Peterus :3
@petertanner.dev
Embedded/electronic engineer // https://github.com/peter-tanner // https://www.petertanner.dev // Currently working on a rocket flight computer and an open FPGA GNSS receiver
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Pinned
Peterus :3
@petertanner.dev
· Dec 1
i'm looking for more friends :3 #promosky
* high-power rocketry
* games: factorio, minecraft, hl2, terraria, satisfactory, genshin
* self hosting
* electronics test and measurement equipment
* PCB design
* RF/microwave engineering
* FPGA
* STM32
* C
* satellites, space
* full stack web development
* high-power rocketry
* games: factorio, minecraft, hl2, terraria, satisfactory, genshin
* self hosting
* electronics test and measurement equipment
* PCB design
* RF/microwave engineering
* FPGA
* STM32
* C
* satellites, space
* full stack web development
Completed Factorio space age DLC blind (no guides/tutorials/blueprints) in just under 100 hours! The game has come a long way from when the win objective was just the "rocket defense" item.
The platform made heavy use of the new set recipe of the circuit network to dynamically change recipes
The platform made heavy use of the new set recipe of the circuit network to dynamically change recipes
November 15, 2025 at 2:33 PM
Completed Factorio space age DLC blind (no guides/tutorials/blueprints) in just under 100 hours! The game has come a long way from when the win objective was just the "rocket defense" item.
The platform made heavy use of the new set recipe of the circuit network to dynamically change recipes
The platform made heavy use of the new set recipe of the circuit network to dynamically change recipes
why does vivaldi not support the chrome.omnibox api?
calculators peaked with [this](addons.mozilla.org/en-US/firefo...) extension.
every calculator which emulates a physical calc layout sucks, powertoys calc doesn't support ISO units, mathematica works but is syntatically more effort for units
calculators peaked with [this](addons.mozilla.org/en-US/firefo...) extension.
every calculator which emulates a physical calc layout sucks, powertoys calc doesn't support ISO units, mathematica works but is syntatically more effort for units
November 10, 2025 at 6:11 PM
why does vivaldi not support the chrome.omnibox api?
calculators peaked with [this](addons.mozilla.org/en-US/firefo...) extension.
every calculator which emulates a physical calc layout sucks, powertoys calc doesn't support ISO units, mathematica works but is syntatically more effort for units
calculators peaked with [this](addons.mozilla.org/en-US/firefo...) extension.
every calculator which emulates a physical calc layout sucks, powertoys calc doesn't support ISO units, mathematica works but is syntatically more effort for units
Seriously burnt out right now even though the sem is over, literally nothing i'm doing to unwind is making me happy/satisfied. Still stuck in the mindset of making pcbs when I really don't feel like it.
Here's a thing using the esp32-p4, apparently it has a h264 encoder.
Here's a thing using the esp32-p4, apparently it has a h264 encoder.
November 8, 2025 at 9:42 PM
Seriously burnt out right now even though the sem is over, literally nothing i'm doing to unwind is making me happy/satisfied. Still stuck in the mindset of making pcbs when I really don't feel like it.
Here's a thing using the esp32-p4, apparently it has a h264 encoder.
Here's a thing using the esp32-p4, apparently it has a h264 encoder.
$3/unit DB-25 RS-232 to USB converter from junk perfboard implementation to my first purple PCB since like 2021.
2 layer designs seem to have the advantage of being able to get eco PCBA with all colors (except yellow) without eng fee
2 layer designs seem to have the advantage of being able to get eco PCBA with all colors (except yellow) without eng fee
October 25, 2025 at 6:41 PM
$3/unit DB-25 RS-232 to USB converter from junk perfboard implementation to my first purple PCB since like 2021.
2 layer designs seem to have the advantage of being able to get eco PCBA with all colors (except yellow) without eng fee
2 layer designs seem to have the advantage of being able to get eco PCBA with all colors (except yellow) without eng fee
I got plotting working on the oscilloscope over RS-232 to my PC :3
I'm using hp2xx to rasterize the HP-GL file
I'm using hp2xx to rasterize the HP-GL file
October 24, 2025 at 5:49 PM
I got plotting working on the oscilloscope over RS-232 to my PC :3
I'm using hp2xx to rasterize the HP-GL file
I'm using hp2xx to rasterize the HP-GL file
Free books from an EECE prof's office clear out. Took home some nice dsp, fiber comms and os books
October 21, 2025 at 2:35 PM
Free books from an EECE prof's office clear out. Took home some nice dsp, fiber comms and os books
Worst thing I built all year
October 18, 2025 at 3:36 PM
Worst thing I built all year
Second laser analog frontend PCB soldered.
What's the deal with most low cost laser diodes not specifying their maximum frequency in their datasheets and not giving spice models?
Also had to replace the modulation pot with a 1kR since the 10kR did not supply enough current at high frequency.
What's the deal with most low cost laser diodes not specifying their maximum frequency in their datasheets and not giving spice models?
Also had to replace the modulation pot with a 1kR since the 10kR did not supply enough current at high frequency.
October 10, 2025 at 4:23 PM
Second laser analog frontend PCB soldered.
What's the deal with most low cost laser diodes not specifying their maximum frequency in their datasheets and not giving spice models?
Also had to replace the modulation pot with a 1kR since the 10kR did not supply enough current at high frequency.
What's the deal with most low cost laser diodes not specifying their maximum frequency in their datasheets and not giving spice models?
Also had to replace the modulation pot with a 1kR since the 10kR did not supply enough current at high frequency.
A pic of the 50 MHz custom laser driver/receiver frontend from earlier in construction. Really terrible solder paste application but I don't use stencils.
October 4, 2025 at 6:42 PM
A pic of the 50 MHz custom laser driver/receiver frontend from earlier in construction. Really terrible solder paste application but I don't use stencils.
Just did an end to end test of our laser driver (built without any commercial driver ICs) and receiver, good to 50 MHz which is good enough.
October 4, 2025 at 6:32 PM
Just did an end to end test of our laser driver (built without any commercial driver ICs) and receiver, good to 50 MHz which is good enough.
Since when did stm32 have data matrices on their package markings?
October 4, 2025 at 6:09 PM
Since when did stm32 have data matrices on their package markings?
Also made a cute dev board for LCC-18 (U-blox MAX/ATGM336) and LCC-24 (U-blox NEO/ATGM336) GNSS receiver modules (one board which can take either module type!) :3 The layout is a mess and definitely not ideal but I had to minimize space since I want to put a few in a payload bay.
September 5, 2025 at 7:13 PM
Also made a cute dev board for LCC-18 (U-blox MAX/ATGM336) and LCC-24 (U-blox NEO/ATGM336) GNSS receiver modules (one board which can take either module type!) :3 The layout is a mess and definitely not ideal but I had to minimize space since I want to put a few in a payload bay.
I've spent so much money on GNSS modules in the last month, what am I doing 😭
Going to do a writeup on the ATGM336H-F8N76 which claims to be L1/L5 and 20Hz which is better than the NEO-F10N at least in ODR.
Going to do a writeup on the ATGM336H-F8N76 which claims to be L1/L5 and 20Hz which is better than the NEO-F10N at least in ODR.
September 5, 2025 at 7:06 PM
I've spent so much money on GNSS modules in the last month, what am I doing 😭
Going to do a writeup on the ATGM336H-F8N76 which claims to be L1/L5 and 20Hz which is better than the NEO-F10N at least in ODR.
Going to do a writeup on the ATGM336H-F8N76 which claims to be L1/L5 and 20Hz which is better than the NEO-F10N at least in ODR.
One of the RAM slots (not the RAM stick) on my laptop just failed ://
Strange failure mode, since sometimes it powers on but doesn't load the bios, and other times it crashes at windows login screen despite passing memtest86...
Guessing it's a bad solder joint somewhere, not electrical damage.
Strange failure mode, since sometimes it powers on but doesn't load the bios, and other times it crashes at windows login screen despite passing memtest86...
Guessing it's a bad solder joint somewhere, not electrical damage.
July 30, 2025 at 1:05 PM
One of the RAM slots (not the RAM stick) on my laptop just failed ://
Strange failure mode, since sometimes it powers on but doesn't load the bios, and other times it crashes at windows login screen despite passing memtest86...
Guessing it's a bad solder joint somewhere, not electrical damage.
Strange failure mode, since sometimes it powers on but doesn't load the bios, and other times it crashes at windows login screen despite passing memtest86...
Guessing it's a bad solder joint somewhere, not electrical damage.
Going to make a laser turret from a meeting room camera :3 eventually
Either way it's a free 2 axis
Either way it's a free 2 axis
July 29, 2025 at 3:35 PM
Going to make a laser turret from a meeting room camera :3 eventually
Either way it's a free 2 axis
Either way it's a free 2 axis
My laptop gave me a heart attack by not booting into bios and only displaying a black screen, I thought it died... Had to press f2 while holding power button
July 29, 2025 at 3:31 PM
My laptop gave me a heart attack by not booting into bios and only displaying a black screen, I thought it died... Had to press f2 while holding power button
TIL old server UPS are a good way to get high quality high power transformers for free (from uni ewaste bins). Unlike microwave oven transformers which don't alternate the E and I pieces to save cost.
July 25, 2025 at 4:12 PM
TIL old server UPS are a good way to get high quality high power transformers for free (from uni ewaste bins). Unlike microwave oven transformers which don't alternate the E and I pieces to save cost.
Played Factorio all day instead of doing anything productive, but I think I deserve it after wrapping up exams
July 16, 2025 at 8:59 PM
Played Factorio all day instead of doing anything productive, but I think I deserve it after wrapping up exams
Moved the Fluke 45 into her new home :3 no more multimeters beeping at me because I left them on
July 11, 2025 at 3:21 PM
Moved the Fluke 45 into her new home :3 no more multimeters beeping at me because I left them on
Tektronix calibration sticker on my fluke 45 multimeter!
July 11, 2025 at 3:05 PM
Tektronix calibration sticker on my fluke 45 multimeter!
What's stopping me from using a human presence 24 GHz FMCW radar for sensing water level? I haven't seen anyone try it. I see the ones actually meant for level sensing are very wide bandwidth (4 GHz compared to 0.25 GHz) and have a more directed beam.
June 29, 2025 at 1:50 PM
What's stopping me from using a human presence 24 GHz FMCW radar for sensing water level? I haven't seen anyone try it. I see the ones actually meant for level sensing are very wide bandwidth (4 GHz compared to 0.25 GHz) and have a more directed beam.
Bought a Fluke 45 instead lol
June 18, 2025 at 2:20 AM
Bought a Fluke 45 instead lol
How hard is it to make a replacement for the 3A fuse holder of a HP 3478A multimeter?
June 5, 2025 at 5:50 PM
How hard is it to make a replacement for the 3A fuse holder of a HP 3478A multimeter?
