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the PA scratch offs", "url": "https://andykong.org/blog/palotteryexpectedvalue/", "published_at": "2021-02-04T05:00:00+00:00" }, { "id": "01a08729-9540-7166-a9a6-c8468b20b9d2", "title": "Detecting instantaneous frequency is hard", "url": "https://andykong.org/blog/IFproblems/", "published_at": "2021-01-31T05:00:00+00:00" }, { "id": "01a08729-9540-7166-a9a6-c8468b949c69", "title": "Touch Reactive LEDs", "url": "https://andykong.org/blog/touchreactiveLEDs/", "published_at": "2021-01-29T05:00:00+00:00" }, { "id": "01a08729-9540-7166-a9a6-c8468c60c65c", "title": "Oversampling vs. Averaging for Noise Reduction", "url": "https://andykong.org/blog/oversamplingvsaveraging/", "published_at": "2021-01-24T05:00:00+00:00" }, { "id": "01a08729-9540-7166-a9a6-c8468cdb9ab3", "title": "Comparing the interface speed of a thermostat to a keyboard", "url": "https://andykong.org/blog/interfacespeeds/", "published_at": "2021-01-21T05:00:00+00:00" }, { "id": "01a08729-9540-7166-a9a6-c8468d25d2f9", "title": "Trying out various peak detection techniques for the SSVEP", "url": "https://andykong.org/blog/ssveppeakdetect/", "published_at": "2021-01-18T05:00:00+00:00" }, { "id": "01a08729-9540-7166-a9a6-c8468d282b3b", "title": "EEG fails in the prescence of household EMI", "url": "https://andykong.org/blog/EMIvsBCI/", "published_at": "2021-01-17T05:00:00+00:00" }, { "id": "01a08729-9540-7166-a9a6-c8468ddd5fe4", "title": "The first generation of handheld barcode scanners had laser tubes", "url": "https://andykong.org/blog/barcodehistory/", "published_at": "2021-01-14T05:00:00+00:00" }, { "id": "01a08729-9540-7166-a9a6-c8468e522988", "title": "My new favorite EEG technique: Phase-rectified signal averaging", "url": "https://andykong.org/blog/PRSAhighlight/", "published_at": "2021-01-13T05:00:00+00:00" }, { "id": "01a08729-9540-7166-a9a6-c8468e84c26d", "title": "Preliminary 5W LED Tests", "url": "https://andykong.org/blog/5WLEDprelimtests/", "published_at": "2021-01-06T05:00:00+00:00" }, { "id": "01a08729-9540-7166-a9a6-c8468f08da7d", "title": "Fresnel Lens", "url": "https://andykong.org/blog/fresnellens/", "published_at": "2021-01-05T05:00:00+00:00" }, { "id": "01a08729-9540-7166-a9a6-c8468faaf714", "title": "Hello World for Brain-Computer Interfaces", "url": "https://andykong.org/blog/bcieyeclosedetection/", "published_at": "2020-12-31T05:00:00+00:00" }, { "id": "01a08729-9540-7166-a9a6-c846905530ed", "title": "Working with BrainFlow pt. 1", "url": "https://andykong.org/blog/workingwithbrainflow1/", "published_at": "2020-12-30T05:00:00+00:00" }, { "id": "01a08729-9540-7166-a9a6-c84690681259", "title": "Testing out some high power LEDs", "url": "https://andykong.org/blog/LEDs3W6piece/", "published_at": "2020-12-28T05:00:00+00:00" }, { "id": "01a08729-9540-7166-a9a6-c84690c80f9c", "title": "Easy Button Hack Pt. 1", "url": "https://andykong.org/blog/easybutton1/", "published_at": "2020-12-24T05:00:00+00:00" }, { "id": "01a08729-9540-7166-a9a6-c846912080fe", "title": "Improving noisy EEG data through single channel averaging", "url": "https://andykong.org/blog/eegsinglechannelavg/", "published_at": "2020-12-18T05:00:00+00:00" }, { "id": "01a08729-9540-7166-a9a6-c84691f81d02", "title": "Coin vibration motors arrived!", "url": "https://andykong.org/blog/coinvibrationmotor/", "published_at": "2020-12-14T05:00:00+00:00" }, { "id": "01a08729-9540-7166-a9a6-c84692d09d7d", "title": "Playing sounds with an Arduino, speaker, and no amplifier", "url": "https://andykong.org/blog/arduinodirect2wav/", "published_at": "2020-12-13T05:00:00+00:00" }, { "id": "01a08729-9540-7166-a9a6-c84693c48711", "title": "Analog Electronics Basics: Scaling Voltage Rails", "url": "https://andykong.org/blog/analogscalingvoltages/", "published_at": "2020-12-08T05:00:00+00:00" }, { "id": "01a08729-9540-7166-a9a6-c84694af627e", "title": "Remote Photoplethysmography (PPG) Tutorial", "url": "https://andykong.org/blog/PPG_tutorial/", "published_at": "2020-12-07T05:00:00+00:00" }, { "id": "01a08729-9540-7166-a9a6-c8469549da32", "title": "Exploring USB-A breakout cables", "url": "https://andykong.org/blog/USBA_exploration/", "published_at": "2020-12-04T05:00:00+00:00" } ] posts Claim your blog

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2026

Fast automated mobile E2E testing — the unwritten manual original ↗

13 May 2026

Using flex PCB as electrode mount original ↗

3 Feb 2026

Teardown of the Urbanista Los Angeles headphones original ↗

1 Feb 2026

Teardown of the Urbanista Los Angeles headphones original ↗

1 Feb 2026

2025

First lessons from ordering CNC parts from China original ↗

4 Dec 2025

Running QUCS Studio (uSimmics) on a Mac original ↗

31 May 2025

Bringing up a custom RP2040 board original ↗

21 May 2025

Free custom email domain through Gmail original ↗

16 May 2025

2024

Let the foot slip original ↗

30 Dec 2024

I've been thinking about conviction original ↗

26 Oct 2024

Electronics Teardown: Stelo CGM original ↗

6 Oct 2024

Electronics Teardown: Stelo CGM original ↗

6 Oct 2024

Solar energy harvesting original ↗

25 Aug 2024

Edge Esmerelda Experience original ↗

25 Jun 2024

MonoChrome: In Defense Of Using One Chrome Window At A Time original ↗

12 Jun 2024

Practical Quantified Self Data Analysis, Pt. 1 original ↗

7 May 2024

Practical Quantified Self Data Analysis, Pt. 1 original ↗

7 May 2024

Different ways to black-out holograms original ↗

28 Apr 2024

How To Set ATtiny Fuses (with Arduino as ISP)original ↗

23 Apr 2024

Immersive Space Workarounds In The Vision Pro original ↗

21 Apr 2024

A Layman's Guide To The ICNIRP Guidelines On Limiting Exposure To Electromagnetic Fields (100kHz-300GHz)original ↗

16 Apr 2024

Most-scanned bulletin boards at CMU original ↗

15 Apr 2024

Is Morse Code Letter-Frequency Optimal?original ↗

12 Apr 2024

Power profiling a thermal printer camera original ↗

7 Apr 2024

Apple Vision Pro Hackathon: A Retrospective original ↗

13 Mar 2024

Testing out the BPW34 original ↗

4 Mar 2024

My Vitalia Experience original ↗

23 Feb 2024

Timezone correcting Fitbit sleep data using Google Timeline original ↗

12 Feb 2024

A computer scientist's guide to I2C original ↗

5 Feb 2024

Programming an ATtiny85V using an Arduino original ↗

2 Feb 2024

My Quantified-Self Data Stack original ↗

26 Jan 2024

Fitbit timestamps cannot be trusted original ↗

15 Jan 2024

Bionic reading doesn't help you read faster original ↗

11 Jan 2024

How sleep deprivation affects my cognition original ↗

10 Jan 2024

Reading speed comparison on paper vs screens original ↗

9 Jan 2024

Shipping from Europe to America from $2.30/kg original ↗

1 Jan 2024

2023

Shot comparisons between an iPhone and digital camera original ↗

23 Dec 2023

Teardown of the Freestyle Libre 2 Continuous Glucose Monitor original ↗

18 Dec 2023

Timezone correcting Fitbit sleep data original ↗

30 Nov 2023

Breakdown of my most used Alfred Workflows original ↗

26 Nov 2023

Breakdown of my most used Alfred Workflows original ↗

26 Nov 2023

Average clip duration in MILF Manor original ↗

11 Jun 2023

iCloud Cleanup original ↗

6 Jun 2023

How to stop noisy NeoPixels original ↗

31 May 2023

Calendar Memories original ↗

9 Apr 2023

Infoglobe Tutorial Pt. 3 — Software original ↗

9 Apr 2023

Infoglobe Tutorial Pt. 3 — Software original ↗

9 Apr 2023

2022

Infoglobe Tutorial Pt. 2 — Hardware Integration original ↗

15 Oct 2022

Making clear gelatin from porcine sheets original ↗

4 Oct 2022

Infoglobe Tutorial Pt 1 — Hardware Prototyping original ↗

1 Oct 2022

Infoglobe Tutorial Pt 1 — Hardware Prototyping original ↗

1 Oct 2022

Setting up Electric Tables v0.2 original ↗

22 Apr 2022

Supercapacitor To Lithium Battery Converter original ↗

14 Feb 2022

Replacing Timing.app original ↗

9 Jan 2022

Learning AppleScript original ↗

5 Jan 2022

Examples from the Taxonomy of Automation original ↗

3 Jan 2022

2021

How Good Are Stock Watchlists Anyway?original ↗

25 Dec 2021

How Trees Fall Apart original ↗

13 Nov 2021

Real Time Fourier Transform Using Shaped Aperture original ↗

20 Sept 2021

Measuring 150 Amps With A DIY Shunt original ↗

6 Sept 2021

Measuring 150 Amps With A DIY Shunt original ↗

6 Sept 2021

Fast-charging capacitors original ↗

9 Aug 2021

Everything I Know About PEDOT:PSS original ↗

5 Aug 2021

Sugar-Metering My First Watermelon original ↗

27 Jul 2021

How to get access to your Fitbit data (API tutorial)original ↗

26 Jul 2021

Comparing The Sugar Percentage Of Peach Juice vs. Sugary Drinks original ↗

23 Jul 2021

Paper Delivery: Sinusoidal Skin Displacements original ↗

22 Jun 2021

Finding My Pacinian Corpuscles in vivo original ↗

16 Jun 2021

Recreating the Traxion psychophysics effect original ↗

2 Jun 2021

MacGyvering Electronics From Merch original ↗

31 May 2021

Stimulating the Merkel Discs: selective nerve stimulation with a TENS unit original ↗

23 May 2021

Body Channel Communication Tutorial Pt. 3 original ↗

15 May 2021

Outro to Intro to Woodworking original ↗

29 Apr 2021

Body Channel Communication Tutorial Pt. 2 original ↗

27 Apr 2021

Body Channel Communication Tutorial Pt. 1 original ↗

17 Apr 2021

Intro to Intro to Woodworking original ↗

24 Mar 2021

MPR121 Touch Sensing Across Barriers original ↗

13 Mar 2021

5050 LED Strip Teardown original ↗

20 Feb 2021

Blink Detection Using Infrared Reflective Sensors original ↗

12 Feb 2021

Calculating the expected value of the PA scratch offs original ↗

4 Feb 2021

Detecting instantaneous frequency is hard original ↗

31 Jan 2021

Touch Reactive LEDs original ↗

29 Jan 2021

Oversampling vs. Averaging for Noise Reduction original ↗

24 Jan 2021

Comparing the interface speed of a thermostat to a keyboard original ↗

21 Jan 2021

Trying out various peak detection techniques for the SSVEP original ↗

18 Jan 2021

EEG fails in the prescence of household EMI original ↗

17 Jan 2021

The first generation of handheld barcode scanners had laser tubes original ↗

14 Jan 2021

My new favorite EEG technique: Phase-rectified signal averaging original ↗

13 Jan 2021

Preliminary 5W LED Tests original ↗

6 Jan 2021

Fresnel Lens original ↗

5 Jan 2021

2020

Hello World for Brain-Computer Interfaces original ↗

31 Dec 2020

Working with BrainFlow pt. 1 original ↗

30 Dec 2020

Testing out some high power LEDs original ↗

28 Dec 2020

Easy Button Hack Pt. 1 original ↗

24 Dec 2020

Improving noisy EEG data through single channel averaging original ↗

18 Dec 2020

Coin vibration motors arrived!original ↗

14 Dec 2020

Playing sounds with an Arduino, speaker, and no amplifier original ↗

13 Dec 2020

Analog Electronics Basics: Scaling Voltage Rails original ↗

8 Dec 2020

Remote Photoplethysmography (PPG) Tutorial original ↗

7 Dec 2020

Exploring USB-A breakout cables original ↗

4 Dec 2020