circfruit

:arduino: :raspberrypi: :python: :emacs: 🇧🇬 🇪🇺 I’m Lawyer, interested in electronics, Python and Apple ][ hardware. Emacs user.

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circfruit_at_fosstodon.org@momostr.pink

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Last Notes

2026-05-02 15:06:58 UTC

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I’m using this this lib: https://github.com/Bodmer/TJpg_Decoder and honestly, Claude did the C part for me :) What is S3 SIMD? I might check, although the camera module produces around 6kb jpegs and i don’t know what i can optimize more - the image comes kind of pixelated. Camera can produce better resolutions but because I intend to transfer those over LoRa i need small size, so quality is compromised a bit.

2026-04-27 12:14:02 UTC

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MacOS build doesn’t work.

2026-04-11 14:59:03 UTC

I have ported @npub1k7x…ceaf to LilyGo t-deck ( esp32s3) And I have no cardreader to put a game to test it right now. Have to wait couple of days. 😭😭#scummvm
https://cdn.fosstodon.org/media_attachments/files/116/386/659/536/737/764/original/b02df8ace5690040.png

2026-04-08 22:42:20 UTC

I've implemented imperfect rns:// scheme into MacOS rendering #reticulum #nomadnet pages through rnsd-menubar app. It basically converts micron to html, so it can be shown on the browser. Unfortunately I can’t open rns:// in the same tab I type the address - it has to be a new window - but it’s still Safari. This essentially can enable putting rns:// links in regular html pages <a> tags and if you click it will open the nomad page in new window.
https://cdn.fosstodon.org/media_attachments/files/116/371/466/614/839/024/original/60a38ec291ab1f83.mp4
https://cdn.fosstodon.org/media_attachments/files/116/371/489/709/615/415/original/6444ed8ca1be9050.jpeg

2026-04-07 09:08:48 UTC

I’ve uploaded to GitHub my RNSD #reticulum MacOS menubar app. It’s a python app, so source code is easy to read. It’s basically a GUI wrapper of rnsd and its sister commands. You can put it in your startup apps on the MacOS to have a reticulum daemon running all the time. For the ones who don’t want to bundle it themselves, i’ve included a bundled executable in the Releases section, so you can just unzip and put it in your /Applications folder (app is not signed 😄) https://github.com/varna9000/rnsd-menubar
https://cdn.fosstodon.org/media_attachments/files/116/362/632/162/489/395/original/75a714f22fbdc84b.jpeg

2026-04-06 23:15:58 UTC

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Can’t believe this turns so professional 😁 #reticulum macOS menu app. I managed to bundle it in an .app file. Once everything is tested I’ll publish a release and the source to GitHub.
https://cdn.fosstodon.org/media_attachments/files/116/360/291/868/651/216/original/30c9862bdb3bb3a0.jpeg
https://cdn.fosstodon.org/media_attachments/files/116/360/302/891/170/290/original/4c2868aee4124c8b.jpeg

2026-04-06 17:08:54 UTC

Anyone interested in MacOS rnsd #reticulum service as menubar icon? It’s kind of stitch job now but looks cool 😎
https://cdn.fosstodon.org/media_attachments/files/116/358/850/442/458/794/original/f6dc67e455a51dff.jpeg

2026-04-05 14:48:01 UTC

There’s some #retuculym discussion streaming right now https://www.youtube.com/watch?v=tnpsdDnUbXM

2026-04-05 08:24:10 UTC

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yeah, no worries :)

2026-04-05 08:11:20 UTC

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I made the same mistake initially. You’ve flashed the wrong Micropython firmware, which supports small amount of ram. Go here: https://micropython.org/download/ESP32_GENERIC_S3/ and scroll down to the section Octal SPIRAM (8mb spiram variant) or even further down to the 4Mb ram variant firmware, depending on what board you have. Try first with the octal one (8mb spiram).

2026-04-04 14:34:20 UTC

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great! I’m thinking of defining a special scope rntranaport.telemetry which is actually allowed as per reticulum specs. The receiving side however need to be able to decode it too. I think Sideband has something similar. I’ll have more time to tinker and improve in couple weeks. If you have ideas PRs are welcome 😄

2026-03-30 14:51:21 UTC

No way! #reticulum Rnode on ch32v003! https://netmonk.org/works/rnode-on-os3-ch32v003/

2026-03-30 09:35:35 UTC

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good choice! As you said, they are cheap enough not to bother with the others. I got one working since yesterday with sds011 and bme280 sensors, serving a nomad page with the (almost) live data. Current uptime: 14h 8m 41s, so looking good 😊 Yesterday I’ve uploaded the latest changes to the repo btw (driver for sds011).

2026-03-29 19:52:11 UTC

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honestly, buying a board with more ram would be the easiest solution. There’s a c++ microeticulum firmware but it’s not complete. If they complete it, you should be able to use it on more memory constrained boards.

2026-03-29 19:50:13 UTC

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yes, this was my idea too. Or perhaps hook a solar with few batteries and leave it running. I’m going to test such node in transport mode so it acts as router on a tree in the fields.

2026-03-29 19:46:51 UTC

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just replied to you in the repo, but you just need board with more ram. Micropython itself consumes more than half of the your board’s ram. I could try to cross-compile the drivers into the firmware, which potentially could reduce ram consumption.

2026-03-29 19:39:51 UTC

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I’ll look into it. How much memory you got?

2026-03-29 19:39:07 UTC

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I just put it up. You can connect to tcp interface rn.varnatransport.com:4243 the node is announcing itself every minute. Added also a particle sensor readings to the page.

2026-03-29 19:37:49 UTC

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cool! Shouldn’t be too difficult to add more sensors. There’s lot of drivers for micropython. I just added for particle sensor sds011.

2026-03-29 19:34:55 UTC

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ok I'm leaving this flaky #nomadnet #reticulum setup on for few days. If anyone wants to test it try connecting to tcp interface rn.varnatransport.com:4243 The node announces itself every minute so you should see it and open the page.

2026-03-29 14:20:27 UTC

Just added particle sensor sds011 to the #micropython #reticulum firmware. On the image below you can see a #nomadnet page showing both bme280 and sds011 readings. I need a custom PCB to get rid of these jumper wires 😁 The lxmf node example can also return the value of the sensors, when it receives keyword “sensor”.
https://cdn.fosstodon.org/media_attachments/files/116/312/876/937/325/463/original/45112221b3ca3533.jpeg
https://cdn.fosstodon.org/media_attachments/files/116/312/877/268/640/717/original/b261ac7b639d375c.jpeg

2026-03-28 19:47:24 UTC

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Thanks. I usually use trees. You should try, if you haven’t yet.

2026-03-28 19:44:03 UTC

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cool! what’s the farthest point you mapped?

2026-03-28 17:44:06 UTC

I’m walking in the dusky foggy field like a freak, testing #reticulum transport node. 😂 It defo worked, as I was able to remotely switch on the led of another node at home which has minuscule antenna.
https://cdn.fosstodon.org/media_attachments/files/116/308/032/888/155/790/original/5407155137477b83.png
https://cdn.fosstodon.org/media_attachments/files/116/308/033/093/948/333/original/7718d449b6bd91a8.png

2026-03-28 17:36:56 UTC

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i’ve mad solar nodes only with nrf52, so can’t really say about Esp32. It’s a software provlem in my opinion. I’m testing a fix now and will report back if it worked, at least for reticulum. There’s an open issue on meahtasric github about the same thing but not sure if anyone is working on it.

2026-03-28 13:49:47 UTC

I’m hitting the same problem with micro #reticulum firmware as with the #meshtastic one. Solar node’s battery can die if we have a week of cloudy skies. With microreticulum, the whole eprom data is written in a single LittleFS file. If the controller browns-out while writing on the EEPROM, it corrupts it and when the battery is charged back, the firmware fails with “eeprom not provisioned”. This makes putting a transport node in the wild pointless. I’ll see if I can make this more resilient.
https://cdn.fosstodon.org/media_attachments/files/116/307/116/307/479/937/original/284a48e37b995347.jpeg

2026-03-26 21:06:31 UTC

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I have to look into this, not sure how practical it is but surely would look cool

2026-03-26 21:03:40 UTC

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thanks, that was 2 weeks ago and the node is now off, but will switch it back on in the next few days and will ping you

2026-03-25 22:18:20 UTC

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it seems the nodes are being duplicated because a node may announce different roles. I did some deduplication and colored such nodes with Jupiter like belts in the respective role they have. It will be less crowded (and cool) now. #reticulum #rnsmap3d
https://cdn.fosstodon.org/media_attachments/files/116/292/121/049/775/370/original/10383a4f77987a2c.jpeg

2026-03-25 22:02:09 UTC

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I’ve uploaded this version here, if you want to have a go https://github.com/varna9000/rns-map-3d

2026-03-25 20:48:53 UTC

And just for the giggles, here's the #reticulum visualization in 3d 😁
https://cdn.fosstodon.org/media_attachments/files/116/291/776/974/032/932/original/25ee1237417439e0.mp4

2026-03-25 20:28:14 UTC

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it’s like supernova of announcements 😄 I think this is usable on Lora Meshes only.

2026-03-25 20:04:55 UTC

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wow! I just ran it on a node, connected to two TCP interfaces, it’s getting wild! LOL
https://cdn.fosstodon.org/media_attachments/files/116/291/605/423/369/621/original/0b022e5eb4f93dd6.mp4

2026-03-25 14:56:52 UTC

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jokes between colleagues 😄 I usually curse it

2026-03-17 21:52:24 UTC

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not that i want to use meshtastic after tasting reticulum 😄, but we’ve got nice mesh locally and reticulum over meshtastic interface worked ok for me on MediumFast preset. I can just take advantage of the infrastructure.

2026-03-17 21:48:39 UTC

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i’ll give it a try with real time clock module. I’ll just schedule once a day(or week) reset. it should work independently since it has its own coin cell bat. Better than climbing trees every other day 😂

2026-03-17 21:19:01 UTC

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did it work?

2026-03-17 18:53:52 UTC

I got this ridiculous unresolved problem with #meshtastic Randomly solar nodes stop working and microcontroller doesnt work unless reset. Battery is fine and being charged ok so might be firmware issue. There’s issue on github but it’s unresolved. So i’m thinking of hooking ds3231 rtc module and program an allarm to trigger reset of meshtastic micro. It’s a hack but should work.

2026-03-17 18:43:02 UTC

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fallout vibes 😄

2026-03-10 19:18:05 UTC

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I’ve made a micropython port of reticulum and LXMF, but I haven’t uploaded to the repo the last major changes - Direct link messaging. I’ll upload it shortly there. Here’s the repo: https://github.com/varna9000/micropython-reticulum

2026-03-10 19:14:50 UTC

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can you check if you can click on the Message link at the bottom of the page and see the mp3 easter egg :) this file is downloaded directly off the microcontroller 😄

2026-03-10 19:12:00 UTC

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I’ve set it to announce itself every 60 seconds, so it should appear in your announce list shortly after you connect.

2026-03-10 17:58:10 UTC

I need volunteers for a test. I’m hosting #nomadnet #reticulum page on my experimental micropython esp32s3 node. Could you connect with nomadnet capable browser (MeshChat would do fine) with a tcp interface to rn.varnatransport.com:4243 and see if you can load the page? On the page there’s a link with mp3 - easter egg message (2kb) 😁 The page is hosted on the esp32s3 itself (below). I’ll leave the node online for few hours to see if it’s stable with more than one link (me).
https://cdn.fosstodon.org/media_attachments/files/116/206/163/556/323/275/original/c170a1e0b85ecc1a.jpeg

2026-03-10 15:21:26 UTC

Someone had torn all 4 tyres’ valves of my trailer. What a lowlife!
https://cdn.fosstodon.org/media_attachments/files/116/205/549/521/491/688/original/932b78e4ca95dd5a.png

2026-03-04 09:57:16 UTC

Now that I have basic #reticulum features on #micropython, should we add some oled output? 😁 Also, I’m thinking of some basic GUI for my T-deck, for LXMF node (send and receive). That would be glorious! I have played before with micropython and T-deck’s LoRa, so I just need to get the screen and keyboard libraries from it. Hopefully things have gotten easier with those drivers since I’ve visited that project 3 years ago. https://github.com/varna9000/t-deck-lorawan-micropython

2026-03-03 21:12:12 UTC

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Latest changes (mainly #Nomadnet node for page hosting and bug fixes) uploaded to the repo: https://github.com/varna9000/micropython-reticulum

2026-03-03 20:48:15 UTC

After some more testing, I could load #nomadnet #reticlum page over LoRa. The page is hosted directly on the esp32s3. I made also dynamic loading of the bmp280 sensor data 😄 If you just run normal node, the example node responds to “sensor” keyword and echoes back the sensor data. So either works fine on all three tested interfaces - TCP, UDP and LoRa (Rnode).
https://cdn.fosstodon.org/media_attachments/files/116/167/226/860/151/014/original/e12a1ccd365fff16.jpeg

2026-03-03 12:59:53 UTC

Now it’s quite easy to hook bme280 via i2c and show sensor data on #reticulum #nomadnet page, just using standalone esp32. No additional hardware needed. The page is served off the esp32 with #micropython
https://cdn.fosstodon.org/media_attachments/files/116/165/354/742/935/330/original/dec8a07c61cf82b9.png

2026-03-02 20:07:47 UTC

Micropython #reticulum is progressing nicely. I've just added:
1. Transport mode - routing packets between enabled interfaces
2. TCP client interface
I’ve tested sending announcements from laptop via UDP and TCP and I can see on the SDR the packets being re-transmitted over the LoRa interface. Changes are uploaded to the GitHub repo.
Next: Might be a stretch but I’m looking into hosting/serving NomadNet page on the micropython Node 😁
https://github.com/varna9000/micropython-reticulum

2026-03-01 22:26:46 UTC

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no worries, I’m happy if I can contribute to the community. I really like Reticulum and would love to see it used more widely. I think having python on the microcontroller, running reticulum would help with that.

2026-02-28 18:32:02 UTC

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Here’s a teaser what can be done on #reticulum with the #micropython port 😁 Looks like I’ve been using old memory restricted esp32 board and I kept running out of memory. Replacing the board with esp32s3, made a HUGE difference. Now everything is stable! https://youtu.be/Z38h_L_7n5E?si=3fieMshC2d7J3X5F

2026-02-28 16:09:34 UTC

I have some good news on the pprogress of the #micropython port of #reticulum. We can have an echo bot running on UDP interface. It’s still not stable enough, but we are getting there.
https://cdn.fosstodon.org/media_attachments/files/116/149/114/598/147/659/original/2893dfc79392c611.jpeg
https://cdn.fosstodon.org/media_attachments/files/116/149/114/599/800/815/original/7d95cb76e05a24f0.jpeg

2026-02-22 14:01:32 UTC

Now I can control GPIO with messaging a #reticulum node over LoRa. The target node is autonomous, running micro-reticulum firmware with some changes to accept gpio control and its status. Here I’m blinking a led via LXMF from MeshChat.
https://cdn.fosstodon.org/media_attachments/files/116/114/627/294/028/935/original/c961369d3721dd53.mp4

2026-02-19 06:20:56 UTC

Whoa! New sci-fi interface app for #reticulum https://github.com/FreeTAKTeam/Reticulum-Community-Hub
https://cdn.fosstodon.org/media_attachments/files/116/095/847/257/013/022/original/70d77ac146fcc2db.jpeg

2026-02-15 08:47:45 UTC

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i saw the video, but it takes a raspberry pi to take the picture. My idea is to get autonomous esp32, without additional hardware. The problem is that esp32-cam doesnt have enough pins. It does however have free uart, so perhaps it could run one of those integrated lora modules such as ebyte e220 as serial reticulum interface.

2026-02-14 09:52:18 UTC

I’ve got an idea. Autonomous remote solar Esp32-cam board, connected via lora to #reticulum, taking pictures on request or periodically and sending to chat/nomadnet 🤔🤔

2026-02-12 21:16:40 UTC

I'm trying to test Sideband #reticulum app. I’ve got T-deck Rnode connected via usb to my Nothing phone v1, but it seems the app can’t see the Rnode interface. It shows “Down”. I’m not usually Android user, do i need to do something explicitly? I’ve enabled USB debug just in case, but it doesn’t change anything. Any ideas?

2026-02-12 19:21:26 UTC

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I’ll report the power consumption in the next few days. For 6h it’s now 4.10V, which is not significant drop IMO

2026-02-12 12:59:22 UTC

Here’s my setup with Xaio nrf52 with the compiled micro #reticulum firmware in Transport mode. Currently battery is 4.11V, will measure it tomorrow, although there’s not much sun these days. Also there’s no really traffic except my other node’s announcements.
https://cdn.fosstodon.org/media_attachments/files/116/057/768/669/179/660/original/67ccfe54f176de18.jpeg

2026-02-10 15:33:07 UTC

RE: https://fosstodon.org/@circfruit/116037087731758544
Here’s my forked GitHub repo for the two additional boards for micro #reticulum . Since I don’t have VSCode, so all is done via command line. I’m also using UV for the python dependancies, since it’s much easier. If you fork it , get UV and run ‘uv sync’ and it’ll download all the dependancies. Then you can run either of the scripts for flashing the respective board. https://github.com/varna9000/microReticulum_Firmware/blob/master/CUSTOM_BOARDS.md
#note1335…j68n

2026-02-08 21:32:06 UTC

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I mean, someone has already done the hard work, but the only (probably) power efficient board is the RAK4631, the rest are all esp32s, which are power-hungry. RAK is also expensive, but the Xiao is just $10, so it could be a game changer if it works good. See the regional repo which I elaborated on: https://github.com/attermann/microReticulum_Firmware

2026-02-08 21:27:24 UTC

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yes, it is autonomous! microreticulum firmware has minimal stack in it, so it runs without additional HW. I’ve got another regular rnode and when I send announcement, I can see it in Xiao’s serial logs. See blow. The logs is a bess because newlines are not properly printed 😄
https://cdn.fosstodon.org/media_attachments/files/116/037/125/269/469/009/original/d392b9834b430965.jpeg

2026-02-08 21:17:25 UTC

Quite a good progress today on micro #reticulum (Rnode) firmware. I’ve managed (with the help of Claude) to make board definitions and build the firmware for Seeed Xiao nrf52840. The motivation behind this is the low power capabilities for the board. I want this to act in Transport mode, put a solar panel and batter on it and put it somewhere in the wild and forward the traffic, essentially extending reticulum over LoRa. I’m still to test it in the wild and see what the efficiency would be.
https://cdn.fosstodon.org/media_attachments/files/116/037/079/277/101/153/original/f86285dc2dd82799.jpeg
https://cdn.fosstodon.org/media_attachments/files/116/037/079/278/664/553/original/145405db1703db22.jpeg

2026-02-02 10:01:51 UTC

Finally got my hands on #reticulum this weekend. This is incredible! I’m sending voice and images over LoRa also webpages!! Reticulum deserves more popularity! #meshtastic #meshcore
https://cdn.fosstodon.org/media_attachments/files/116/000/451/438/517/374/original/e21106198c580148.mp4

2026-01-18 09:05:04 UTC

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I just had a look at the repo, are you suppose to download all models and LoRas listed there to get started? Seems unclear.

2025-07-30 16:27:14 UTC

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this post opened the door to Narnia for me. What are these techologies? I came here for Forth but all others… 😬

2025-07-16 06:40:09 UTC

People who put up, own and operate #meshtastic nodes should be called “noders” 😁

2025-05-26 18:53:33 UTC

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why would private relay be bad? Apple sniffing the traffic?

2025-04-17 06:20:50 UTC

Saw today this caterpillar train-like formation. Why do they do it? #nature #caterpillars
https://cdn.fosstodon.org/media_attachments/files/114/351/853/483/893/160/original/ba35220d16d7deb1.mp4

2025-04-05 05:11:26 UTC

I’ve been using #dracula theme for #emacs for almost 2 years now. My eyes got used to the colors of variables, operators etc. Every now and then one needs change and I kind of like modus-vivendi dark themses. However my mind somehow refuses now to adjust because it has mapped the syntax coloring to the dracula palette. Do you change your themes often and do you have the same problem?

2025-04-03 07:24:26 UTC

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I’m in the same boat over here. There’s meshtastic silence in the city but I’ve got few fellow enthusiasts with whom I can make a small network. There are commercial LoRa application such as water meters are converted into LoRa, but no meshtastic. I understand your wife 😂I wanted a ham licence but don’t really want to study.

2025-04-02 07:06:17 UTC

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I’ve been tinkering with LoRa for couple of years now but I think #meshtastic is the way forward as there’s almost zero config. Way easier than other solutions such as lorawan. What do you use it for?

2025-03-27 20:06:56 UTC

So Lilygo just released this beauty! I’ve always thought e-paper will go excellent with LoRa. Now I want this, so I can put #meshtastic on it! https://lilygo.cc/products/t-deck-pro

2025-03-22 09:24:38 UTC

Does anyone use ivy-rich with #Emacs? I want to show key chords next to the description of commands when doing completion in the mini buffer. I’ve seen videos/screenshots but not sure if it’s ivy or helm.
https://cdn.fosstodon.org/media_attachments/files/114/205/356/321/048/977/original/a3f6404653d1bad2.jpeg

2025-02-02 22:19:26 UTC

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very interesting. I haven’t thought about this.

2024-09-25 12:07:33 UTC

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you’ve got a point 😁

2024-09-24 18:20:35 UTC

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how do you switch your brain if you use some other computer? 😁

2024-09-24 17:15:01 UTC

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I need to give some credit to him, actually: https://github.com/pdelfino/my-karabiner-elements-config/blob/main/karabiner.json

2024-09-24 13:09:32 UTC

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today I remapped them with Karabiner. I went a bit further and remapped C-x h for “Select all” 😄 Some good guy on github had posted his config where I saw how I can remap key chords.

2024-09-22 16:35:21 UTC

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I’m still afraid going deeper into Karabiner 😄

2024-09-22 06:11:26 UTC

My experiment to re-assign copy, paste and cut in MacOS to my #emacs bindings was a failure. Many apps have hardcoded defaults and don’t respect the OS. 🤮 I used Mac OS’ rebinding but might try Karabiner.