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1000 results for “thisstage”
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@rasur At this stage does it look as if everyone will be embarrassed about AI next year (like NFTs, Metaverse, Social media, Linux on the desktop add you own here)?
Always keen to know where we are on the Disappointment Graph. #ai #vapour #metaverse #goggles -
@rasur At this stage does it look as if everyone will be embarrassed about AI next year (like NFTs, Metaverse, Social media, Linux on the desktop add you own here)?
Always keen to know where we are on the Disappointment Graph. #ai #vapour #metaverse #goggles -
@rasur At this stage does it look as if everyone will be embarrassed about AI next year (like NFTs, Metaverse, Social media, Linux on the desktop add you own here)?
Always keen to know where we are on the Disappointment Graph. #ai #vapour #metaverse #goggles -
It snowed this morning
It snowed for the first time this winter in Blarney. It was raining so, at least around here, the snow didn't settle on the roads. All the snow is gone by this stage, but it's cold out. Hopefully, the wet ground doesn't freeze.
https://inphotos.org/2024/11/21/it-snowed-this-morning/
#photo #photography #Cork #Ireland #Blarney #Snow #LongExposure
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It snowed this morning
It snowed for the first time this winter in Blarney. It was raining so, at least around here, the snow didn’t settle on the roads. All the snow is gone by this stage, but it’s cold out. Hopefully, the wet ground doesn’t freeze.
Apertureƒ/1.8CameraILCE-7RM5Focal length75mmISO2500Shutter speed1/15s#2024 #Blarney #Cork #Ireland #LongExposure #Photo #Photography #SamyangAF75mmF18FE #snow #SonyA7RV #sunrise
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As for this afternoon's Vectorman livestream... Yeah, I think I had enough of that game. Going back to it and getting further than I did 30 years ago was an experience.
I don't know if Vectorman is just a rough game or I'm just not a patient enough player. Maybe a bit of both! I hear the sequel is more polished at least.
I hated this stage in particular.
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I think at this stage anyone who voted for #National will have buyers remorse.
The collapse of the #coalition can’t come fast enough. Maybe there might be some life left in the economy if it happens soon. Another year of this and we are all screwed!
#nzeconomy -
Not much coverage of this on news websites. I wonder why? [sarc] And it seems #IAEA is trusting that #TEPCOLies is telling the truth? I remember seeing early TEPCO diagrams which showed that a lot of those leaks in the buildings are entering an underground aquifer, which leads to the #PacificOcean (I have them archived somewhere).
IAEA Director General Statement on a Water Leakage at #FukushimaDaiichi #Nuclear Power Station
August 15, 2024
"The International Atomic Energy Agency (IAEA) was informed that on 9 August 2024, #TEPCO found a water leakage at Fukushima Daiichi Nuclear Power Station Unit 2, involving an estimated 25 tons of water from the spent fuel cooling system pump room and the heat exchanger room. The leaked water flowed into drain on the floor connected to the water collection pit (floor sump) located in a room of the first basement floor. The Agency was also informed that TEPCO has not found any leakage spread to other rooms at this stage.
"As precautionary measure, TEPCO stopped the spent fuel primary cooling pump in order to investigate the cause and evaluated the temperature level at the pool. TEPCO confirmed that the temperature is within normal range and not above around 46 degrees Celsius. This is below the 65 degrees Celsius limitation of operation. The level of accumulated water in the room had stopped rising, and therefore determined that the water leakage had stopped.
"The leaked water was accumulated in the first basement floor as stagnant water. The level of water was lower than the sub-drain water level around the building, which means the leaked water remained inside the building. TEPCO will treat the leaked water through its water treatment facilities.
"TEPCO continues to monitor Unit 2 spent fuel pool and water level, and will make an investigation into the leakage and the future countermeasure to decide the repairing plan utilizing a remote control robot [which just got fried].
"It is important to highlight that this event is not related to the #ALPS treated water discharge. It happened inside the Reactor Building of Unit 2. The Agency was not informed about any breach of the radiation protection standards.
"The Director General will continue to keep Member States informed of further developments, as appropriate."
#WaterIsLife #OceansAreLife #NoNukes #RethinkNotRestart #FukushimaIsntOver #RadioactiveWater #NoDumpingInThePacific #FukushimaDaiichiNuclearPowerPlant
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🚨🔴🆕 Clear tendency at this stage: Noussair #Mazraoui AND Matthijs #DeLigt will join Manchester United in August!
If all goes to plan, a double transfer will be completed. Positive and ongoing negotiations between the clubs are underway.
ManUtd and Erik ten Hag are pushing for both players. Bayern willing to sell. No deals are done yet, but progress is being made. #MUFC
@[email protected] 🇲🇦🇳🇱
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🤗 At this stage, the #OpenGoesCOP coalition is convened by #WikiGreenInitiative, #OpenKnowledgeNetwork, #OpenClimateCampaign, and #OpenDataCharter.
📨 We'll be launching a website soon with information on how to join the coalition. For now, contact us at [email protected].
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🤗 At this stage, the #OpenGoesCOP coalition is convened by #WikiGreenInitiative, #OpenKnowledgeNetwork, #OpenClimateCampaign, and #OpenDataCharter.
📨 We'll be launching a website soon with information on how to join the coalition. For now, contact us at [email protected].
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🤗 At this stage, the #OpenGoesCOP coalition is convened by #WikiGreenInitiative, #OpenKnowledgeNetwork, #OpenClimateCampaign, and #OpenDataCharter.
📨 We'll be launching a website soon with information on how to join the coalition. For now, contact us at [email protected].
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🤗 At this stage, the #OpenGoesCOP coalition is convened by #WikiGreenInitiative, #OpenKnowledgeNetwork, #OpenClimateCampaign, and #OpenDataCharter.
📨 We'll be launching a website soon with information on how to join the coalition. For now, contact us at [email protected].
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🤗 At this stage, the #OpenGoesCOP coalition is convened by #WikiGreenInitiative, #OpenKnowledgeNetwork, #OpenClimateCampaign, and #OpenDataCharter.
📨 We'll be launching a website soon with information on how to join the coalition. For now, contact us at [email protected].
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For the context of this PCB design, see: Educational DIY Synth Thing.
- The build guide can be found here: ESP32 WROOM Educational Modular Synth Thing PCB Build Guide
Warning! I strongly recommend using old or second hand equipment for your experiments. I am not responsible for any damage to expensive instruments!
The Circuit
The key design decisions have already been documented here: Educational DIY Synth Thing – Part 2 so I won’t go over the details again now.
In considering the schematic, there are several key sections, each of which has been discussed in the above mentioned post.
Potentiometers and Multiplexer
There are three unused potentiometer inputs to the 4067 MUX so I’ve broken them out to header pins. These can be left as future expansion if required.
Trigger and Gate Inputs
There are four identical circuits for the trigger and gate inputs. Recall that the actual signal received by the microcontroller is inverted, so has to be treated as an active LOW signal.
Conrtol Voltage Inputs
These inputs should be able to cope with over or under voltage inputs whilst ensuring only a 0-3V3 signal is received by the ESP32.
PWM Oscillator Outputs
Recall that each PWM output stage uses a 470Ω resistor and 68nF capacitor for a frequency cutoff of around 5kHz. I might leave the capacitors off the two square wave outputs though (see previous discussion).
Amplifier
A speaker and line-out option has been left in the circuit, but it remains to be seen if the speaker output will be of any use or not. I am expecting to really only use the line out at this stage.
There is a simple volume control on the line out but not the speaker.
Rest of the Circuit
The remaining elements cover the ESP32 module itself, the MIDI IN circuit and the power supply.
PCB Design
The PCB design has had to follow the initial layout for the panel (as described in the previous post) so that has limited the options somewhat, but I seem to have been able to get everything in that I wanted.
This is actually a fourth or fifth iteration. As I’ve been testing the individual circuit components, the design has evolved somewhat.
Key features:
- Rather than single-pin header inputs, there are dual inputs. This is both for the practical reason that dual-pin headers can be bought in bulk, but single pin header sockets can’t; but also that it leaves an additional pin header that could be used for an oscilloscope connection.
- The board has included dual 3V3 and a single 5V (all plus GND) connection off to the right that can be used to power a solderless breadboard to encourage experimentation.
- All external connections (MIDI, audio, power, power switch, etc) have been left as pin headers to be connected to an appropriate socket affixed in an appropriate place – e.g. the side of a box or enclosure; or additional panel.
- I’ve done my best to position things accurately and neatly, including on the silkscreen.
- The silkscreen shows component values to aid construction, but also has enough detail for the inputs and outputs to be used without a front panel if necessary.
- The ESP32 and 7805 regulator are to be mounted on the underside of the board.
Unfortunately, the footprint for the 4067 is wrong! I’ve used a narrow 24-pin DIP socket rather than a wide 24-pin DIP. Doh! Massively annoying, but I’ll come back to that in a moment.
Panel Design
I took a copy of the PCB once laid out and pasted the pots and header pin sockets over into a new KiCAD project. This allowed me to use them as the reference for positioning the cutouts and holes for a panel design:
The pot holes are the MountingHole_8.4mm_M8_Pad footprint but I edited it to make the pad thinner. My initial thought was to allow a connection to the metal body of a potentiometer and have it screwed down.
But having ordered some pots that don’t require nuts (deliberately so – they have black shafts that can be used directly), with hindsight I’d have probably kept the solder mask on the top layer right up to the edge of the hole
The cutouts for the pin headers are made using edge cuts in the normal way. Inputs have a thin line around them – outputs have a thick line around them.
There is also a 3mm cutout for the power LED.
4067 24-pin DIP Footprint Error
As mentioned above, I made a mistake with the 4067 footprint. This was largely as I started with a 4051, 8-way multiplexer, which has the narrow footprint and when I moved to the 4067 to get more outputs, I changed the footprint for the increased number of pins without thinking it might be of a different width.
Whenever I’ve used a 4067, it has always been the SOIC version on one of those cheap breakout boards. It was only when I realised I didn’t actually have any chips and went to order some that I spotted they were only available as wide DIP packages.
Unfortunately a simple “stick it at an angle and extend the pins” bodge won’t work as it would probably make the chip too high for installation between the two rows of ADSR pots whilst remaining under the panel. This also means a stripboard converter is not an option either as there is no room on the topside of the PCB between the pots.
Annoyingly, in an earlier iteration I had the 4067 mounted on the underside of the PCB and swapped it as I decided there was no need!
In the end I designed and ordered a converter PCB to both extend and reverse the pinouts. I’ve made a PCB with three of them on, to be cut apart once received.
This will hopefully allow me to install the 4067 on the underside of the PCB instead. This will allow me to get on and test the board and possibly even use it “as is” without needing a rework straight away.
Naturally at some point I’ll rework everything, but if I do I might rework it to use one of those cheaply available 4067 breakouts instead anyway.
Closing Thoughts
Given how many times I was careful about the placing of components and silkscreen and then how many more times I reworked the board as I found out something else about the circuit, I still can’t believe I got something so fundamental as the DIP footprint wrong for the 4067.
Oh well, these things happen.
Apart from that, as a design activity, I’m quite pleased with how this has turned out so far.
Of course, I won’t actually know until I have a board in my hand, populated with components, and powered up with no magic smoke.
To be continued…
Kevin
#74hc4067 #esp32 #multiplexer #mux #pcb #potentiometer #tda5072
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I’ve never driven this stage before so my driving isn’t the best, no clinical speed- more like aggressively pushing the car to it’s limits. We lost several body panels, broke the gearbox, suspension and wheel alignment and got a puncture 2 miles from the finish line. Also, despite this car actually being a sequential gearbox, I stuck with H pattern manual driving because I’m a sucker for manual gearboxes. This was a tough one!
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🔴 News #Mukiele: At this stage no final agreement about loan details. Bayern is pushing for a 6-months-loan with an option to buy as PSG want to have an obligation to buy.
⚠️ Negotiations between Bayern and Paris still ongoing. But: Both clubs are willing to find an agreement in the next days ✔️
Mukiele, still the No. 1 target for Bayern. #Boey, top candidate behind him. Confirmed again. @[email protected] 🇫🇷
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But which roles does this stage perhaps offer?
There’s the founder or CEO who has the vision to direct such a company.
There’s the shareholder, passively reaping the financial rewards.
There’s the employee, creating the apps, monetizing the data or navigating the legal and regulatory landscape for the company.5/9
#bigtech #privacy #dataprotection #ethicalbusiness #shamanism #cosmic #familyconstellation #incarnation
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Harriett at this stage let Jeff keep going...he will destroy the
#DUP hopefully, he will end #Stormont permanently and British Rule will end because of his refusal to accept the new reality.Sometimes things have to break before they get better...let Jeff break NI for good. Then it will on his watch that union ended.
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Harriett at this stage let Jeff keep going...he will destroy the
#DUP hopefully, he will end #Stormont permanently and British Rule will end because of his refusal to accept the new reality.Sometimes things have to break before they get better...let Jeff break NI for good. Then it will on his watch that union ended.
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Harriett at this stage let Jeff keep going...he will destroy the
#DUP hopefully, he will end #Stormont permanently and British Rule will end because of his refusal to accept the new reality.Sometimes things have to break before they get better...let Jeff break NI for good. Then it will on his watch that union ended.
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you'd think by this stage in my life, I'd know better than to cut Serrano Peppers and then itch my eye! Damn…
At least I didn't have to pee
#lifehack for #idiots #regretsIHaveAFew #TIL #DearDiary #Capsicum
it hurts if I #eyeroll -
Chompsky gives this Monday a half sploot and a lightning bolt broke tail. (Before anyone asks, the tail break is an old injury. The only treatment available for it at this stage would be amputation and he is not a surgical candidate due to his liver and heart.) #MondayMood #Chompsky
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Chompsky gives this Monday a half sploot and a lightning bolt broke tail. (Before anyone asks, the tail break is an old injury. The only treatment available for it at this stage would be amputation and he is not a surgical candidate due to his liver and heart.) #MondayMood #Chompsky
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Chompsky gives this Monday a half sploot and a lightning bolt broke tail. (Before anyone asks, the tail break is an old injury. The only treatment available for it at this stage would be amputation and he is not a surgical candidate due to his liver and heart.) #MondayMood #Chompsky
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Chompsky gives this Monday a half sploot and a lightning bolt broke tail. (Before anyone asks, the tail break is an old injury. The only treatment available for it at this stage would be amputation and he is not a surgical candidate due to his liver and heart.) #MondayMood #Chompsky
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Actually surprised at this stage that someone hasn't announced a #Goncharov project with one of the major streaming networks.
Probably a six part comedy, using the device of never before seen footage taken for a "Making of..." documentary that was never finished.
Will Ferrell is probably one of the producers, somehow Ryan Reynolds is involved, and they land the whale when Marty agrees to a post-credits cameo in part six. -
5/n
At this stage, troop transfers have yet to be assessed.
But the psy impact is already very strong: evacuations, traffic jams#shebekino is bombed 👇
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@DaNanner At this stage I’ll watch almost anything with Viola and Octavia in it #TopTalent
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What would help at this point is indications of interest.
* Would you or your organisation pay a cooperative to host a Mastodon server? Do you know of anyone else who might?
* Would you pay a premium to have it hosted onshore in Aotearoa (which will cost us significantly more at this stage)?
* Would you or your organisation pay a cooperative for training and support so you can self-host or community-host your own servers?