Tom Fleet

Insanity!

Now and then?!

Real ones know you use them as kindling, and chuck at least two more on each and every fire.

I guess it's more "tap" and "swipe" than it is "click" these days?

Don't forget the I2C pull-ups .. unless you are set on the internal ones in the nRF!

A small printed circuit board with a USB micro jack, a ch340 ic, a switch, an attiny3217 ic, and a 4 pin just connector.

A Pinout diagram for the ATTINY PRO development board, showing power, ground, port pin, digital, analog, programming, and special function pin locations.

It's up for sale! Grab yours today! The ATTINY PRO is a small-but-capable ATtiny3217 development board with a form-factor similar to a Pro Micro.

It's like the original Arduino board, but with the much better peripherals of the Tiny AVR 1 and 2 series.

www.tindie.com/products/mat...

Adafruit ATtiny Breakouts with seesaw These breakouts are three in one: an ATtinyxxx development board, a seesaw board, and a STEMMA QT I2C controller or peripheral! This mini development board lets you design with ATtinyxxx, or acts as a...

Nice. Seems like given your uses for it, it might end up as a good board for use with the SeeSaw libraries?

learn.adafruit.com/adafruit-att...

But yeah. the actual measurement offset here is absolutely down to the fact that these two sensors believe they are measuring drastically different air temps, so the are calibrating against incorrect data internally.

5 degrees*

My point is that these parts have complex dynamics. They can even have error introduced via the measurement/power mode chosen.

Hammering away in high perf mode gives you chunks of fairly significant current that needs to be dissipated eventually Thermals are everything with these.

Ok then, the other board reads nearly 22 - some 6 degrees out.

The idea is that figure should show (and match) the *gas* temp.

My point is, the two sensor algorithms are being fed different inputs, that directly feed into the calculation of the equivalent CO2 output value.

Speaking of thermal coupling. I guess there is AC on, and a vent blowing at the EPD board, probably with a reasonable groundplane acting as heatsink? If the sensor thinks it's sensing a *gas* temp that has that temp difference, well.. the calculated equivalent CO2 output is gas temp dependent, yeah?

These sensors, like the MOX chemristive iAQ sensors are a popular design topic recently... Very very few people properly implement these parts correctly, or, in such a way that will give the figures quoted for accuracy, etc.

It needs calibration, it needs *very much* decoupling from the board thermal contributions - ie,the ESP, the LDO sourcing that back-light... also from memory, keep it away from sunlight (strong wideband IR - as it's IR photo-acoustic)

Well that is some perfect silk screen commentary, if I don't say so.

I thought you were going to just say "I can get behind that".

Just like Sisyphus got behind that rock.

Badly aged takes on the raspberry pi silicon security offerings...

🗓️ 25th anniversary! (February 28, 2000)
💿  Eels - Daisies of the Galaxy
🎶 Uh-huh, goddamn right, it's a beautiful day
#Eels

They are the same thing though. The screens in Garmin are MIP.

Source; my fenix that I need to put back together!

www.sharpsde.com/products/dis...

Both? As in, to my understanding, these MIP fall into that category of panel?

But yeah. Sharp have a couple of RGB MIP options for this tech.

And they also offer a couple of smaller colour panels, which are on my to do / interest list...

GitHub - hackffm/ESP32_BadApple: Bad Apple Video on ESP32 with SSD1306 OLED Bad Apple Video on ESP32 with SSD1306 OLED. Contribute to hackffm/ESP32_BadApple development by creating an account on GitHub.

Oh, and the code is a fork of the Adafruit fork of this project - that explains how the "video" data is generated and packed.

Adafruit forked and scaled for memory LCD, all I did was source the data from the ESP32 FLASH SPIFFS, instead of an external SPI Flash device.

github.com/hackffm/ESP3...

ESP32S3 Sharp memory LCD controller by Fasani Corporation on Tindie ESP32S3 Sharp LCD controller

For those interested in the board, it's this one here, from @fasani.bsky.social!

ESP32-s3 based.

www.tindie.com/products/fas...

Forgot I had a load of serial output left in, slowing things down a bit.

Seems smoother with it off anyway. Haven't actually timed it, but certainly looks better.

A memory in pixel / memory LCD from Sharp.

Very fun things indeed.

www.sharpsde.com/fileadmin/pr...

So I haven't actually seen this bad apple thing yet, or at least until now.

But it looks pretty good on a memory pixel LCD, streaming out of the flash of an ESP32-S3!

Speedy!

Hell forgot the alt text on the photos. They are just two photos of a very broken e-paper display, showing garbled image data that gets a bit less garbled with a gentle touch!

Aw shoot. So looks like this display is borked. It got shipped with the FPC folded around the padding foam, rather than flat. I can get a picture if I tap the die bonded drivers *just right* - but it's definitely pretty dodgy!

But - wasn't the code at least!

Hm. Certainly not a Banksy itself, but in the style of. The tag is a good indicator, along with the stencil bleed.

Lot of this stencil around Hamburg.

I think i'll have another look - along with this, which supposedly works, and seems to have the bisected display approach, which this thing needs.

github.com/wavesharetea...

Well that patterning is my result from playing with bb_fastepd, having defined FUTURE (well. Removing the #ifdef...), but I'm missing something, clearly...

Partial updates gives noise on 1/4 the panel, and panel test gives what your can see currently...

Need to spend more than 5 mins on tinkering!

It's 5.79"?

792 x 292px, this one is B/W, but there are b/w/r and b/w/r/y versions also.

haha, it's not broken :)