Project #15: Environment – Crowtail Rotary Angle Sensor – Mk23

This small project can be interesting for beginners in electronics or robotics.

These miniature metal detectors cannot boast of any great sensitivity, but it would still be good to make them for any enthusiast in this field, especially because of the opportunity to study in detail the way such devices work.

eBUS Adapter Stick C6 is a reduced size version of previous highly demanded eBUS Adapter Shields and provides an interface to a 2-wire eBUS with galvanic isolation for enabling communication with an eBUS enabled heating, ventilation or solar system. With a size of 42 x 16 mm it is way smaller than the previous Shield versions, but still supports an USR-ES1 module being plugged onto it for having Ethernet access. Even better, with the upcoming firmware version for the ESP32-C6, it automatically scans the heating components and makes all data available via MQTT to e.g. Home Assistant with auto discovery of entities.

Take a temp sensor and build it!

This intriguing but festive Christmas-themed PCB gift card provides a feature-packed home automation interface thanks to its complementary mobile application (Android).

A highly configurable, low-power current probe.

Project #29 - DFRobot - Soil Moisture Sensor - Mk28

These candles flicker like a real candles and can be activated with an actual flame

Project #30 - UNIHIKER - MEMS CH4 - Mk06

Elecrow 3.5" HMI ESP32 TFT using a Dallas DS18B20 to easily get temp data displayed upon the TFT.

A circuit that suits for cold areas, to prevent the frost.

This device is better than the similar devices made with an Arduino microcontroller board thanks to the stronger microprocessor and the well-made Windows software.

Project #15: Environment – DHT11 – Mk24

This is an old circuit built with analog components.

Project #30 - UNIHIKER - MEMS - Mk07