DFN Happy Hour No. 27: 3rd Week of November

Coming up Friday at 5:30 pm PDT members Barb Noren (BarbMakesThings), Tod Kurt (todbot) and Carlyn Maw (carlynorama) stream again! Last time we did… things… this week we do… more things. Carlyn revisits plants as her “mental PPE”, Barb’s making merch! and Tod does an ePaper revisit of a past project.


Last-Last Week Redux

Beverages Consumed

“Thanks for Existing!” Awards

This Week Preview


I’ve been very excited by CircuitPython’s move into the ESP32-S2 space. The ESP32-S2 is a WiFi-enabled microcontroller with built-in USB and a crypto engine so it can do HTTPS properly. And in Python! CircuitPython is much more pleasant than Arduino for network-based tasks, where there’s lots of string processing.

So for this week’s Deep Fried Neurons Happy Hour, I decided to take a cue from Carlyn’s revisiting a DFN project and revisit my “day of week” device. The first one was an orange 3d printed “week wheel”, partially seen above. Now it’s an ePaper- and ESP32-S2-based MagTag from Adafruit. The MagTag device is really nice. And it’s got little magnet feet! I put the code up on github. It’s basically a clock, but one that only updates once a day. Each day’s display is a typographic take on what I often feel on each day. Monday is serious and tilted up: “We’re gonna do this!”. Tuesday is a “work day, just work”. By Wednesday I’m starting to slip. Thursday my energy is regained! On Friday (above) I’m optimistic for all I’m going to do on the weekend, but with a little trepidation. (I usually just slack). Saturday is all relaxed, yup I’m slacking. And with Sunday, I’m worried about the upcoming week, I can’t believe the weekend’s already over!

Currently the code updates the display once an hour. Since ePaper displays require no power when not changing, it really could only wake up once-a-day. The battery should last for weeks. The CircuitPython team is continuing work on low-power modes to reduce power consumption, so battery life could get even better. It solves one of the main problems I had with my 3d printed “week wheel”: it required me to update it manually every day. Now the fridge can tell me what day it is because… what day is it?


This week, I set up a new society6 page (https://society6.com/barbmakesthings), and am expecting to make a Redbubble shop as well. The decisions of these two sites are based partly on popularity of the sites and good reviews, plus the kinds of items I want to list. I also did the final touches on my alignment designs and have uploaded them all as drafts, with options to get the designs as prints, stickers, shirts, and tank tops. A few more details there and I can go live with them!
(It’s a bit absurd how many options you have for items to print your design on. I’ll show some tonight.)

Next week, I’m shooting for perhaps some additional designs that I’ve been working on and the Redbubble shop.


Going back to episode 2, plants are really my mental PPE. So I played with plants. I got plants and seeds from Theodore Payne and Annie’s Annuals.

Easy way to scatter seeds in the yard? Use a mix!

  • Asciepias eriocarpa (Kotolo milkweed)
  • Asciepias fascicularis (Narrow leaf milkweed)
  • Cynara cardunculus var. scolymus ‘Carciofo Romanesco’ (Artichoke)
  • Dianthus ‘Raspberry Swirl’ (Edible flowers)
  • Eriogonum grande var. rubescens
  • Eschscholzia californica ‘Rose Chiffon’ “California Poppy”
  • Eschscholzia californica ‘Apricot Chiffon’ “California Poppy”
  • Heuchera ‘Santa Ana Cardinal’
  • Lonicera hispidula
  • Mimulus lewisii x cardinalis “Monkey Flower”
  • Mimulus bifidus ‘White’ “Monkey Flower”
  • Nemophila menziesii ‘Penny Black’
  • Platystemon californicus “Cream Cups”
  • Raphanus sativus var. longipinnatus (Daikon Radish)
  • Rhus integrifolia
  • Ribes viburnifolium
  • Grass – Agrostis pallens
  • Grass – Festuca occidentalis
  • Grass – Stipa lepida
  • Grass – Stipa pulchra
  • Grass –


I make things that do stuff. The best, though, is teaching others to do the same. Founder of @crashspacela Alum of @ITP_NYU

One thought on “DFN Happy Hour No. 27: 3rd Week of November

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.