Ccircuitrocks·2d agoBuild a Subscription-Free ESP32 Smart Thermostat for Your HomeSubscription-Free ESP32 Smart Thermostat: An ESP32, a temp sensor, an OLED and a relay board replace a subscription thermostat.3 min read·circuitrocks.hashnode.dev
Ccircuitrocks·6d agoOlimex UEXT-CH390 Adds Wired Ethernet to ESP32 and PicoOlimex UEXT-CH390 Adds Wired: Olimex's EUR 4.95 UEXT-CH390 brings 100 Mbit wired Ethernet to RP2040 and ESP32 boards, with ESPHome support.3 min read·circuitrocks.hashnode.dev
Ccircuitrocks·Nov 4ESP32-CAM Turns a Cheap Blood Pressure Monitor SmartESP32-CAM Turns Cheap Blood: Tomasz Burzy gave a secondhand blood pressure monitor Wi-Fi by pointing an ESP32-CAM at its seven-segment display.2 min read·circuitrocks.hashnode.dev
Ccircuitrocks·Nov 3Analog Redial: ESP32-C6 Brings Rotary Phones Back to LifeAnalog Redial ESP32-C6 Brings: An ESP32-C6, an audio codec, and a SLIC chip let old rotary phones call each other, run an answering machine, and even ring…2 min read·circuitrocks.hashnode.dev
DDisplayEngineer·Oct 22Why your ST7701S screen goes black after a reboot in ESPHomeESPHome 2026.10.0 adds a 50 ms reset delay for ST7701S, but some boards still need a real reset pin, and the old st7701s platform never drives one.7 min read·displayengineer.hashnode.dev
NNeil Fernandez·Oct 19Home Assistant + Vibe Coding: From AI Image to Working CardHow I used Codex and an AI-generated mockup to build a custom Home Assistant pool card, add a visual editor, and share it on GitHub.5 min read·blog.neilfernandez.com
DDisplayEngineer·Oct 19ESPHome Drops ili9xxx, st7789v and st7735 in 2027.5.0: Migrating SPI TFTs to mipi_spiOption map, before/after YAML and a symptom table for ILI9341, ST7789V, ST7735, ILI9488 and ST7796S panels10 min read·displayengineer.hashnode.dev
Ccircuitrocks·Oct 13Turn Escape Room Puzzles into Home Assistant Devices with ESP32Two open source Arduino libraries turn escape room puzzles into Home Assistant devices over MQTT. Here's the parts list and the I2C wiring to copy.2 min read·circuitrocks.hashnode.dev
Ccircuitrocks·Oct 3LocalDot: Give an Echo Dot a Local Home Assistant BrainLocalDot Give Echo Dot: AAElectronics' LocalDot swaps an Echo Dot's mainboard for an ESP32-P4 and ESP32-S3 that talk only to Home Assistant.2 min read·circuitrocks.hashnode.dev
AAPITube News API·Sep 30Headlines in Home Assistant with a REST sensor, and how often to pollHome Assistant news feed: one rest: sensor, a markdown card, an 8 am TTS.12 min read·apitube.hashnode.dev
