Loading feed…
Hackaday0 Hot0 comments3 min read
Reading Data From An Unwilling Blood Pressure Monitor
Tomasz Burzy modified a basic blood pressure monitor to send its readings over WiFi. He first tried tapping the PCB with a logic analyzer, pulling raw pressure sensor data, but couldn't replicate the device's proprietary calculation. A single integrated chip handled both processing and display driving, blocking any interception of the final value. He ended up reading the LCD optically with a camera, using an ESP32-CAM to check fixed coordinates for lit segments instead of running full computer vision.
Source: https://hackaday.com/2026/11/04/reading-data-from-an-unwilling-blood-pressure-monitor. 8 Sync News only summarizes and links out; content copyright belongs to the authors and original sources.
8 Sync ecosystem
One account, the whole ecosystem
Read the news here, practice coding, follow structured courses and train for IELTS on our sibling products — all connected through one 8 Sync account.
8syncdev.com
8syncdev.comThe ecosystem home: product overviews, blog and full pricing.
ExploreCourses
course.8syncdev.comLearn along a clear roadmap: videos, auto-graded quizzes, certificates and mentors who ship for a living.
View the roadmapCoding practice
coding.8syncdev.com1,000 DSA problems in Vietnamese, auto-graded across 7 languages — many FREE, right in your browser.
Practice for freeIELTS
ielts.8syncdev.comAI grading for all four IELTS skills with detailed rubric feedback.
Try it freeZUS — AI IDE
zus.8syncdev.comA 22 MB AI IDE for Vietnamese devs.
Download freemind0
mind0.8syncdev.comOrganizational memory for AI agents.
ExploreAcoLeads
home-acoleads.8syncdev.comAI that staffs your Fanpage and qualifies leads for you.
Try itRecommended for you
Hacker News1 Hot5 min
Quasi-Logarithmic Kitchen Timer
Like some of you, we have several kitchen appliances with integrated digital timers.
CNX Software1 Hot4 min
SparkFun IoT RedBoard ESP32-P4 – Arduino UNO-like ESP32-P4 v3.x development boards with WiFi 6 or PoE options
SparkFun introduced two new development boards called IoT RedBoard, both based on the ESP32-P4 v3.x (ESP32-P4X) and compatible with the Arduino UNO R3
Bram.us347 Hot1 minAI
GTA.js, a reimplementation of the 1997 Grand Theft Auto engine in JavaScript and WebGL
Dự án GTA.js tái tạo lại engine của game Grand Theft Auto năm 1997 bằng JavaScript và WebGL, có thể chơi tại gtajs.wtf. Đây là bản reimplement chứ không phải emulator, nên một số vật lý và animation khác với bản gốc, nhưng engine nhiệm vụ chính xác dựa trên tài liệu mtd.doc. Tác giả sử dụng Gemini AI để triển khai hầu hết các tính năng, tham khảo tài liệu mở, ghi chú cộng đồng và trí nhớ cá nhân về game. Hiện tại game đã chơi được nhưng cảnh sát (cops) vẫn chưa được implement.
Lập trình viên nên đọc bài này để khám phá cách tái tạo lại engine game cổ bằng JavaScript và WebGL từ con số không.
Hacker News1 Hot31 min
Finding Xanadu: Inside a JRPG classic translation 15 years in the making
Plus this oversized issue features interviews for two more human-made fan translations that prove the world hasn't fully gone to slop.
Noted3 Hot4 min
Someone Turned a Raspberry Pi Game Boy Into a DIY Cyberdeck
A maker transforms a Raspberry Pi gaming handheld into a DIY cyberdeck with GPS, Wi-Fi, a camera, and an ESP32. See the community build.
XDA Developers1 Hot2 min
You, too, can build this cute ESP32 internet radio controllable with just a dial
All of your fave tunes, all of the time.
Hacker News12 Hot6 min
Nibnib: Image compression with extreme decompression speed
Image compression at 4bpp with extreme decompression speed - raphlinus/nibnib
Hacker News1 Hot3 min
The $8 Linux Computer (2022)
An $8 Ox64 RISC-V single-board computer can run full Linux, not a stripped-down MMU-less kernel. It has three different RISC-V cores, but ethernet, wifi and SD card don't work yet. Flashing it is painful: it must be programmed over UART, not USB, and DevCube crashes on Wayland so you need Xorg. A CH340G USB-UART dongle failed the handshake, so the author used an RP2040 (Adafruit KB2040) running picoprobe as a serial bridge, then had to modify bflb-mcu-tool's uart interface file to strip DTR/RTS handling before it would flash the M0 core.
Comments
Loading comments…