Paul Stoffregen
@paulstoffregen.bsky.social
Electronics, Teensy, Arduino, Making, DIY Tech
he/him
he/him
Open Source DIY Thermocam V3 Teensy-based thermal imaging platform brings thermal analysis to the masses
www.pjrc.com/diy-thermocam/
www.pjrc.com/diy-thermocam/
February 19, 2026 at 9:13 PM
Open Source DIY Thermocam V3 Teensy-based thermal imaging platform brings thermal analysis to the masses
www.pjrc.com/diy-thermocam/
www.pjrc.com/diy-thermocam/
Teensy software 1.60 released, larger PSRAM, Lockable Teensy Plugin, I2C, SoftwareSerial, NKRO Keyboard, and many fixes & improvements
www.pjrc.com/teensyduino-...
www.pjrc.com/teensyduino-...
February 18, 2026 at 1:54 PM
Teensy software 1.60 released, larger PSRAM, Lockable Teensy Plugin, I2C, SoftwareSerial, NKRO Keyboard, and many fixes & improvements
www.pjrc.com/teensyduino-...
www.pjrc.com/teensyduino-...
JarkkoL has ported their tiled software rasterizer to #Teensy and ILI9341 using just 27kb of RAM, with 4,000 triangles stored in flash, and featuring asynchronous DMA transfer, cluster visibility culling, and texture support.
www.pjrc.com/3d-rendering/
www.pjrc.com/3d-rendering/
February 17, 2026 at 3:41 PM
JarkkoL has ported their tiled software rasterizer to #Teensy and ILI9341 using just 27kb of RAM, with 4,000 triangles stored in flash, and featuring asynchronous DMA transfer, cluster visibility culling, and texture support.
www.pjrc.com/3d-rendering/
www.pjrc.com/3d-rendering/
Many Teensy enthusiasts are so passionate about audio synthesis, you might say they could write a book on it. In the case of Ken Wessen, this is literally the case!
pjrc.com/constructive...
thewessens.net/synthbook/
pjrc.com/constructive...
thewessens.net/synthbook/
February 16, 2026 at 8:23 PM
Many Teensy enthusiasts are so passionate about audio synthesis, you might say they could write a book on it. In the case of Ken Wessen, this is literally the case!
pjrc.com/constructive...
thewessens.net/synthbook/
pjrc.com/constructive...
thewessens.net/synthbook/
coelacant1 has brought real-time rendering and animation to Teensy with the ProtoTracer engine for LED matrixes
pjrc.com/prototracer-...
pjrc.com/prototracer-...
February 12, 2026 at 9:40 PM
coelacant1 has brought real-time rendering and animation to Teensy with the ProtoTracer engine for LED matrixes
pjrc.com/prototracer-...
pjrc.com/prototracer-...
DJ Harrigan, aka Mr. Volt, has created a #Teensy powered dice box with a twist.
pjrc.com/magic-dice-b...
www.youtube.com/watch?v=2MN4...
pjrc.com/magic-dice-b...
www.youtube.com/watch?v=2MN4...
February 11, 2026 at 3:46 PM
DJ Harrigan, aka Mr. Volt, has created a #Teensy powered dice box with a twist.
pjrc.com/magic-dice-b...
www.youtube.com/watch?v=2MN4...
pjrc.com/magic-dice-b...
www.youtube.com/watch?v=2MN4...
Andrei Kudryavtsev of DeftAudio created a 8x14 MIDI and audio interface using Teensy 4.1. It's available as a kit at Tindie and source code on Github.
www.pjrc.com/8x14-1u-midi...
www.tindie.com/products/def...
www.pjrc.com/8x14-1u-midi...
www.tindie.com/products/def...
January 27, 2026 at 10:07 PM
Andrei Kudryavtsev of DeftAudio created a 8x14 MIDI and audio interface using Teensy 4.1. It's available as a kit at Tindie and source code on Github.
www.pjrc.com/8x14-1u-midi...
www.tindie.com/products/def...
www.pjrc.com/8x14-1u-midi...
www.tindie.com/products/def...
I always love it when an OSH Park purple PCB package arrives!
January 15, 2026 at 5:41 AM
I always love it when an OSH Park purple PCB package arrives!
Evan Rust used SparkFun MicroMod Teensy with Edge Impulse software to achieve 92.7% keyword recognition accuracy.
www.pjrc.com/audio-keywor...
www.hackster.io/gatoninja236...
www.pjrc.com/audio-keywor...
www.hackster.io/gatoninja236...
December 30, 2025 at 8:07 PM
Evan Rust used SparkFun MicroMod Teensy with Edge Impulse software to achieve 92.7% keyword recognition accuracy.
www.pjrc.com/audio-keywor...
www.hackster.io/gatoninja236...
www.pjrc.com/audio-keywor...
www.hackster.io/gatoninja236...
Reposted by Paul Stoffregen
From the NTSB investigation into the Titan submersible, thats the internals of some super expensive commercial deep sea camera they used and it contains some redacted @adafruit.com Qwiic/Stemma board and a Teensy 3.2
Very funny that they requested to redact the markings.
Very funny that they requested to redact the markings.
October 19, 2025 at 1:04 AM
From the NTSB investigation into the Titan submersible, thats the internals of some super expensive commercial deep sea camera they used and it contains some redacted @adafruit.com Qwiic/Stemma board and a Teensy 3.2
Very funny that they requested to redact the markings.
Very funny that they requested to redact the markings.
minichord by Benjamin Poilve is a pocket size instrument used to build chord progressions, internally using Teensy 4.0.
www.pjrc.com/minichord-el...
forum.pjrc.com/index.php?th...
www.pjrc.com/minichord-el...
forum.pjrc.com/index.php?th...
August 19, 2025 at 7:15 PM
minichord by Benjamin Poilve is a pocket size instrument used to build chord progressions, internally using Teensy 4.0.
www.pjrc.com/minichord-el...
forum.pjrc.com/index.php?th...
www.pjrc.com/minichord-el...
forum.pjrc.com/index.php?th...
Just want to share my excitement at finally finding a KVM switch that doesn't suck. No more attention-breaking 5-10 seconds of black screen when switching between my Mac and Linux machine.
This isn't sponsored or an ad, only me enjoying what has seemed impossible for so long.
This isn't sponsored or an ad, only me enjoying what has seemed impossible for so long.
August 18, 2025 at 12:06 AM
Just want to share my excitement at finally finding a KVM switch that doesn't suck. No more attention-breaking 5-10 seconds of black screen when switching between my Mac and Linux machine.
This isn't sponsored or an ad, only me enjoying what has seemed impossible for so long.
This isn't sponsored or an ad, only me enjoying what has seemed impossible for so long.
Nick Rehm's dRehmFlight VTOL project using Teensy and MPU6050 motion sensor is intended for teaching flight control and stabilization concepts.
www.pjrc.com/drehmflight-...
www.pjrc.com/drehmflight-...
August 6, 2025 at 1:38 AM
Nick Rehm's dRehmFlight VTOL project using Teensy and MPU6050 motion sensor is intended for teaching flight control and stabilization concepts.
www.pjrc.com/drehmflight-...
www.pjrc.com/drehmflight-...
Yang Zhang, Wolf Kienzle, Yanjun Ma, Shiu S. Ng, Hrvoje Benko, Chris Harrison used Teensy to help develop ActiTouch, robust touch detection for on-skin AR/VR.
www.pjrc.com/actitouch-vr...
www.pjrc.com/actitouch-vr...
July 31, 2025 at 5:46 PM
Yang Zhang, Wolf Kienzle, Yanjun Ma, Shiu S. Ng, Hrvoje Benko, Chris Harrison used Teensy to help develop ActiTouch, robust touch detection for on-skin AR/VR.
www.pjrc.com/actitouch-vr...
www.pjrc.com/actitouch-vr...
Adrian created this 2-key keyboard for a rhythm game. Two mechanical keys fit nicely above Teensy.
www.pjrc.com/two-key-keyb...
www.pjrc.com/two-key-keyb...
July 28, 2025 at 4:21 PM
Adrian created this 2-key keyboard for a rhythm game. Two mechanical keys fit nicely above Teensy.
www.pjrc.com/two-key-keyb...
www.pjrc.com/two-key-keyb...
Aaron Todd of One Hacker Band uses Teensy to make musical instruments play themselves!
www.pjrc.com/one-hacker-b...
www.youtube.com/watch?v=PQKq...
www.pjrc.com/one-hacker-b...
www.youtube.com/watch?v=PQKq...
July 23, 2025 at 11:12 PM
Aaron Todd of One Hacker Band uses Teensy to make musical instruments play themselves!
www.pjrc.com/one-hacker-b...
www.youtube.com/watch?v=PQKq...
www.pjrc.com/one-hacker-b...
www.youtube.com/watch?v=PQKq...
YouTuber James Bruton created a prosthetic arm which uses machine learning mimic his real arm based on the position and posture of other parts of his body.
www.pjrc.com/machine-lear...
www.youtube.com/watch?v=Ip83...
www.pjrc.com/machine-lear...
www.youtube.com/watch?v=Ip83...
July 10, 2025 at 7:44 PM
YouTuber James Bruton created a prosthetic arm which uses machine learning mimic his real arm based on the position and posture of other parts of his body.
www.pjrc.com/machine-lear...
www.youtube.com/watch?v=Ip83...
www.pjrc.com/machine-lear...
www.youtube.com/watch?v=Ip83...
Ben Glover’s MIDIHEX, an isomorphic MIDI controller, is powered by Teensy 4.1. It supports not only velocity sensing, but MIDI Polyphonic Expression and microtonal scales.
www.pjrc.com/midihex-harm...
www.pjrc.com/midihex-harm...
July 2, 2025 at 4:26 PM
Ben Glover’s MIDIHEX, an isomorphic MIDI controller, is powered by Teensy 4.1. It supports not only velocity sensing, but MIDI Polyphonic Expression and microtonal scales.
www.pjrc.com/midihex-harm...
www.pjrc.com/midihex-harm...
Wow, "ChatGPT Psychosis" wasn't on my 2025 bingo card! Really hope it's extremely rare, but sharing because anyone may have friends or relatives falling for AI-backed delusion and really in need of help.
futurism.com/commitment-j...
futurism.com/commitment-j...
People Are Being Involuntarily Committed, Jailed After Spiraling Into "ChatGPT Psychosis"
People experiencing "ChatGPT psychosis" are being involuntarily committed to mental hospitals and jailed following AI mental health crises.
futurism.com
June 29, 2025 at 9:23 AM
Wow, "ChatGPT Psychosis" wasn't on my 2025 bingo card! Really hope it's extremely rare, but sharing because anyone may have friends or relatives falling for AI-backed delusion and really in need of help.
futurism.com/commitment-j...
futurism.com/commitment-j...
Robert Xiao, Gierad Laput, Yang Zhang and Chris Harrison have used a Teensy to prototype on-touch contextual functionality for smart IoT appliances
www.pjrc.com/electromagne...
www.pjrc.com/electromagne...
June 24, 2025 at 3:00 PM
Robert Xiao, Gierad Laput, Yang Zhang and Chris Harrison have used a Teensy to prototype on-touch contextual functionality for smart IoT appliances
www.pjrc.com/electromagne...
www.pjrc.com/electromagne...
Getting excited for Teardown 2025 this weekend.
June 19, 2025 at 9:22 AM
Getting excited for Teardown 2025 this weekend.
Now that SparkFun is manufacturing Teensy (a good thing which will let me focus more on software), we're having a Leftover Teensy Stuff sale.
www.pjrc.com/store/leftov...
Half price Teensy with minor flaw + grab bag of random leftover stuff...
USA only shipping
www.pjrc.com/store/leftov...
Half price Teensy with minor flaw + grab bag of random leftover stuff...
USA only shipping
April 14, 2025 at 12:13 PM
Now that SparkFun is manufacturing Teensy (a good thing which will let me focus more on software), we're having a Leftover Teensy Stuff sale.
www.pjrc.com/store/leftov...
Half price Teensy with minor flaw + grab bag of random leftover stuff...
USA only shipping
www.pjrc.com/store/leftov...
Half price Teensy with minor flaw + grab bag of random leftover stuff...
USA only shipping
Next week PJRC will have a Leftover Teensy Stuff sale (now that SparkFun is manufacturing all Teensy boards).
Teensy 4.0 with pins soldered crooked (but fully functional) at half price will come with a free grab bag of other leftover stuff.
USA only shipping on this sale.
Teensy 4.0 with pins soldered crooked (but fully functional) at half price will come with a free grab bag of other leftover stuff.
USA only shipping on this sale.
April 9, 2025 at 8:55 PM
Next week PJRC will have a Leftover Teensy Stuff sale (now that SparkFun is manufacturing all Teensy boards).
Teensy 4.0 with pins soldered crooked (but fully functional) at half price will come with a free grab bag of other leftover stuff.
USA only shipping on this sale.
Teensy 4.0 with pins soldered crooked (but fully functional) at half price will come with a free grab bag of other leftover stuff.
USA only shipping on this sale.
PJRC is partnering with @sparkfun.bsky.social for manufacturing of all Teensy products.
We’re taking step with 2 main goals.
1: SparkFun has the manufacturing needed for Teensy's growth.
2: PJRC can renew focus on software & community.
pjrc.com/sparkfun-to-...
news.sparkfun.com/13308
We’re taking step with 2 main goals.
1: SparkFun has the manufacturing needed for Teensy's growth.
2: PJRC can renew focus on software & community.
pjrc.com/sparkfun-to-...
news.sparkfun.com/13308
SparkFun To Manufacture Teensy
pjrc.com
March 13, 2025 at 6:26 PM
PJRC is partnering with @sparkfun.bsky.social for manufacturing of all Teensy products.
We’re taking step with 2 main goals.
1: SparkFun has the manufacturing needed for Teensy's growth.
2: PJRC can renew focus on software & community.
pjrc.com/sparkfun-to-...
news.sparkfun.com/13308
We’re taking step with 2 main goals.
1: SparkFun has the manufacturing needed for Teensy's growth.
2: PJRC can renew focus on software & community.
pjrc.com/sparkfun-to-...
news.sparkfun.com/13308
If the stock markets crash Monday, will DEI be at fault?
February 3, 2025 at 2:26 AM
If the stock markets crash Monday, will DEI be at fault?