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Clear pinouts, practical projects, buying comparisons and hands-on guidance for ESP32, Arduino, Home Assistant and home servers.
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ESP32 for Matter, Thread and Zigbee
Best ESP32 for Home Assistant and ESPHome
BME280 vs BME680 vs BME688
Curated stories while awaiting new announcements
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From your first microcontroller to a fully connected home lab.
Start with these guides
Our hand-picked entry points for boards, wireless protocols and smart-home builds.
ESP32 Versions Compared: Which Should You Buy?
A clear starting point for choosing the right ESP32 family, radio and development board.
Read the guide →Best ESP32 for Home Assistant and ESPHome
Choose between C6, S3, C3 and C5 for everyday smart-home projects.
Read the guide →ESP32 for Matter, Thread and Zigbee
Compare low-power radios and find the right chip for a modern mesh network.
Read the guide →Build a home server that earns its place.
Practical buying advice and setup guides for backup storage, containers, Home Assistant and small servers — without enterprise complexity.
Explore NAS guides →Latest from the bench
Fresh tutorials and comparisons, updated automatically as new articles are published.
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ADS1115 Breakout Pinout, I²C Address Jumper, Schematic and ESP32 Arduino Example
ADS1115 board hardware reference with pinout, rear address solder jumper, A+ and A− pins, ESP32 wiring, safe voltage…
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ESPHome 2026.10 adds compressed OTA uploads and native ESP8266 builds
ESPHome 2026.10.0 adds compressed OTA uploads for ESP32 and makes its native ESP8266 toolchain the default, alongside around…
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MCP23017 Breakout Pinout, I²C Address Jumpers, Interrupts and ESP32 Wiring
MCP23017 hardware reference: breakout pinout, 0x20–0x27 solder address bridges, 16 GPIO mappings, IA/IB interrupts, schematic, ESP32 wiring and…
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PCF8575 Breakout Pinout, I²C Address Jumpers, Schematic and ESP32 Wiring
PCF8575 16-bit GPIO expander hardware reference: breakout pinout, I²C addresses 0x20–0x27, A0/A1/A2 solder jumpers, schematic, ESP32 wiring and…
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PCF8574 / PCF8574A Pinout, I²C Address Jumpers, Schematic and ESP32 Wiring
PCF8574 and PCF8574A pinout, address-jumper table (0x20–0x27 / 0x38–0x3F), breakout schematic, ESP32 I²C wiring, and tested-against-API Adafruit Arduino…
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Fake STM32 Blue Pill Boards: How to Identify Clones and Avoid Problems (2026)
A Blue Pill that says “STM32F103C8T6” is not automatically built with an STMicroelectronics chip. Some inexpensive boards use…
Projects, news & useful references
More ways to explore the electronics and open-hardware ecosystem.
ESP32 Bluetooth Proxy for Home Assistant
Turn a simple ESP32 into a practical Bluetooth bridge for your smart home.
Read project →News, new chips and open-source hardware
Follow microcontroller announcements, software releases and emerging maker platforms.
Browse news →New to ESP32? Begin here.
Pick a board, install your tools and take the first step with a simple project.
