This is a simple multifunctional device that, thanks to the high precision of the generated frequencies (with two decimal places), can successfully emulate almost all known therapeutic devices for frequency treatment.

I used this board to connect an Intel Compute Stick with mail hdmi connector to a portable 7-inch display with female hdmi input. You can use it as you wish. The clearance between the soldered connectors is 7 mm.

A basic robot motor driver brain, utilizing the Wemos D1 Mini.

The main advantage of this sensor over standard MEMS Acceleration Sensors is in its ability to distinguish between actual seismic activity due to an earthquake and signals due to other causes.

This project demonstrates how to build a real-time GPS tracker using the Heltec WiFi LoRa 32 V4 and the REYAX RYS352A GNSS module. The tracker hosts its own web interface, allowing any device on the same Wi-Fi network to monitor live location and travel history directly from a browser. The project processes NMEA data locally, displays live coordinates on the onboard OLED, and visualizes the current location and travelled path on OpenStreetMap without relying on cloud services.

In this tutorial, I am going to unbox and show you guys how to program and use this cute little all-in-one kit from Elecrow using Arduino IDE.

I made this project with stuff that I have in boxes, a project that attracts attention. Who doesn't like LEDs?

Foldable Lamp Box - Night Light - reacts to sound and has adjustable brightness, USB port for charging, runs 24h on Battery - ATtiny85 processor - 25x WS2812 leds

A simple board for controlling meltybrain robots, uses OpenMelt firmware.

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!

This is actually a modern replica of the so-called "E-Meter", device used in Scientology practices which costs several thousand dollars.

I have a small 2*2cm 8x8 LED Matrix, so I made a circuit for it.

Eurocard guide system made by 3D-printer

Create a custom ESPHome dashboard for your smart home setup with the help of CrowPanel 7" HMI Display

Detect USB Killer flash drivers and prevent damage to hardware.