Tạo chatbot RAG chính xác cao và chi phí thấp với n8n + PGVector + Pinecone, sử dụng cache ngữ nghĩa, mở rộng ngữ cảnh & giảm chi phí token lên 95%. Mã nguồn & kiến trúc linh hoạt hỗ trợ tài liệu pháp lý/lớp học. #AI #Chatbot #Vie #TechInnovation #RAG #LowCostTech #HighAccuracy #PGVector #Pinecone

https://www.reddit.com/r/LocalLLaMA/comments/1pk9jwg/project_built_a_highaccuracy_lowcost_rag_chatbot/

Battering RAM – Low-Cost Interposer Attacks on Confidential Computing

https://batteringram.eu/

#HackerNews #BatteringRAM #ConfidentialComputing #CyberSecurity #InterposerAttacks #LowCostTech

Battering RAM

Battering RAM

🚀 Hands-on with the KT6368A Bluetooth Chip (SOP8, only $1.06 USD!)

Just tested the ultra-low-cost KT6368A, a dual-mode Bluetooth 5.1 chip in a tiny SOP8 package.

Despite its price, it's shockingly easy to use:
🔹 UART-based, supports AT commands
🔹 BLE or SPP (pick one at a time)
🔹 Minimal circuit – just power, crystal, and antenna
🔹 No need for complicated peripherals

#Bluetooth #IoT #BLE #EmbeddedSystems #LowCostTech #MakerFriendly #BMS #TPMS

Paper about an alternative paradigm to photoelectrochemical (PEC) water splitting: the “particle suspension reactor (PSR), forgoes the rigid design in favour of individual PEC particles suspended in solution, a potentially low-cost option compared with planar systems”

“Water splitting with silicon p–i–n superlattices suspended in solution”

#hydrogen #lowcosttech #watersplitting

https://www.nature.com/articles/s41586-022-05549-5

Behind paywall, but 3 data sets and 40 references available.

Water splitting with silicon p–i–n superlattices suspended in solution - Nature

The simplicity of particle suspension reactors and the precise synthetic control afforded by silicon nanowire growth are used to develop a system that can produce hydrogen fuel by splitting water with sunlight.

Nature

This is so frustrating. The cheapest devices often come out of the factory with outdated versions of @Android, which means your phone doesn't have to be old to be at risk.

#LowCostTech https://nitter.net/WhichUK/status/1235878609283362817

Only a few hours left to join us in telling @google: privacy shouldn't be a luxury

http://privacyinternational.org/petition

#LowCostTech

People shouldn't have to trade their privacy and security for access to a smartphone.

Also available in: Español/Spanish and Français/French --- **Do you think someone who buys a cheap smartphone deserves less privacy than someone who can afford the latest iPhone? No? Then join us in pressuring Google to ensure every Android phone protects their users equally.** Dear Google, People shouldn't have to trade their privacy and security for access to a smartphone. The changes we believe are needed most urgently are as follows: * Individuals should be able to permanently uninstall pre-installed apps on their phones.

Today is your last day to join us and tell @google it's time to action on exploitative pre-installed apps!

Sign the petition: http://privacyinternational.org/petition

#LowCostTech

People shouldn't have to trade their privacy and security for access to a smartphone.

Also available in: Español/Spanish and Français/French --- **Do you think someone who buys a cheap smartphone deserves less privacy than someone who can afford the latest iPhone? No? Then join us in pressuring Google to ensure every Android phone protects their users equally.** Dear Google, People shouldn't have to trade their privacy and security for access to a smartphone. The changes we believe are needed most urgently are as follows: * Individuals should be able to permanently uninstall pre-installed apps on their phones.

Android Partners - who use the Android trademark and branding - are manufacturing devices that contains bloatware, which can leave users vulnerable to their data being collected, shared and exposed without their knowledge or consent.

#LowCostTech
https://privacyintyqcroe.onion/advocacy/3320/open-letter-google

Join thousands of people telling @google that privacy shouldn't be a luxury

#LowCostTech

http://privacyinternational.org/petition

People shouldn't have to trade their privacy and security for access to a smartphone.

Also available in: Español/Spanish and Français/French --- **Do you think someone who buys a cheap smartphone deserves less privacy than someone who can afford the latest iPhone? No? Then join us in pressuring Google to ensure every Android phone protects their users equally.** Dear Google, People shouldn't have to trade their privacy and security for access to a smartphone. The changes we believe are needed most urgently are as follows: * Individuals should be able to permanently uninstall pre-installed apps on their phones.

Android Partners are manufacturing devices that contain bloatware that cannot be deleted, which can leave users vulnerable to their data being collected, shared and exposed without their knowledge or consent.

#LowCostTech

https://privacyinternational.org/advocacy/3320/open-letter-google

An open letter to Google

Privacy International and over 50 other organisations have submitted a letter to Alphabet Inc. CEO Sundar Pichai asking Google to take action against exploitative pre-installed software on Android devices. You can find the letter below. Add your voice to this campaign by signing our petition if you believe that its time Google stopped enabling exploitation. Note: This letter is also available in French and Spanish