Timelapse dolly the 2nd

Hi,

today the weather was perfect for doing a first test with my brand new DoItYourself-Timelapse rail. Cold and windy, but NO RAIN 🙂

This was my first attempt which already works perfect for my needs, but the timelapse dolly is to heavy for everyday tasks. So the new version is made of aluminium which seems to have too less weight for windy situations. The logic for the stepper motor is very basic . 2 pushbuttons for start and stop. 2 more buttons for manually sliding the rail forward and backwards.

Everything powered with 5V 2A (stepper) and 5V 1A (Arduino)

The resulting single 1150 pictures (JPEG and RAW format) are put together by a little bash script to convert them into a little movie.

Parts:

Smartphone Mikroskop per Arduino steuern

Hi,

heute schauen wir uns mal an, wie man aus jedem x-beliebigen Smartphone ein hochauflösendes Mikroskop macht. Damit kann man Insektenaugen oder winzige Pflanzenteile in bestechender Auflösung Filmen oder Fotografieren. Zum „Anfahren“ des Fokusierpunktes (bsw. für Focus-Stacking) benutzen wir einfach einen Arduino Mini Pro, an dem ein simpler 5 Euro Stepper Motor hängt. Das Ausleuchten der Szene übernehmen 2 Neopixel LEDs. Die Steuerung des Motors erfolgt über 2  Pushbutton.

Hier sieht man, wie ich einen ESP8266EX und einer Odroid-Kamera von hardkernel.com anfahre, um zu gucken, ob auch alles o.k. ist. Wie erwartet ist alles Bestens (-> Danke für die prompte Lieferung ) und das Internet of Things kann auch bei mir zu Hause starten.

Hier die Vorgänger-Version der Kamera mit altem HTC Smartphone:

Wie es funktioniert ->

Weather station goes IOT

Hi,

my little weather station has made it to  IOT.

Features:

Transmitter:

  • Odroid-C1+ with L(inux)A(pache)M(ySQL)P(HP)
  • Arduino Mini Pro as transmitter with
  • RF 433Mhz transmitter  module  and
  • 6 Neopixel LEDS from an ink1003 LED strip and a
  • BME280 temperature/humidity/pressure sensor from Bosch

The Apache webserver has a little PHP-script running that grabs the data over usb serial from the Arduino Mini Pro. A nice webinterface shows you the live temperature data and all the other values generated by the BME280. If the temperature is too hot, the 2 first neopixels turn red. If temperature is o.k. they turn green. If it is below 0 degrees it turns blue.

Receiver:

  • Arduino Nano with a
  • RF 433Mhz receiver module

The Odroid-C1+ can be connected

  1. to the BME280 directly without the need of any Arduino
  2. to the Arduino transmitter
  3. to the Arduino receiver

All data can be received by opening a URL in a browser. So you can use a mobile phone, pc or tablet or just another Odroid-C!+. Even using a virtual machine is possible, of course.

In all three cases the data will be served to the internet by the Apache webserver. In this case I only use localhost (and my home AP) to serve the data to all rooms in my house.

Both receiver and transmitter are battery driven.  The max  distance between the transmitter/receiver is roiund about 5 meters indoors through a single wall. So you can measure outdoor values, too. More testing will be done.

Have fun.

Addendum to CodemotionWorld Berlin 2015

CodemotionWorld 2015 in Berlin is over.

Well, for me personally it was a new experience to meet people like Stefan Hermann (MidiBricks), one of the Zoobotics guys and a lot of other people.

I took the chance and participated a workshop on Monday about supercolider which is a very, very awsome software project for musicians interested in live coding synthesizer related things.

In the video you can see the „Traubenpiano“ in action  and some thoughts on the codemotionworld itself.

Weatherstation with radio transmission on Odroid-C1+

Hi,

We present a little radio weatherstation that shows the temperature on a Touchdisplay on top of a Odroid-C1+.

UPDATE: Weather station goes IOT

A transmitter module is used to send a customized string and a long value (the actual temperature) measured by a BME280 sensor from Bosch. It is connected to an Arduino Mini Pro.  IThe temperature sensor is  highly  configurable, senses temperature, humidity and air pressure values of your local enviroment. The values are sent from a receiver module to another Arduino (Nano). I took these Arduinos because of the small form factor, o my wife does nt complain about the „big“ electronic devices  in our rooms.

Here only one value (temperature) is transmitted.

It is getting colder outside during the next days. So if you get up early in the morning you can use it to get a really precisely measured value for the temperature outside and instantly know which clothing for the upcoming day is reasonable.

Mini-Synthesizer im Taschenformat

This is a WiFi  Mini-Synth with small form factor

Features:

  • MIDI/OSC compatible
  • HiFi quality stereo sound
  • Battery driven (5V)
  • Complete linux operating system  (Ubuntu 14.04)
  • Sound Generator (ZynaddSubFX)
  • Transparent conductive touch sensitive foil as HID
  • High configurable and updateable
  • Low latency (RT-preemptive kernel)