sudokusoftheday.blogspot.com

physudo-e.blogspot.com

Udo's Blog - English: A gaming table for tabletops

http://physudo-e.blogspot.com/2015/01/a-gaming-table-for-tabletops.html

Udo's Blog - English. A collection of my projects in the areas of physics, electronics and information science. Sunday, 18 January 2015. A gaming table for tabletops. For the plates I used 8 mm thick chipboard. A thicker plate is more stable but also heavier and more expensive. 8 mm works pretty fine for me but you shouldn't sit on top of the table. The feet of the table. At Obi, a local hardware store, there are special locks for closets. The connection between the plates. Positioning on the coffee table.

physudo-e.blogspot.com

Udo's Blog - English: I2C OLED display

http://physudo-e.blogspot.com/2014/12/i2c-oled-display.html

Udo's Blog - English. A collection of my projects in the areas of physics, electronics and information science. Sunday, 14 December 2014. If you look for "Arduino OLED Display" on Ebay, you will find a display with a size of 1 inch and a resolution of 128x84 pixels which is controlled via I2C. It costs less than 4 Euros. Of course, 1 inch isn't much, but I was curious and so I ordered it. To show you how small it really is, I placed a coin next to it:. Additionally you need the Adafruit-GFX-Library.

physudo-e.blogspot.com

Udo's Blog - English: Sharpen a brush

http://physudo-e.blogspot.com/2014/12/sharpen-brush.html

Udo's Blog - English. A collection of my projects in the areas of physics, electronics and information science. Friday, 5 December 2014. A newly bought brush is usually sharp and also a bit hard so you can draw very fine lines. After a while, the hair of the brush starts to point into every direction so you cannot use the brush any more. To get the brush back into the state which it has been after buying, you can use a simple trick. A used brush which you cannot use for fine details any more.

physudo-e.blogspot.com

Udo's Blog - English: February 2014

http://physudo-e.blogspot.com/2014_02_01_archive.html

Udo's Blog - English. A collection of my projects in the areas of physics, electronics and information science. Monday, 17 February 2014. A free tool to draw circuits. Today, I want to refer to a useful program:. With this program, you can draw circuits on a very easy level and export them as an image. You do not need to create an account or anything like that. The program is very simple and does exactly what you want so you do not need to take 100 tutorials to being able to draw a simple circuit. The mi...

physudo-e.blogspot.com

Udo's Blog - English: Read out heartbeat sensor

http://physudo-e.blogspot.com/2015/01/read-out-heartbeat-sensor.html

Udo's Blog - English. A collection of my projects in the areas of physics, electronics and information science. Saturday, 24 January 2015. Read out heartbeat sensor. The program reads the sensor value and sends it to the computer via the serial port where you can further process the data (e.g. with Matlab, maybe I will write a post about that). Here is a picture of the plotted heartbeat data on the computer and below the code for the Arduino. Define pins for LED and sensor. LedPin = 13; int. Send back th...

physudo-e.blogspot.com

Udo's Blog - English: February 2015

http://physudo-e.blogspot.com/2015_02_01_archive.html

Udo's Blog - English. A collection of my projects in the areas of physics, electronics and information science. Tuesday, 10 February 2015. Serial communication with Matlab or C#. In the last post, I showed how to read out a heartbeat sensor ( Read out heartbeat sensor. In this post, I want to explain how to read this data with Matlab or C#. I want to start with Matlab. At first, you have to open a serial port:. S = serial('COM3');. Str = fscanf(s);. 9600); port.Open();. Indata = sp.ReadExisting();. A lon...

physudo-e.blogspot.com

Udo's Blog - English: Arduino - read keypad

http://physudo-e.blogspot.com/2015/01/deutsche-version-today-i-want-to.html

Udo's Blog - English. A collection of my projects in the areas of physics, electronics and information science. Tuesday, 13 January 2015. Arduino - read keypad. Today I want to explain how to read out a simple keypad with an Arduino, as seen in the following image. You could use this keypad from ebay: Keypad. For different sizes of Keypads, you can adjust the numbers here. Important: Also change the keyValues array! NumOuts = 4; const. KeyValues[numOuts][numIns] = { '1'. I = 0; i numOuts; i ) { pinMode.

physudo-e.blogspot.com

Udo's Blog - English: December 2014

http://physudo-e.blogspot.com/2014_12_01_archive.html

Udo's Blog - English. A collection of my projects in the areas of physics, electronics and information science. Sunday, 14 December 2014. Arduino - Read out height sensor GY-65. A common way to measure relative heights is the usage of a barometric height sensor. Such a sensor measures the pressure and by using the barometric formula ( Wikipedia. H #include "BMP085.h". H BMP085 barometer; double. Barometer.initialize(); } void. Request pressure (3x oversampling mode, high detail, 23.5ms delay). May pass a...

physudo-e.blogspot.com

Udo's Blog - English: Serial communication with Matlab or C#

http://physudo-e.blogspot.com/2015/02/serial-communication-with-matlab-or-c.html

Udo's Blog - English. A collection of my projects in the areas of physics, electronics and information science. Tuesday, 10 February 2015. Serial communication with Matlab or C#. In the last post, I showed how to read out a heartbeat sensor ( Read out heartbeat sensor. In this post, I want to explain how to read this data with Matlab or C#. I want to start with Matlab. At first, you have to open a serial port:. S = serial('COM3');. Str = fscanf(s);. 9600); port.Open();. Indata = sp.ReadExisting();. Seria...

physudo-e.blogspot.com

Udo's Blog - English: April 2014

http://physudo-e.blogspot.com/2014_04_01_archive.html

Udo's Blog - English. A collection of my projects in the areas of physics, electronics and information science. Wednesday, 23 April 2014. Arduino - I2C scanner. Today, I want to present a simple I2C scanner. The basic functionality is simple: A counter starts at 0 and tries to reach an I2C device. If this fails, the counter increases and checks at the next address. The source code is the following:. I,error); lcd.setCursor(0,1); lcd.print(buf); if. Error = 0) { / success! Delay(1000); } }.