Stahlbrandt<p><span class="h-card" translate="no"><a href="https://floss.social/@fast_code_r_us" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>fast_code_r_us</span></a></span> <a href="https://infosec.exchange/tags/lcd" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>lcd</span></a> <a href="https://infosec.exchange/tags/control" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>control</span></a> <a href="https://infosec.exchange/tags/library" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>library</span></a> <a href="https://infosec.exchange/tags/electronics" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>electronics</span></a> <a href="https://infosec.exchange/tags/ST7789" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ST7789</span></a></p>
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#st7789
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pedro 🍉<p>I wrote some ST7789 screen driver Rust code which just takes bytes from memory and flushes them into the screen. It seems to work but somehow the screen turns completely white less than one second after the memory write operation. This used to work fine, so I was wondering if maybe some other driver was interfering with the SPI, but nope, I disabled everything else and it still does that. I wrote a small test program which uses a different library to speak to the ST, and it works just fine. I am probably doing something wrong somewhere, BUT THEN WHY WAS IT WORKING OK BEFORE? I suspect some weird timing issues. Or maybe my driver code is being optimized by the compiler somehow, and things are not being done in the correct order?</p><p>I will probably plug in a logic analyzer tomorrow, but if anyone has any tips on how to debug it...</p><p><a href="https://fedi.turbofish.cc/tags/st7789" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>st7789</span></a> <a href="https://fedi.turbofish.cc/tags/embeddedrust" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>embeddedrust</span></a> <a href="https://fedi.turbofish.cc/tags/embedded" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>embedded</span></a> <a href="https://fedi.turbofish.cc/tags/rust" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>rust</span></a> <a href="https://fedi.turbofish.cc/tags/electronics" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>electronics</span></a></p>
jojess<p>Making a lil rpi weather clock so that I know how bad the air is... before I step out. Is a silly little toy. When it's done, Imma hang it by the thermostat ... maybe drop $30 on a home pm2.5 sensor to hang outside.</p><p>The backend spider/daemon/api is some old, terrifying Jojess-perl. Client in python.</p><p>Using waqi.info for the local AQI... NOAA for everything else.</p><p>Manufacturer ships (github) libs with some cute roma/hanzi fonts. I'l need to pick a truetype with Kanji.</p><p><a href="https://nyxa.jojess.net/tags/ST7789" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ST7789</span></a> <a href="https://nyxa.jojess.net/tags/python" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>python</span></a> <a href="https://nyxa.jojess.net/tags/rpi" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>rpi</span></a></p>
Pyrzout :vm:<p>Hacked Oscilloscope Plays Breakout, Hints at More <a href="https://hackaday.com/2024/04/18/hacked-oscilloscope-plays-breakout-hints-at-more/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">hackaday.com/2024/04/18/hacked</span><span class="invisible">-oscilloscope-plays-breakout-hints-at-more/</span></a> <a href="https://social.skynetcloud.site/tags/reverseengineering" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>reverseengineering</span></a> <a href="https://social.skynetcloud.site/tags/ToolHacks" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ToolHacks</span></a> <a href="https://social.skynetcloud.site/tags/Teardown" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Teardown</span></a> <a href="https://social.skynetcloud.site/tags/breakout" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>breakout</span></a> <a href="https://social.skynetcloud.site/tags/CH32F103" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>CH32F103</span></a> <a href="https://social.skynetcloud.site/tags/firmware" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>firmware</span></a> <a href="https://social.skynetcloud.site/tags/DSO152" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>DSO152</span></a> <a href="https://social.skynetcloud.site/tags/FNIRSI" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>FNIRSI</span></a> <a href="https://social.skynetcloud.site/tags/ST7789" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ST7789</span></a> <a href="https://social.skynetcloud.site/tags/debug" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>debug</span></a> <a href="https://social.skynetcloud.site/tags/risc" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>risc</span></a></p>
IT News<p>Hacked Oscilloscope Plays Breakout, Hints at More - You know things are getting real when the Dremel is one of the first tools you tur... - <a href="https://hackaday.com/2024/04/18/hacked-oscilloscope-plays-breakout-hints-at-more/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">hackaday.com/2024/04/18/hacked</span><span class="invisible">-oscilloscope-plays-breakout-hints-at-more/</span></a> <a href="https://schleuss.online/tags/reverseengineering" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>reverseengineering</span></a> <a href="https://schleuss.online/tags/toolhacks" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>toolhacks</span></a> <a href="https://schleuss.online/tags/teardown" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>teardown</span></a> <a href="https://schleuss.online/tags/breakout" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>breakout</span></a> <a href="https://schleuss.online/tags/ch32f103" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ch32f103</span></a> <a href="https://schleuss.online/tags/firmware" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>firmware</span></a> <a href="https://schleuss.online/tags/dso152" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>dso152</span></a> <a href="https://schleuss.online/tags/fnirsi" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>fnirsi</span></a> <a href="https://schleuss.online/tags/st7789" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>st7789</span></a> <a href="https://schleuss.online/tags/debug" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>debug</span></a> <a href="https://schleuss.online/tags/risc" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>risc</span></a></p>
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