for contributing these fascinating wares. This entry was posted on Friday, April 30th, 2021 at 7:00 pm and is filed under name that ware .BUNNIE'S BLOG
The ware for December 2016 is a diaper making machine. The same machine can be configured for making sanitary napkins or diapers by swapping out the die cut rollers and base material; in fact, the line next to the one pictured was producing sanitary napkins at the time this photo was taken. AN OSCILLOSCOPE MODULE FOR NOVENA « BUNNIE'S BLOG An Oscilloscope Module for Novena. One of Novena’s most distinctive features is its FPGA co-processor. An FPGA, or Field Programmable Gate Array, is a sea of logic gates and memory elements that can be wired up according to hardware descriptions programmed in languages such as Verilog or VHDL. Verilog can be thought of as a very strictly LITEX VS. VIVADO: FIRST IMPRESSIONS « BUNNIE'S BLOG The main thing that’s got me excited about LiteX is the speed and efficiency of its high-level synthesis. LiteX produces a design that uses about 20% of an XC7A50 FPGA with a runtime of about 10 minutes, whereas Vivado produces a design that consumes 85% of the same FPGA with a runtime of about 30-45 minutes. Significantly, LiteX tends to MODIFYING THE S400 SCANNER FOR WATERMARK Modifying the S400 Scanner for Watermark Enhancement. For some background on this page, please refer to this post. A Microtek S400 scanner has sufficient resolution and color detail to resolve the watermarks printed on color lasjerjet printers. In Photoshop, you can play around with the color balance and thresholding to see the faintyellow
FORMLABS FORM 3 TEARDOWN « BUNNIE'S BLOG The Light Processing Unit, or LPU, is the new “engine” of the Form 3. It’s the solid looking metal box that parks on the right hand side of the Form 3 when it’s idle, and scans back and forth across the print area during printing. The LPU is a huge departure from the architecture of the previous Form 1 FORMLABS FORM 2 TEARDOWN « BUNNIE'S BLOG Formlabs Form 2 Teardown. I don’t do many teardowns on this blog, as several other websites already do an excellent job of that, but when I was given the chance to take apart a Formlabs Form 2, I was more than happy to oblige. About three yeargalvos ago, I had posted a teardown of a Form 1, which I received as a Kickstarter backer reward.BUNNIE'S BLOG
The Ware for January 2021 is a LogiMetrics 921A RF signal generator. Or at least, that’s what the caption says on the picture that was sent to me; the insides don’t quite match up with other photos on the Internet, but it also seems there were a few revisions of the equipment over time, plus various enthusiasts have taken it upon themselves to overhaul their devices before passing them onBUNNIE'S BLOG
The Ware for October 2020 is a VL53L1 time of flight distance sensor. It incorporates both a vertically-firing laser (small, square die on the left hand side) and the associated sensing circuitry to measure the time it takes for light to travel over short distances, into a package that’s smaller than a pinky nail — it’s the sort of thing that would have sounded like science fiction aBUNNIE'S BLOG
The ware for February 2020 was a Young Model 32400 “serial interface” wind monitor. The exact model is tricky, because the 32500 and the 32400 share a lot of the same circuitry, and the electric compass feature is mainly an add-on to the wind sensor so you can get an absolute direction of the wind rather an offset from an arbitrary zero point.BUNNIE'S BLOG
The ware for December 2016 is a diaper making machine. The same machine can be configured for making sanitary napkins or diapers by swapping out the die cut rollers and base material; in fact, the line next to the one pictured was producing sanitary napkins at the time this photo was taken. NAME THAT WARE MAY 2021 « BUNNIE'S BLOG Name that Ware May 2021. The Ware for May 2021 is shown below: This ware might be a bit too bespoke for a fair shake at guessing what it is, but based on the previous months’ performances, maybe we’re due for something on the more difficult side. I did rather like the nice patch boards partially visible in the bottom of the photos.BUNNIE'S BLOG
The ware for July 2019 was an Adtek aISA-P21, 16 input, 16 output isolated parallel I/O board. I really do admire how clean, crisp and orderly the board layout is on this one.BUNNIE'S BLOG
The ware for September 2019 is an Ameda Purely Yours Breast Pump. There’s actually a teardown of this ware on another blog.The gold strips are positions sensors for a syringe pump driven by a leadscrew.
BUNNIE'S BLOG
The ware for August 2017 is the controller IC for a self-flashing (two-pin, T1 case) RGB LED. It’s photographed through the lens of the LED, which is why the die appears so distorted.BUNNIE'S BLOG
The ware for January 2020 is the brains of an IQ Motion Control position module.Congrats to Cody for guessing it, email me for your prize! And yes, I did blog about the modules a couple years ago, and since then I’ve found them to be an indispensable element of my mechatronic design toolbox. I’m just finishing up on delivering another successful design using these, so I had a couple extraBUNNIE'S BLOG
The winner for January 2019 is Adam! Congrats, email me to claim your prize. This ware was an easy one, but I love retro-wares like this TI PHP1500 speech synthesizer. ------------------------- NAME THAT WARE SEPTEMBER 2019 September 30th, 2019 The Ware for September 2019 is shown below. Zilog. Now there’s a name that brings back memories! Thanks to jackw01 for contributing this ware! Posted in name that ware| 8 Comments »
WINNER, NAME THAT WARE AUGUST 2019 September 30th, 2019 The ware for August 2019 is the main logic board from a Brother QL570 label printer. Congrats to Adrian for nailing it! Great sleuthing work, email me for your prize. Posted in name that ware| No Comments »
NAME THAT WARE, AUGUST 2019August 31st, 2019
The Ware for August 2019 is shown below. This was a victim of an *ahem* “minor water spill” in my lab (oops) so I tore it apart to check for damage. Fortunately, it was distilled water so it survived without any ill effects. Posted in name that ware| 17 Comments »
WINNER, NAME THAT WARE JULY 2019August 31st, 2019
The ware for July 2019 was an Adtek aISA-P21, 16 input, 16 output isolated parallel I/O board. I really do admire how clean, crisp and orderly the board layout is on this one. It definitely bears several hallmarks of a Japanese design aesthetic, from the style of the SOICs to the font choice to the general organization and tidiness of theboard assembly.
Congrats to Adam for nailing it, email me for your prize! I’d love to know more about how you knew what it was — had you encountered the board before? Or just a lot of sleuthing through the Internet. Either way, I didn’t expect anyone to get this one down to the exactmake and model.
Posted in name that ware| No Comments »
OBITUARY: GAVIN ZHAOAugust 10th, 2019
If you look inside “The Essential Guide to Electronics inShenzhen”
,
you will find the following inscription:> To Gavin Zhao
>
> For opening my eyes to the real China. > You have been a great teacher and mentor; > I can do now what I once thought was impossible.>
> I hope you win your battle with cancer, > so that you can continue to mentor and inspire more people like me. That was written about four years ago. Today, August 9, 2019 at 1:34PM, he lost his battle with cancer. He died while I was on an airplane flying from Singapore to China to see him, perhaps for one last time…seems I was a few hours too late. As a professional, Gavin interacted primarily with me as a project manager. He was instrumental in helping to build Novena,
Chibitronics , Fernvale , and many more projects big and small. What made him special was not that he was a genius in electronics or process engineering. His degree was in Western Philosophy: he understood how people worked, both in terms of their minds and their hearts. He thought deeply on all issues, big and small; formed his own opinions about government and politics, and as such, always had to straddle a fuzzy gray line living in China. Part engineer, part troublemaker – we got along well. I often referred to Gavin as my cultural Rosetta Stone. We used to spend long afternoons discussing politics in China, comparing the merits of democracy and communism. There are plusses and minuses to both philosophies. He would archive and share with me stories and posts censored by the Chinese government; I would bring him copies of the New York Times and new books to read. He could explain the deep meaning behind some subtle government actions that would almost seem routine to a Westerner. The problem is, coming from my American background, there are so many mind-blowing things to learn about Chinese politics, we could never have enough time together to discuss. We’d meet for tea at noon and before we knew it, the sun was down. I started the Betrusted project in part because I wanted to be able to spend more time learning from Gavin – unfortunately, it just wasn’t safe for us to correspond via the Internet about some of the ideas and concepts I wanted to learn, so our political discussions were always face to face. Betrusted will come too late for Gavin, but hopefully not too late for others. Gavin studied many religions, including Buddhism, Christianity, Judaism, Islam and Confucianism. Of all the religions, Gavin felt Confucianism was his favorite. It is a very practical religion, built around the fabric of human society, and not around some abstract ideals. Because human fabric is messy, understanding how to apply Confucianism correctly essentially requires the study of philosophy: one cannot boil Confucianism into a series of “thou shalt/thou shalt not”s. So, as a practitioner of Confucianism, Gavin was always a very practical person, and always had a very positive attitude, even in his darkest times. He once pointed me to this passage: “子曰:「女奚不曰,其為人也,發憤忘食,樂以忘憂,不知老之將至云爾」”. It doesn’t translate well to English, but from his explanations, I felt the passage really reflected his character. Last month, while he was literally doubled over in pain, vomiting from the complications of his cancer treatment, I was holding his hand when suddenly he had a moment of lucidity. He looked up at my face, smiled at me through my tears, and proclaimed, “I am just a common man, why am I chosen to have the strength to be able to endure this pain?” Even in his darkest times, he was able to crack a joke. Mortality is a subject that has weighed heavily on my mind. One thing I have decided is that it’s better to celebrate the living than to mourn the dead. Thus, while I am sad that Gavin has passed, I prefer to celebrate his life, and to focus my emotional energy on supporting his wife Lisa and daughter Coco who succeed him. There was a precious couple of years while his cancer was in remission, and I’m happy we celebrated the time that he had – during this time, he became an MIT Media Lab Director’s Fellow, and we visited
Boston together. He touched the lives of many students. I remember he was so excited to visit MIT’s library and explore the section on Kantian philosophy. He helped on NeTV2, and we started on
Betrusted together. We went to Tokyo and wandered the grounds of the Imperial Palace, where we found an old, grand tree standing among ruins. He declared that he always admired trees, and he could sit there and watch trees for hours. He wondered – “If we could talk to trees, what stories could they tell us?” So we sat together under a tree for an hour, and watched as its boughs waved in the wind, watched its leaves fall, watched as birds hopped among its branches. It was a true luxury to spend an hour doing nothing but watch a tree together, with a friend who had so little time. At the end, I relayed to him an anecdote I once heard about trees: “don’t feel bad for trees because they can’t walk; feel bad for humans because they have to.” Although Gavin will never walk by my side again, his memory will live on in my soul like that tree – grand, growing, enduring; nourishing in lean times; yet soothing to sit under on difficult, hot days. It will be a landmark that guides me through my remaining life. I celebrate that I had the privilege of being touched by such a goodfriend and teacher.
Gavin, by carrying your memory in my heart, I celebrate your life as I continue with mine. You may be gone from this world, but you still shape ours in many ways. Thank you, Gavin. May you rest in peace. _Gavin and I in front of one of his favorite trees at the Imperial Palace in Tokyo, Japan_Tags: obituary
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