Computing

微信机器人功能升级：群标签云统计、个人发言分析、活跃度可视化，并接入ElasticSearch和Kibana实现实时监控，算法从TF升级到TF-IDF。

探讨聊天机器人的核心价值：利用聊天记录做跨群转发、主题归并、脉络梳理和统计分析，让碎片化信息变得有组织，提供比单纯推送更独特的价值。

Build a Raspberry Pi-based air quality monitoring system with gas and dust sensors, plus a DIY air purifier using a box fan and MERV 13 filter.

Using a FLIR One thermal camera to identify home energy leaks: window drafts, heater inefficiencies, and door gaps. Practical DIY approach to thermal debugging.

The IFTTT delay API now supports passing extra POST parameters (Value1, Value2, Value3), enabling more complex automation recipes like delayed blog cross-posting and smart home scene scheduling.

智能家居进阶：加入智能温控、August门锁、iBeacon定位和Amazon Echo，探索从遥控到自动化再到智能化的发展路径，IFTTT作为统一控制中枢。

A simple web service to add delays to IFTTT recipes: trigger a Maker/Webhook URL after a specified time, enabling scenarios like "dim lights now, turn off after 15 minutes" for smart home automation.

Amazon Echo作为智能家居中枢的体验：免唤醒词触发、远场麦克风拾音、与IFTTT联动控制窗帘灯光门锁等设备，语音控制比手机App和Siri更便捷自然。

从睡眠监测、智能闹钟、窗帘控制到安防监控的全套智能家居改造：利用Sleep Cycle、Hue、Wemo、IFTTT等工具打造自动化生活，以及树莓派DIY遥控窗帘。

Simple web system for sharing EC2 access while the bill payer maintains control—team members can start instances via web interface with authentication.