Friday, week3. Thai food

content/blog/wk3day5.md

@@ -1,7 +1,86 @@
 ---
-title: "Week 3, Friday:"
+title: "Week 3, Friday: ESP32 Ethernet and Thai Food Festival"
 date: 2024-08-16T21:55:00+02:00
-draft: true
 ---
 
 {{< image frame="true" width="17em" float="right" src="/img/headline/ixosound.png" alt="Credit: Ixo Sound, Youtube" >}}
+
+I have only two goals for the day. Firstly, I need to write my journal entry for yesterday, as I was
+a little bit too tired to write lucid text. I went to bed at only 22:30 or so, and got up this
+morning at 09:30, so I'll make up for lost time and write the artical for yesterday, today. Then,
+something cool came in the mail today: a set of ESP32 (Wroom) microcontrollers with a builtin
+Ethernet PHY. I shall play with them in the afternoon using an old friend: Mongoose OS which is
+based on FreeRTOS and ESP-IDF, a surprisingly complete little microcontroller OS. I used to be very
+active in this community, and may still have my commit-bit set on GitHub.
+
+The first task is pretty quickly retrofitted - I may make it a habit to write the journal in the
+next morning, as often times later at night I'm sleepy (this is somewhat out of character for me, as
+normally I will go to bed at 02:00 or 03:00 even, but these last few days I've been tired in the
+evenings. Interesting!
+
+I make myself fried eggs for lunch, and eat a bowl of the ramen I had left over from yesterday.
+Then, I roll up my sleeves, go downstairs and get ready to design the PDU. I may write more about
+the in-depth technical bits on my [[IPng.ch](https://ipng.ch/)] articles, but for now, I just start
+with the basics:
+
+1.  A front panel that has 16pcs of 220V C13 connector, in two groups (feed A on the left, and feed
+    B on the right).
+1.  A rear panel that has 2pcs of 220V input, 2pcs 10Amp fuse, and a power switch and cutout for the
+    ESP32's ethernet RJ45 port.
+1.  Some plumbing on the inside to keep the low voltage and 220V lines through a modbus enabled 16
+    channel ammeter.
+1.  A firmware based on Mongoose OS that supports WiFi, Ethernet, mDNS, RPC, OTA and Prometheus.
+
+For the 3D printed parts, it's all relatively simple (flat) geometry. It reminds me that at some
+point, I will stop 3D printing 2D parts, but rather buy a laser cutter so I can do some etching,
+engraving and cutting through materials like wood, acrylic and so on. But that will be for another
+day - I have the 3D printer, so I'm going to use the tools that I already have!
+
+I have a lot of fun hacking on this little thing. There's something about the juxtaposition of
+having a datacenter scale day job where petabytes is the norm, and then going back home to program a
+firmware on a microcontroller with 80KB of ram and 1MB of flash. I'm lucky on this Wroom32, as it
+has a whopping 200KB of RAM and 8MB of flash - I will have plenty of room to spare, and already look
+forward to writing some code for it.
+
+But, we have a date tonight! At 17:30, Max and Betty will pick us up as we're going to B&uuml;lach
+for the [[Thai Food Festival](https://www.thaifoodfestival.ch/)]. It's an amazing ambiance, and we
+also bump in to Uli and Christine, who scurry off into a quieter corner of the fairgrounds. Quinn
+and I kind of wished we joined them, because the music is a bit loud; so we decide to take a walk
+around the festival, then outside of it through the quaint town of B&uuml;lach, and eventually we
+rejoin the group.
+
+At about 21:15 we are all fed and watered and take off back to Br&uuml;ttisellen. Thanks for a great
+evening, Betty and Max! Quinn wants to spend some time with his friends, and Marina and I watch a
+few more episodes of _Coppers_, the flemish police series. They do solve the crimes every time
+(da-doi!) but there is a red thread that connects the episodes throughout the series. I won't give
+it away :)
+
+At about 23:00 Marina turns in for the night and I go downstairs to do "Part B" of "Goal 1", which
+is write the article for today. Then, I also do a bit of a stress test on my firmware so far -- I've
+loaded it up with OTA (where 'air' here means over the Ethernet connection!) and Prometheus, and
+am hitting it over the ethernet controller at 10Hz on its `/metrics` endpoint. So far, so good: no
+leaks of memory, CPU, brownouts, packetlo\_ or other undesirables. Tomorrow, I'll continue with the
+physical parts (routing 220V cables) and 3D print the supporting guides and brackets for the casing.
+
+To celebrate the day, I pour myself a _Nardini_ white Grappa and print a few test parts, before
+turning in for the night. The Grappa does surprise me a little bit because the first taste I have is
+_liquorice_ and ths econd sensation is _100-Proof_, and I quite enjoy the glass, or maybe two.
+
+
+## Pictures of the Day
+
+{{< gallery-category >}}
+  {{< gallery-photo fn="2024-08-16/IMG_0679.JPG" caption="A picture of a WT32-ETH01 module with Wroom32 and 100Mbit Ethernet PHY. It pings!" >}}
+  {{< gallery-photo fn="2024-08-16/IMG_0682.JPG" caption="Max and I are at the Thai food street festival" >}}
+  {{< gallery-photo fn="2024-08-16/IMG_0683.JPG" caption="We have tasty trinks (lemongrass+honey, and berry+dates)" >}}
+  {{< gallery-photo fn="2024-08-16/IMG_0684.JPG" caption="THe food festival in B&uuml;lach is happening!" >}}
+  {{< gallery-photo fn="2024-08-16/IMG_0685.JPG" caption="We order and nom on a spicy noodle soup, mie and fried rice" >}}
+  {{< gallery-photo fn="2024-08-16/IMG_0686.JPG" caption="Quinn and I take a walk and find this guy" >}}
+  {{< gallery-photo fn="2024-08-16/IMG_0688.JPG" caption="This chef is pumping out dishes at one per minute, and they are all made-to-order. Amazing!" >}}
+  {{< gallery-photo fn="2024-08-16/IMG_0689.JPG" caption="Quinn and I are being welcomed to Thailand" >}}
+  {{< gallery-photo fn="2024-08-17/IMG_0690.JPG" caption="I 3D printed a case for the ESP32 device, which will sit in a PDU" >}}
+  {{< gallery-photo fn="2024-08-16/espidf.png" caption="The WT32-ETH01 modules come pre-flashed with a working ESP-IDF firmware. I'm reflashing them with a Mongoose OS app though, more on that later!" >}}
+{{< /gallery-category >}}
+
+{{< gallery-modal >}}
+{{< gallery-script >}}

content/blog/wk4day4.md

@@ -4,4 +4,4 @@ date: 2024-08-22T21:55:00+02:00
 draft: true
 ---
 
-{{< image frame="true" width="17em" float="right" src="/img/headline/bassementcrew.png.png" alt="Credit: Basement Crew, Youtube" >}}
+{{< image frame="true" width="17em" float="right" src="/img/headline/bassementcrew.png" alt="Credit: Basement Crew, Youtube" >}}

content/blog/wk4day7.md

@@ -4,4 +4,4 @@ date: 2024-08-25T21:55:00+02:00
 draft: true
 ---
 
-{{< image frame="true" width="17em" float="right" src="/img/headline/todo.png" alt="Credit: " >}}
+{{< image frame="true" width="17em" float="right" src="/img/headline/deepbest.png" alt="Credit: Deep Best, Youtube" >}}

content/blog/wk5day1.md

@@ -4,4 +4,4 @@ date: 2024-08-26T21:55:00+02:00
 draft: true
 ---
 
-{{< image frame="true" width="17em" float="right" src="/img/headline/todo.png" alt="Credit: " >}}
+{{< image frame="true" width="17em" float="right" src="/img/headline/jungletone.png" alt="Credit: Jungle Tone, Youtube" >}}

content/gallery.md

@@ -208,6 +208,16 @@ menu:
   {{< gallery-photo fn="2024-08-15/IMG_0666.JPG" caption="We watch Coppers, a belgian crimescene investigation series. It's OK, so far!" >}}
   {{< gallery-photo fn="2024-08-15/IMG_0667.JPG" caption="The frogs have cornered the two sharks, who are fearing for their life." >}}
   {{< gallery-photo fn="2024-08-15/IMG_0668.JPG" caption="The frogs have consumed the magic mushrooms, and obliterated one shark, and half of the other one! Look at them gooooo!!" >}}
+  {{< gallery-photo fn="2024-08-16/IMG_0679.JPG" caption="A picture of a WT32-ETH01 module with Wroom32 and 100Mbit Ethernet PHY. It pings!" >}}
+  {{< gallery-photo fn="2024-08-16/IMG_0682.JPG" caption="Max and I are at the Thai food street festival" >}}
+  {{< gallery-photo fn="2024-08-16/IMG_0683.JPG" caption="We have tasty trinks (lemongrass+honey, and berry+dates)" >}}
+  {{< gallery-photo fn="2024-08-16/IMG_0684.JPG" caption="THe food festival in B&uuml;lach is happening!" >}}
+  {{< gallery-photo fn="2024-08-16/IMG_0685.JPG" caption="We order and nom on a spicy noodle soup, mie and fried rice" >}}
+  {{< gallery-photo fn="2024-08-16/IMG_0686.JPG" caption="Quinn and I take a walk and find this guy" >}}
+  {{< gallery-photo fn="2024-08-16/IMG_0688.JPG" caption="This chef is pumping out dishes at one per minute, and they are all made-to-order. Amazing!" >}}
+  {{< gallery-photo fn="2024-08-16/IMG_0689.JPG" caption="Quinn and I are being welcomed to Thailand" >}}
+  {{< gallery-photo fn="2024-08-17/IMG_0690.JPG" caption="I 3D printed a case for the ESP32 device, which will sit in a PDU" >}}
+  {{< gallery-photo fn="2024-08-16/espidf.png" caption="The WT32-ETH01 modules come pre-flashed with a working ESP-IDF firmware. I'm reflashing them with a Mongoose OS app though, more on that later!" >}}
 {{< /gallery-category >}}
 
 ### Playing with OBS sound (August 8th)