2026-08-30T23:06:49Z https://nostr.now Attie Grande https://nostr.now/npub1762zhtmqez7vwesxj0m20sdpckrr2r47zqu8khlpyzntp7kzc2fsax772n https://media.hachyderm.io/accounts/avatars/115/850/467/516/342/243/original/0573fa950fa57761.png https://media.hachyderm.io/accounts/avatars/115/850/467/516/342/243/original/0573fa950fa57761.png https://nostr.now/nevent1qqsf709tt80tuw9e5llmvpyxmn86886072xmkxw9y6mpuhqg4wvgz7czyrmfg2a0vryte3mxq6fldf7p58zcvdgwhcgrs76luys2dv86ctpfxm9cf88 I sort of can&#39;t believe I&#39;ve never done this before...<br/><br/>When I was a youngling and my only persistent storage was scavanged from the school waste pile, I had to be super frugal. I remember ripping CDs to 64 kbit/s WMA files and going &#34;it sounds fine!&#34; (😱)<br/><br/>I&#39;ve always had a large appreciation for music, and I&#39;m lucky enough to have grown into really caring about sound stuff - working as a technician and sound engineer all my way through school and uni, since about 10 years old. It&#39;s easily one of the things I miss most, and that &#34;fork in the road&#34; decision that I sorta-kinda regret.<br/><br/>Anyway. Instagram just shoved a pretty decent sounding song at me, but oh boy the quality was shite.<br/><br/>Here is a spectogram of the Instagram audio vs the 24-bit 48 kHz audio from Tidal. No points for guessing correctly, and a stern look for guessing incorrectly.<br/><br/> <img src="https://media.hachyderm.io/media_attachments/files/117/441/869/858/080/736/original/cf582b72460d8119.png"> <br/> <img src="https://media.hachyderm.io/media_attachments/files/117/441/870/032/803/600/original/9af1627dc7dee9d9.png"> 2026-10-14T23:34:22Z https://nostr.now/nevent1qqstd48m3c3pmgg7a5k4xrue8rl39tmhzk4r97hgkxe6m79u80l9pwczyrmfg2a0vryte3mxq6fldf7p58zcvdgwhcgrs76luys2dv86ctpfxw33xa6 There are some things that I really appreciate, and this is one of them.<br/><br/>&gt; To get that throughput, I had to bit-bang all 16 lines with wur.gpio_out (8 lines per core). No room left for a clock or strobe. A CPU-driven async bus at ~100 MHz is a recipe for disaster, so the FPGA feeds the ESP its 40 MHz reference. It then follows the firmware&#39;s exact instruction timings and samples between pin transitions, with the sampling phase calibrated for the wiring.<br/><br/><a href="https://www.reddit.com/r/esp32/comments/1wq37xz/got_raw_iq_streaming_out_of_an_esp32s3_at_80_mss/">https://www.reddit.com/r/esp32/comments/1wq37xz/got_raw_iq_streaming_out_of_an_esp32s3_at_80_mss/</a> 2026-09-30T08:55:01Z https://nostr.now/nevent1qqsw0s7zfkm2lpc3jz9ta70c37aazf4guq7p86kkz8f9d4appqk2t8gzyrmfg2a0vryte3mxq6fldf7p58zcvdgwhcgrs76luys2dv86ctpfxwfnnj9 A customer has just handed me a ~12k line diff across two projects (and that&#39;s with exclusions and easy wins removed)... any guesses where it came from?<br/><br/>I need a copy of this sign...<br/><br/>I&#39;m starting to notice that the comments produced by Claude (Opus 5 in this case) are not very helpful.<br/><br/>I&#39;ll try to add more nuance as I wade through this, but human comments are generally not-great (e.g: often stale), while AI comments seem to be one of:<br/><br/>1. overly verbose waffle, difficult to parse and understand<br/>2. lacking context and detail, expecting you to &#34;just know&#34; the code base inside out<br/><br/> <img src="https://media.hachyderm.io/media_attachments/files/117/240/547/142/421/408/original/a4742457a050a980.png"> 2026-09-09T10:18:19Z https://nostr.now/nevent1qqsw4y5yhvhu8q8gkeudt38ar49x33tfc3l4nlp4jdkgff80nyzlvaszyrmfg2a0vryte3mxq6fldf7p58zcvdgwhcgrs76luys2dv86ctpfxlckjml I&#39;d appreciate input on this.<br/><br/>I&#39;m looking for an LED panel, to be suspended from the ceiling... approx 600x600mm, ~3000K, High-CRI, Lots of lumens. This will be form my study - lots of staring at monitors, big and small work (e.g: both electronics and mechanical).<br/><br/>The High-CRI factor appears to be a problem (80% is readily available), and the &#34;random product I might not be able to buy again&#34; factor is also a concern (in case a replacement is required in the future).<br/><br/>I&#39;ve found Thorn Lighting that make an actual product, but I&#39;m not sure I want to see their pricing.<br/><br/><a href="https://www.thornlighting.co.uk/en-gb/p/96634489">https://www.thornlighting.co.uk/en-gb/p/96634489</a><br/><a href="https://www.thornlighting.co.uk/en-gb/p/96635035">https://www.thornlighting.co.uk/en-gb/p/96635035</a><br/><br/>There are a few other UK suppliers who seem to provide products with varying levels of technical details. Perhaps my search hasn&#39;t been extensive enough yet... 2026-08-30T22:15:02Z https://nostr.now/nevent1qqsd5rqmaxaxk3cqz9n9qva94m56rtxmsmpdmjsqkj2h05zz9yctvfqzyrmfg2a0vryte3mxq6fldf7p58zcvdgwhcgrs76luys2dv86ctpfxrk9x8n I can&#39;t accurately convey the rollercoaster ride of feelings you&#39;ll experience when running a fairly long &amp; comprehensive test suite against 30x new prototype PCBAs for a customer... and the pass rate is ~36% 😬 2026-08-03T12:22:41Z https://nostr.now/nevent1qqs0hy67qewl04wmnnqac9udnum447jgcn7c6amw4cmwa6a23scuqsszyrmfg2a0vryte3mxq6fldf7p58zcvdgwhcgrs76luys2dv86ctpfx8exfds Any suggestions for where to get high-purity IPA (~99%) in the US? ... Pharmacy (CVS) apparently has 71% and 90% options, but I want more! 2026-07-30T18:24:54Z https://nostr.now/nevent1qqsz7zdqvddhtkgxxxed2rluzv2s6wevxy2mpmg4xygf5wqplelqanqzyrmfg2a0vryte3mxq6fldf7p58zcvdgwhcgrs76luys2dv86ctpfxvu75ku If I drank tea, I think I would have just spat it out!<br/><br/>I was just quoted for a 305m drum of CAT6 F/UTP... £705 + shipping.<br/><br/>😵 2026-07-13T21:49:09Z https://nostr.now/nevent1qqsv2qjvul33ayx3vclys50wakgrx5s46knn9zxremmkprq3qaknxcszyrmfg2a0vryte3mxq6fldf7p58zcvdgwhcgrs76luys2dv86ctpfx4nklqs In reply to <a href='/nevent1qqst7kyr340zqw4djlux7u68pazwn6awssqnr0w0amf0raxqyeyuwtcpz4mhxue69uhhyetvv9ujuerfw36x7tnsw43qytan4x'>nevent1q…an4x</a><br/>_________________________<br/><br/><span itemprop="mentions" itemscope itemtype="https://schema.org/Person"><a itemprop="url" href="/nprofile1qy2hwumn8ghj7un9d3shjtnyd968gmewwp6kyqpqqv5atqz9k9c54q8c28kra6sfata0wk7w7x5gkrnde8vmxe5gt00q8mmv7s" class="bg-lavender dark:prose:text-neutral-50 dark:text-neutral-50 dark:bg-garnet px-1"><span>nprofile1qy2hwumn8ghj7un9d3shjtnyd968gmewwp6kyqpqqv5atqz9k9c54q8c28kra6sfata0wk7w7x5gkrnde8vmxe5gt00q8mmv7s</span> (<span class="italic">nprofile…mv7s</span>)</a></span> <span itemprop="mentions" itemscope itemtype="https://schema.org/Person"><a itemprop="url" href="/nprofile1qy2hwumn8ghj7un9d3shjtnyd968gmewwp6kyqpq7wkkj73azdfr23hmgd07fn0h39xvy0w72garahk5p8hg8jv8dx5s9v3tsk" class="bg-lavender dark:prose:text-neutral-50 dark:text-neutral-50 dark:bg-garnet px-1"><span>nprofile1qy2hwumn8ghj7un9d3shjtnyd968gmewwp6kyqpq7wkkj73azdfr23hmgd07fn0h39xvy0w72garahk5p8hg8jv8dx5s9v3tsk</span> (<span class="italic">nprofile…3tsk</span>)</a></span> can you share for the first too, out of curiosity?<br/><br/>Aside from the launch, this was going to be my main point.<br/><br/>edit: found <a href="https://ioc.exchange/@azonenberg/116753334777659891">https://ioc.exchange/@azonenberg/116753334777659891</a> 2026-06-15T09:31:28Z https://nostr.now/nevent1qqsduk0yrkj04mmrcxshmuhgapagje2694g84y407q6ag88shnla5ggzyrmfg2a0vryte3mxq6fldf7p58zcvdgwhcgrs76luys2dv86ctpfxp88u5s It seems the JST website (they make connectors) might be somewhat vulnerable to SQL injection...<br/><br/>How did I find this out? ... I typed in a full MPN into the search box, with brackets in it.<br/><br/>BM08B-SURS-TF(LF)(SN) 2026-04-09T16:37:17Z https://nostr.now/nevent1qqsvft5rukau7p5gfugsrv4yjd7ww8cxwz7hxtvnqp6vgf8ltepcw5czyrmfg2a0vryte3mxq6fldf7p58zcvdgwhcgrs76luys2dv86ctpfxnsxrmt A customer wants to use a particular SOM, and in particular the QSPI interface.<br/><br/>I said that the QSPI interface is busy with onboard NAND, and can&#39;t be used via the main connectors.<br/><br/>They replied with a ChatGPT screenshot saying &#34;yes, we can use it, we just need to do ${pinmux}&#34;.<br/><br/>They replied ~1 hr later saying that they don&#39;t want to use the specific module anymore.<br/><br/>I took a brief look at the ChatGPT screenshot and the SOM docs, and unsurprisingly the pins ChatGPT nominated are mostly LVDS, but also a hard GND pin.<br/><br/>Yay, winning. 2026-03-31T16:06:58Z https://nostr.now/nevent1qqsweng4dexkg8prufjnmfwzgd8y9thucgapma7aanzuzv25g530a5qzyrmfg2a0vryte3mxq6fldf7p58zcvdgwhcgrs76luys2dv86ctpfxqgpatz Out of all the incredibly loud things I&#39;ve experienced in my life, I&#39;d rank the top two as: <br/><br/>1. Looking up the bum of a Vulcan bomber giving it full send for a short takeoff at Farnborough Airshow. Holy shit. It tickled the insides of my ears.<br/><br/>2. A 4 week old baby. Any earlier and they&#39;ve not fully got the pipes working yet - a distinctly softer timbre. This also appears to be about when they start becoming inconsolably angry about unknowable things - the limbs start flailing and joining in with the crying too... and you have to hold them close which only compounds the loudness issue.<br/><br/>... in related news, Thing 2 made an appearance in our household around 4 weeks ago. 2026-03-09T20:07:02Z https://nostr.now/nevent1qqs0y2q88546hwnwfwe7kgklkz84pttqrlvmua9vw936nvrza483qfszyrmfg2a0vryte3mxq6fldf7p58zcvdgwhcgrs76luys2dv86ctpfx2943t5 What is your favourite way to protect an ADC input? Things like STM32 have no real protection on pins in analog mode, which makes a basic potential divider approach paired with over-voltage a concerning situation.<br/><br/>Consider measuring battery voltage, where the battery is much higher than the ADC&#39;s max (e.g: +12v vs +3.3v).<br/><br/>Zeners start to have non-trivial leakage current near their working voltage - when you protect the ADC properly, the signal distorts at higher voltages. 2026-02-02T12:29:06Z