Joined October 2007
- Tweets 2,010
- Following 67
- Followers 1,800
- Likes 38
66 Photos and videos
8 Mar 2023
Something seems to have changed in Twitter. Last Wednesday I got my first "you have notifications" email since 2018, which is a nice fix!
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Sean Cross retweeted
10 Sep 2022
15 minutes until our livestream, with @helenleigh dialing in live from our Open Hack Day, with special guest @xobs.
Join us to take a look at his latest hardware, ask questions, and get inspired by the range of projects people are working on today ⤵️
youtube.com/watch?v=-VM6Sx8F…
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6 Jul 2022
I justreleased a first draft of filesystem support on Xous using PDDB as a backing! `std::fs::File` and friends now behave like you think they should on Xous. More information at xobs.io/experimental-rust-fi…
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30 May 2022
Xous now supports the underpinnings to create processes at runtime! xobs.io/xous-process-creatio…
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12 Aug 2021
I've been working on a new embedded operating system called Xous. It's a memory protected microkernel. I just released a port of Rust's standard library for it. So nice to have an allocator again. xobs.io/porting-rust-standar…
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19 Nov 2020
I've been using the @renodeio emulator from @antmicro to develop the software stack for #Precursor. I posted about the rationale behind using Renode and some of the cool things you can do with it at xobs.io/precursor-and-renode…
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Sean Cross retweeted
14 Jul 2020
🔥 Critical Internet #outage detected: #ViewQwest in #Singapore since 6:10 PM, impacting #Singapore
🇸🇬 Live map and analysis
👉 internet.fing.com/provider/V…
Retweet if down for you too
#viewqwest #ViewQwestdown #ViewQwestoutage #nointernet #新加坡 #evenings
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Sean Cross retweeted
22 Jun 2020
I was invited to review Singapore's #TraceTogether contact tracing token. Thoughts at bunniestudios.com/blog/?p=58…
My favorite insight: Singapore needs a token to serve two groups: the underprivileged, and iPhone users. Both don't own a phone, but for different reasons.
@GovTechSG
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Sean Cross retweeted
22 Jun 2020
Thank you @harishpillay and @xobs for joining the session, and sharing your insights to how we can improve the #TraceTogether Token.
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Sean Cross retweeted
21 Jun 2020
Thanks, Xobs. Good read. I decided not to duplicate what you did and have mine here: harishpillay.wordpress.com/2…
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21 Jun 2020
I put together some of my thoughts on the @GovTechSG Trace Together Token at xobs.io/trace-together-token… -- tl;dr is that the hardware looks good, and we'll have to wait to see how the software looks
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20 Jun 2020
I got invited to the GovTech offices yesterday to take a look at the TraceTogether Token they developed. It's a sound approach they're taking. It was great to meet Minister Vivian Balakrishnan and hear some of the reasoning behind the Trace Together decisions.
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20 Jun 2020
I'm putting together a blogpost describing my take on this approach, as well as my views of Trace Together overall.
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4 Dec 2019
Informal survey: How many people have tried Foboot v2.0.3 (required for Circuitpython on Fomu)? Have you had any problems? I'm going to the factory and I'm considering whether to start shipping all new units.
75%
I haven't tried v2.0.3
0%
v2.0.3 didn't work
17%
v2.0.3 worked just fine
8%
Installed v2.0.3 updater
12 votes • Final results
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Sean Cross retweeted
1 Dec 2019
Found a sample with a defect! My own rework -_-
The FOMU DVT board I got from @xobs early this year and tried to fix. Looks like I still have a short under the BGA 😨😳
@tomu_im
I guess I'll need to go in and fix this agin at some point.
x.com/GregDavill/status/1154…
26 Jul 2019
Friday night. I think I'll attempt the repair on a dead fomu board @xobs gave me while I was at @LatchUpConf
These were early DVT boards with two major issues.
1. Crystal mounted 180
2. Missing power to the FPGA.
It's pretty likely I'll mess this up. But want to give it a go.
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30 Nov 2019
I'm trying to improve the performance of circuitpython-on-Fomu, and the easiest solution is to move some stuff into RAM. The question is: Which stuff? Hacky-no-profiler soltuion: break into gdb every 10 seconds, do a backtrace, and continue. Accelerate the functions in SPI flash.
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30 Nov 2019
Want Python in your USB port? Try the beta of @adafruit @CircuitPython for Fomu! Full USB support thanks to the new eptri USB port, and the awesome @tinyusb library. Binaries and instructions at github.com/xobs/circuitpytho…
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14 Jul 2019
The #fomu pcb is super tiny, so we use a drill to remove them from their panels. Sadlyzl, a few Fomu boards decided to go exploring as the drill bit came by. It looks like someone used the "erase" brush in real life. Happily, most came out unscathed! We'll fix this next time.
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10 Jul 2019
Fixing the #fomu factory test jig. Today we'll start testing and programming Fomu production units!
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5 Jul 2019
Just got done populating four light sensor boards. These will go in the #fomu factory tester to make sure the rgb led is working.
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