Daniel Mangum
@danielmangum.com
big fan of computers and human beings.
**Interesting SPI Routing with iCE40 FPGAs**
I wrote about iCE40 FPGAs, and why the way an FPGA is configured can lead to interesting board design decisions. @mith.ro's Fomu is a useful study due to eschewing a USB-Serial chip for accessing the FPGA and SPI flash.
danielmangum.com/posts/spi-ro...
I wrote about iCE40 FPGAs, and why the way an FPGA is configured can lead to interesting board design decisions. @mith.ro's Fomu is a useful study due to eschewing a USB-Serial chip for accessing the FPGA and SPI flash.
danielmangum.com/posts/spi-ro...
November 7, 2025 at 12:34 PM
**Interesting SPI Routing with iCE40 FPGAs**
I wrote about iCE40 FPGAs, and why the way an FPGA is configured can lead to interesting board design decisions. @mith.ro's Fomu is a useful study due to eschewing a USB-Serial chip for accessing the FPGA and SPI flash.
danielmangum.com/posts/spi-ro...
I wrote about iCE40 FPGAs, and why the way an FPGA is configured can lead to interesting board design decisions. @mith.ro's Fomu is a useful study due to eschewing a USB-Serial chip for accessing the FPGA and SPI flash.
danielmangum.com/posts/spi-ro...
I think @golioth.io may be the first custom Brick in @officialarduino.bsky.social App Lab 👀
We make use of both the BLE and Wi-Fi connectivity on the UNO Q to proxy data for BLE peripherals, stream data from attached sensors, and perform network-based positioning with Golioth Location!
We make use of both the BLE and Wi-Fi connectivity on the UNO Q to proxy data for BLE peripherals, stream data from attached sensors, and perform network-based positioning with Golioth Location!
November 5, 2025 at 5:53 PM
I think @golioth.io may be the first custom Brick in @officialarduino.bsky.social App Lab 👀
We make use of both the BLE and Wi-Fi connectivity on the UNO Q to proxy data for BLE peripherals, stream data from attached sensors, and perform network-based positioning with Golioth Location!
We make use of both the BLE and Wi-Fi connectivity on the UNO Q to proxy data for BLE peripherals, stream data from attached sensors, and perform network-based positioning with Golioth Location!
@golioth.io ⚡️ @edgeimpulse.com ⚡️ @nordicsemi.com
Working on a fun project with @szczys.bsky.social this weekend combining Edge Impulse gesture recognition models with Golioth Bluetooth connectivity, running on an nRF52840 connected to the Tikk board (by @chrisgammell.bsky.social) for LEDs and IMU!
Working on a fun project with @szczys.bsky.social this weekend combining Edge Impulse gesture recognition models with Golioth Bluetooth connectivity, running on an nRF52840 connected to the Tikk board (by @chrisgammell.bsky.social) for LEDs and IMU!
November 2, 2025 at 2:46 AM
@golioth.io ⚡️ @edgeimpulse.com ⚡️ @nordicsemi.com
Working on a fun project with @szczys.bsky.social this weekend combining Edge Impulse gesture recognition models with Golioth Bluetooth connectivity, running on an nRF52840 connected to the Tikk board (by @chrisgammell.bsky.social) for LEDs and IMU!
Working on a fun project with @szczys.bsky.social this weekend combining Edge Impulse gesture recognition models with Golioth Bluetooth connectivity, running on an nRF52840 connected to the Tikk board (by @chrisgammell.bsky.social) for LEDs and IMU!
Sundays are for FPGAs!
October 26, 2025 at 11:14 PM
Sundays are for FPGAs!
I enjoy that despite the fact that LLMs are notorious for their overuse of the em dash, Gemini fails to produce the character when asked about it specifically.
October 26, 2025 at 10:57 PM
I enjoy that despite the fact that LLMs are notorious for their overuse of the em dash, Gemini fails to produce the character when asked about it specifically.
@golioth.io ❤️ @officialarduino.bsky.social
My UNO Q board arrived yesterday and it took only a few minutes to get up and running with an application that communicated with Golioth over Wi-Fi. I can’t think of a better development kit to demonstrate the flexibility of the Golioth platform!
My UNO Q board arrived yesterday and it took only a few minutes to get up and running with an application that communicated with Golioth over Wi-Fi. I can’t think of a better development kit to demonstrate the flexibility of the Golioth platform!
October 25, 2025 at 3:06 PM
@golioth.io ❤️ @officialarduino.bsky.social
My UNO Q board arrived yesterday and it took only a few minutes to get up and running with an application that communicated with Golioth over Wi-Fi. I can’t think of a better development kit to demonstrate the flexibility of the Golioth platform!
My UNO Q board arrived yesterday and it took only a few minutes to get up and running with an application that communicated with Golioth over Wi-Fi. I can’t think of a better development kit to demonstrate the flexibility of the Golioth platform!
**Using a Laptop as an HDMI Monitor for an SBC**
Wrote up some quick notes on how I use HDMI to USB capture cards to breathe new life into old laptops as HDMI monitors for my single board computers (SBCs).
danielmangum.com/posts/laptop...
Wrote up some quick notes on how I use HDMI to USB capture cards to breathe new life into old laptops as HDMI monitors for my single board computers (SBCs).
danielmangum.com/posts/laptop...
October 9, 2025 at 1:40 PM
**Using a Laptop as an HDMI Monitor for an SBC**
Wrote up some quick notes on how I use HDMI to USB capture cards to breathe new life into old laptops as HDMI monitors for my single board computers (SBCs).
danielmangum.com/posts/laptop...
Wrote up some quick notes on how I use HDMI to USB capture cards to breathe new life into old laptops as HDMI monitors for my single board computers (SBCs).
danielmangum.com/posts/laptop...
I recently learned about Princess Cruises Medallions because I was traveling through a port city and a quick scan of BLE devices revealed that the airport was teeming with them. Interesting little beacon device that appears to be used for everything from unlocking your room to paying for food.
September 28, 2025 at 11:45 PM
I recently learned about Princess Cruises Medallions because I was traveling through a port city and a quick scan of BLE devices revealed that the airport was teeming with them. Interesting little beacon device that appears to be used for everything from unlocking your room to paying for food.
Currently reading the Feynman Lectures on Physics while on a short vacation this weekend — we should all strive to communicate technical concepts so effectively.
September 27, 2025 at 8:23 PM
Currently reading the Feynman Lectures on Physics while on a short vacation this weekend — we should all strive to communicate technical concepts so effectively.
today was a good day.
September 26, 2025 at 1:14 AM
today was a good day.
Today we are launching support for device signed URLs on @golioth.io! Almost everyone uses signed URLs on a daily basis to access private content on CDNs, but they can also be useful in the context of complex multi-protocol embedded devices.
Read more: blog.golioth.io/signed-urls-...
Read more: blog.golioth.io/signed-urls-...
September 16, 2025 at 3:28 PM
Today we are launching support for device signed URLs on @golioth.io! Almost everyone uses signed URLs on a daily basis to access private content on CDNs, but they can also be useful in the context of complex multi-protocol embedded devices.
Read more: blog.golioth.io/signed-urls-...
Read more: blog.golioth.io/signed-urls-...
Awesome Bluetooth board that can be controlled from anywhere via @golioth.io!
Hardware and firmware courtesy of @chrisgammell.bsky.social and @szczys.bsky.social — perfect little digital signage for the office.
Hardware and firmware courtesy of @chrisgammell.bsky.social and @szczys.bsky.social — perfect little digital signage for the office.
September 14, 2025 at 9:51 PM
Awesome Bluetooth board that can be controlled from anywhere via @golioth.io!
Hardware and firmware courtesy of @chrisgammell.bsky.social and @szczys.bsky.social — perfect little digital signage for the office.
Hardware and firmware courtesy of @chrisgammell.bsky.social and @szczys.bsky.social — perfect little digital signage for the office.
showing off @chrisgammell.bsky.social’s handiwork.
September 13, 2025 at 2:15 PM
showing off @chrisgammell.bsky.social’s handiwork.
this week’s friday print.
September 12, 2025 at 4:59 PM
this week’s friday print.
early prototype for the base in a dev board mounting system.
September 12, 2025 at 3:30 AM
early prototype for the base in a dev board mounting system.
Interesting to see Apple continue bringing networking chips in-house, debuting the N1 across the iPhone 17 lineup, and introducing the C1X cellular modem in the iPhone Air.
Full control over a critical power hungry radio undoubtedly plays a role in offering long battery life in such a slim profile.
Full control over a critical power hungry radio undoubtedly plays a role in offering long battery life in such a slim profile.
September 9, 2025 at 10:13 PM
Interesting to see Apple continue bringing networking chips in-house, debuting the N1 across the iPhone 17 lineup, and introducing the C1X cellular modem in the iPhone Air.
Full control over a critical power hungry radio undoubtedly plays a role in offering long battery life in such a slim profile.
Full control over a critical power hungry radio undoubtedly plays a role in offering long battery life in such a slim profile.
big upgrade to the home workbench this week!
August 29, 2025 at 6:20 PM
big upgrade to the home workbench this week!
The number of locations is growing in the US, but the concentration in the UK is mind boggling.
August 24, 2025 at 4:04 PM
The number of locations is growing in the US, but the concentration in the UK is mind boggling.
thinking I may need to start all future blog posts with this intro from Benjamin Franklin's "Rules by Which a Great Empire May Be Reduced to a Small One".
August 7, 2025 at 12:26 PM
thinking I may need to start all future blog posts with this intro from Benjamin Franklin's "Rules by Which a Great Empire May Be Reduced to a Small One".
them: "you need to produce more short form content"
me: "portions of the disassembly are removed for brevity"
me: "portions of the disassembly are removed for brevity"
July 15, 2025 at 7:40 PM
them: "you need to produce more short form content"
me: "portions of the disassembly are removed for brevity"
me: "portions of the disassembly are removed for brevity"
I guess we're doing the orange site this morning.
July 4, 2025 at 9:50 AM
I guess we're doing the orange site this morning.