Daniel Mangum @danielmangum.com · 26/09/2026mapping a production kubernetes cluster? maybe we have hit AGI. 060
Daniel Mangum @danielmangum.com · 23/08/2026it’s not every day that you see an oscilloscope ad in the airport. 191
Daniel Mangum @danielmangum.com · 07/08/2026if your measurement doesn’t look right, you might just be measuring the wrong thing. 040
Daniel Mangum @danielmangum.com · 31/07/2026**The Simple Elegance of the Integrated Timing Belt Loopback Fastener** I wrote about a technique I recently learned about for securing timing belts to actuated components, which I have dubbed the "integrated loopback fastener". danielmangum.com/posts/integr... 001
Daniel Mangum @danielmangum.com · 25/07/2026i saw one of these Veeder Root mechanical fuel pump computers in the wild last weekend and now i can’t stop reading the manual. 060
Daniel Mangum @danielmangum.com · 14/07/2026Part of a weekend project coming together: belt-driven linear actuator with a 28BYJ-48 stepper controlled by Zephyr firmware on a @nordicsemi.com nRF52840. Linear rail bases and carriage attachment designed from scratch in Onshape and printed on Bambu Lab A1 Mini. 032
Daniel Mangum @danielmangum.com · 13/07/2026I accidentally cut too far in on the corner of this rail / motor support base, but now I kind of like it. 010
Daniel Mangum @danielmangum.com · 11/07/2026you know it’s gonna be a great weekend when it starts with a new set of machine screws being delivered. 030
Daniel Mangum @danielmangum.com · 08/07/2026these timing belt attachments should work, but they sure don't look like they will. 000
Daniel Mangum @danielmangum.com · 08/07/2026waiting for a set of properly sized machine screws and bolts to come in, but clearances appear to be fine testing with some M3x25’s I had on hand. 100
Daniel Mangum @danielmangum.com · 08/07/2026small test print to evaluate printer accuracy on clearance holes. 120
Daniel Mangum @danielmangum.com · 01/07/2026Motor control with Zephyr’s stepper driver API on the @nordicsemi.com nRF52840. 040
Daniel Mangum @danielmangum.com · 22/06/2026Saw there was some space left on the @tinytapeout.com GF 26B shuttle that closes tomorrow, so I had to get a quick design in! Extremely simple hardware implementation of demosaicing using nearest neighbor interpolation, with pixel data being delivered over UART. 060
Daniel Mangum @danielmangum.com · 19/06/2026Lona and I went on a rescue mission for this little guy today. 060
Daniel Mangum @danielmangum.com · 17/06/2026this is exactly the kind of sass I'm looking for from my agents. 030
Daniel Mangum @danielmangum.com · 08/06/2026i did not expect to find this level of detail in the sony service manuals. 130
Daniel Mangum @danielmangum.com · 04/06/2026american startups thinking they have creative company names don’t even know how far behind they are. 122
Daniel Mangum @danielmangum.com · 03/06/2026“It’s one Difference Engine, Babbage, how much could it cost?” 010
Daniel Mangum @danielmangum.com · 31/05/2026the favorite lock-free data structure of software engineers who also love The Office. 1100
Daniel Mangum @danielmangum.com · 30/05/2026**JLink JTAG Access on the Pinecil** I've been doing more work on the Pinecil recently with Bouffalo Lab BL706 (SiFive E24 core complex) support landing upstream in Zephyr. I wrote a short post detailing how to use a JLink for JTAG access to the RISC-V debug unit. danielmangum.com/posts/jlink-... 043
Daniel Mangum @danielmangum.com · 20/05/2026Come to my talk at RISC-V Summit tomorrow to see me connect things to the internet that probably shouldn’t be connected to the internet. 130
Daniel Mangum @danielmangum.com · 18/05/2026the number of wires will continue increasing until morale improves. 928620
Daniel Mangum @danielmangum.com · 18/05/2026Looking forward to @linuxfoundation.org #OSSummit this week! I’ll be giving a fun talk at the @riscvinternational.bsky.social Mini Summit on Thursday on connecting the Pinecil soldering iron to the internet using Zephyr and @canonicalltd.bsky.social / @golioth.io. Reach out to you’d like to chat! 041
Daniel Mangum @danielmangum.com · 04/05/2026transatlantic flights are the best time for some hardware hacking. 240
Daniel Mangum @danielmangum.com · 21/04/2026they really told the TRINAMIC marketing team at ADI to go all out. 020
Daniel Mangum @danielmangum.com · 16/04/2026**Floating Point Fun on Cortex-M Processors** New post in which I explore floating point ABIs on Arm Cortex-M processors, using the @nordicsemi.com nRF52840 as an example, and demonstrate how one might go about dynamically enabling the FPU during program execution. danielmangum.com/posts/floati... 061
Daniel Mangum @danielmangum.com · 13/04/2026ICYMI: Last week I wrote about the PSA Crypto API, how it enables leveraging security features across heterogeneous hardware, and why it may ease the transition to post-quantum cryptography on MCU-class devices. danielmangum.com/posts/psa-cr... 040
Daniel Mangum @danielmangum.com · 10/04/2026**PSA Crypto: The P is for Portability** New post in which I provide an overview of the PSA Crypto API, describe how implementations differ across hardware ( e.g. @nordicsemi.com vs. Espressif), and look ahead to upcoming Post-Quantum Crypto on constrained devices. danielmangum.com/posts/psa-cr... 063
Daniel Mangum @danielmangum.com · 08/04/2026"Terminology for Constrained-Node Networks" (IETF Draft RFC 7228bis) has some useful classifications of devices on dimensions of RAM / flash, upgradability, isolation, secret shielding, available power, networking capabilities, bandwidth, and more. www.ietf.org/archive/id/d... 020
Daniel Mangum @danielmangum.com · 09/03/2026first race outside the US: victoria park half marathon. 030
![In September 2018, Alibaba announced the establishment of a new semiconductor subsidiary company called T-Head which is known as Pingtouge in China.[2][3] It was spun out of Alibaba's research institute DAMO Academy.[3] Pingtouge, which translates to "flat head brother", is the nickname given by Chinese internet users to the honey badger. The name was chosen as honey badgers were said to be brave and smart despite being which represented the spirit the new company aimed for.[2]](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:j22nebhg6aek3kt2mex5ng7e/bafkreihfiuatqjzidc3pv7x3qakypv3wr2jcvhny6svdkiqd5antffbogm)
