코딩나우(하늘아래)

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south, korea Joined on Jun 2, 2026 https://www.coding-now.com/

코딩나우(하늘아래)

Sep 30

WiFi QR codes: the five escapes, the all-hex SSID trap, and what ECC level H costs you

#python #webdev #opencv #tutorial

6 min read

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코딩나우(하늘아래)

Sep 30

That JSON error quotes what the server actually sent - and V8 cuts it at exactly 20 characters

#javascript #webdev #node #debugging

5 min read

코딩나우(하늘아래)

Sep 29

Windows tar reads RAR and 7z - and silently writes a tar when you ask it for a RAR

#windows #powershell #devops #tutorial

3 min read

코딩나우(하늘아래)

Sep 29

Windows encodes M4A and MP3 at the same bitrate, so the file sizes land 0.6% apart

#windows #powershell #audio #webdev

4 min read

코딩나우(하늘아래)

Sep 28

Resize, format, quality: I measured all three image-size levers and one wins by 10x

#webdev #python #performance #tutorial

4 min read

코딩나우(하늘아래)

Sep 23

The browser has no MP3 encoder, so a client-side audio trimmer writes WAV by hand

#javascript #webdev #audio #tutorial

3 min read

코딩나우(하늘아래)

Sep 23

Windows can decode (and encode) HEIC without ImageMagick - and the browser ships no decoder

#windows #powershell #python #tutorial

4 min read

코딩나우(하늘아래)

Sep 23

Converting WebP to JPG on Windows with no dependencies (and the alpha channel gotcha)

#windows #powershell #python #tutorial

3 min read

코딩나우(하늘아래)

Sep 22

Transparent PNGs: the 3 background-removal algorithms, why JPG can't do it, and the color-key gotcha

#python #javascript #webdev #tutorial

4 min read

코딩나우(하늘아래)

Sep 21

No HyperTerminal on Windows 10/11? Free serial terminals and the 4 settings that matter

#windows #embedded #arduino #tutorial

4 min read

코딩나우(하늘아래)

Sep 21

Text to speech on Windows: the built-in voices, edge-tts, and why subtitle dubbing never fits

#windows #powershell #python #tutorial

3 min read

코딩나우(하늘아래)

Sep 18

Windows Task Scheduler: why your scheduled task doesn't run (and what 0x41303 means)

#windows #powershell #productivity #automation

3 min read

코딩나우(하늘아래)

Sep 17

ESP32 upload errors decoded: 'Failed to connect', 'Wrong boot mode detected' and friends

#esp32 #arduino #embedded #iot

3 min read

코딩나우(하늘아래)

Sep 17

Why your ESP32 resets every time you open the serial monitor (and how to stop it)

#esp32 #arduino #iot #embedded

4 min read

코딩나우(하늘아래)

Sep 17

JSON.parse errors decoded: what 'Unexpected token <' and friends actually mean

#javascript #webdev #python #beginners

4 min read

코딩나우(하늘아래)

Sep 16

Modbus RTU vs TCP: the same command in two different envelopes

#embedded #python #iot #beginners

4 min read

코딩나우(하늘아래)

Sep 16

Decoding Keil µVision build errors: what each message actually means

#embedded #c #arm #beginners

4 min read

코딩나우(하늘아래)

Jun 12

I built a portable serial terminal for ESP32/Arduino in Rust — because my board kept resetting

#showdev #rust #iot #arduino

2 min read

코딩나우(하늘아래)

Jun 2

5 free dev tools I built — no signup, no ads (most run entirely in your browser)

#showdev #webdev #javascript #productivity

2 min read

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코딩나우(하늘아래)

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Writing Debut

WiFi QR codes: the five escapes, the all-hex SSID trap, and what ECC level H costs you

Want to connect with 코딩나우(하늘아래)?

That JSON error quotes what the server actually sent - and V8 cuts it at exactly 20 characters

Windows tar reads RAR and 7z - and silently writes a tar when you ask it for a RAR

Windows encodes M4A and MP3 at the same bitrate, so the file sizes land 0.6% apart

Resize, format, quality: I measured all three image-size levers and one wins by 10x

The browser has no MP3 encoder, so a client-side audio trimmer writes WAV by hand

Windows can decode (and encode) HEIC without ImageMagick - and the browser ships no decoder

Converting WebP to JPG on Windows with no dependencies (and the alpha channel gotcha)

Transparent PNGs: the 3 background-removal algorithms, why JPG can't do it, and the color-key gotcha

No HyperTerminal on Windows 10/11? Free serial terminals and the 4 settings that matter

Text to speech on Windows: the built-in voices, edge-tts, and why subtitle dubbing never fits

Windows Task Scheduler: why your scheduled task doesn't run (and what 0x41303 means)

ESP32 upload errors decoded: 'Failed to connect', 'Wrong boot mode detected' and friends

Why your ESP32 resets every time you open the serial monitor (and how to stop it)

JSON.parse errors decoded: what 'Unexpected token <' and friends actually mean

Modbus RTU vs TCP: the same command in two different envelopes

Decoding Keil µVision build errors: what each message actually means

I built a portable serial terminal for ESP32/Arduino in Rust — because my board kept resetting

5 free dev tools I built — no signup, no ads (most run entirely in your browser)