Easy PWM driver

A friend wanted to highlight the model, purchased specifically for this purpose LED strip and power supply.
It turned out that all the lights bright too much, and he need a system limiting the intensity of illumination. The natural course of things was to create a simple PWM controller.

Helmet camera mount

I bought Mobius ActiveCam cemara. Quite good device, but unfortunetly mount is not enought good for helmet curvature.
I thought about making mount on 3D printer, but to do this i need model of helmet.
To do this job I make simple device: spherometer, which allows me to mensure radius of helmet curvature. My project for printing is ready to print and avaliable here

Quarto board game

By chance I came across a cool board game called quarto. It is like Tic-tac-toe. You need to place the four figures of the same trait (height, shape, color and termination) in one line. The problem is that your oponent choose figures for you. The easiest way to understand the rules is to play online
Because of this, it would be fun to play with a real opponent,. I and my girlfriend made game of our own. Effect below:

Simple tripod

I needed a simple tripod. I was looking for simple ideas, but unfortunately i didn't find anythink intresting. I start thinking and make something like this:

The legs are made from pieces of timber. The same mount are 3 pieces of flat bar with cross 20x4 and a length of about 50mm. First drilled holes, then heating burner and turned 90 degrees. The legs screwed M6 screws, plates were screwed with an M10 screw.

Accelerometer MMA7455

I want to use accelerometer in one of my projects. I choose MMA7455, accelerometer has leads under the case so you need some gym to fix it. I solder it with hot air and under the microscope.

Ethernet Controller, Part 2

Order PCB arrived. Time for assembly, unfortunately it did not go according to plan:

Ethernet driver

One day I got to do driver inputs / outputs managed by the ethernet.
Design assumptions are as follows:

• 20 inputs
• 20 relay outputs
• controling by www page and comand line
• UART and ISP/I2C interfaces
• all based on PIC18F97J60 with hardware Ethernet control