A project for automation, hobby and also learning.

Project #15: Environment – RTC – Mk26

Minimalistic board that allows you to quickly and easily utilize a silicon photomultiplier (SiPM) within your other projects. Supports a range of input voltages, has a digital (TTL) pulse output for the registered counts and a direct output for the SiPM pulses for easy expansion.

This guide describes how to build the XIAO METER demo board, designed to easily test a wide range of sensors using the XIAO SAMD21 by Seeed Studio, the smallest member of the Seeeduino family. The module measures only 20×17.5×3.5mm, and features a Cortex-M0 microcontroller, 11 I/O pins, and supports UART, I2C, and SPI communication. It is fully compatible with the Arduino IDE.

Project #30 - UNIHIKER - MEMS - Mk07

Project #30 - UNIHIKER - MEMS CH4 - Mk06

This is a modern digital interpretation of a traditional barograph that displays real-time atmospheric pressure trends over a 24-hour period using a high-precision BME280 sensor and ESP32 microcontroller.

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

Project #15: Environment – Crowtail Moisture Sensor – Mk22

A cute tiny infrared thermometer with -70 to 380 °C temperature range

A portable, GPS-enabled device to measure river water quality at multiple city locations, storing data for later mapping and analysis, built with low-cost sensors and an ESP32 board.

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

This is a small (17.9 mm x 10.3 mm) breakout board for PixArt's PAA3905 optical flow sensor. It provides X-Y velocity at 126 Hz via Optical Flow and 35 x 35 pixel video camera at 18 Hz. There is a well-commented Arduino sketch showing how to use the device for navigation and frame grabbing. The frame grab rate is significantly improved over its predecessor, making for a practical low-resolution still imaging and video camera capability. Power usage is a modest 3.5 mA and the sensor can move in and out of shutdown mode quickly allowing flexible power management. The light level adjustment is automatic (although can still be done manually), streamlining sensor management. The sensor is smaller than its predecessors, with fewer pins making design and assembly easier. Light level sensitivity extends down to 5 lux. The frame grab occurs at a crisp ~15 Hz (56 milliseconds to complete), allowing low-resolution video imaging using the infrared-sensitive sensor element. Open source design!

Project #29 - DFRobot - Soil Moisture Sensor - Mk28

Let’s take a look at this interesting All-in-one Starter Kit for Pico 2—a kit designed for learning electronics and programming, ideal for beginners and beyond. It allows users to begin their journey with the Pico 2 RP2350 processor in a simple and fun way. The kit comes in a small suitcase measuring 195 × 170 × 46 mm. Inside, there’s a single board equipped with as many as 17 sensors or modules serving various functions. It also features a 2.4″ full-color TFT touchscreen.

Discover the DIY Digital Oscilloscope: affordable, easy-to-build, and perfect for hobbyists, students, and professionals.And it also very cheap to build it.