Tag: ff0000

scary weather over orlando

whbeebe


Last year was the hottest, ever. The average temperature anomalies went way up compared to everything prior decade and stayed there.

There are already consequences showing up from this huge rise in global temperature anomalies. For one example, the crazy bad weather over Orlando this evening as you can see in the screen capture at the start.

And then this weather warning from Orange County:

Severe Thunderstorm WarningBeginning: 2024-01-09T22:21:00Ending: 2024-01-09T23:00:00New AlertTHE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A* SEVERE THUNDERSTORM WARNING FOR...SEMINOLE COUNTY IN EAST CENTRAL FLORIDA...CENTRAL LAKE COUNTY IN EAST CENTRAL FLORIDA...ORANGE COUNTY IN EAST CENTRAL FLORIDA...VOLUSIA COUNTY IN EAST CENTRAL FLORIDA...NORTHWESTERN OSCEOLA COUNTY IN EAST CENTRAL FLORIDA...* UNTIL 600 PM EST.* AT 521 PM EST, SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINEEXTENDING FROM NEAR PIERSON TO ZELLWOOD TO 12 MILES WEST OF FOURCORNERS, MOVING NORTHEAST AT 70 MPH.HAZARD...60 MPH WIND GUSTS.SOURCE...RADAR INDICATED.IMPACT...EXPECT DAMAGE TO ROOFS, SIDING, AND TREES.* LOCATIONS IMPACTED INCLUDE...ORLANDO, DELTONA, DAYTONA BEACH, KISSIMMEE, AND PORT ORANGE.PRECAUTIONARY/PREPAREDNESS ACTIONS...REMAIN ALERT FOR A POSSIBLE TORNADO! TORNADOES CAN DEVELOP QUICKLYFROM SEVERE THUNDERSTORMS. IF YOU SPOT A TORNADO GO AT ONCE TO ASMALL CENTRAL ROOM IN A STURDY STRUCTURE.FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF ABUILDING.A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM EST FOR EAST CENTRALFLORIDA

All this on 9 January. I’ve lived here since 1984, and I’ve never seen or experienced anything like this, until today. This is now the new normal, and it’s not good at all.

Links

First results are in: 2023 temperatures were stunningly warm — https://arstechnica.com/science/2024/01/first-results-are-in-2023-temperatures-were-stunningly-warm/

designing the esp32-s3/max7219 device

whbeebe1 Comment
ESP32-S3-DevKitC w/MAX7219 and 1088AS LED 8×8 Matrix

I’m designing a circuit that uses an ESP32-S3-DevKit1 to drive a MAX2719/7221 and 1088AS, just as I promised in the last post. The broad steps are:

  1. Write software to communicate with the MAX7219 and 1088AS,
  2. Write software that enables Bluetooth on the ESP32-S3,
  3. Write software on both the ESP32-S3 and Raspberry Pi 5 to communicate status and messages to display on the 1088AS.

In order to create the schematic diagram in KiCad I had to import symbols for the Espressif components. There’s a link at the bottom that leads to Espressif’s GitHub repo, complete with instructions on how import those symbols into KiCad 7. The Espressif instructions are short, sweet, clear, and they work without exception.

I’m also reading Espressif’s documentation on how to work with the ESP32-S3’s SPI port.

Links