Let's Encrypt? Yes,!

I started using Lets's Enrypt for SSL certificate generation today. Let’s Encrypt is a free, automated, and open certificate authority (CA), run for the public’s benefit. It is a service provided by the Internet Security Research Group (ISRG).

I had this on my TODO list since a long time but I didn't liked the ACME implementations available in Gentoo Linux. Today I found the nice project which made it very easy for me to get things running. is an implentation of the ACME client protocol written in pure Shell language. Just follow the instructions on's Wiki Page and I believe you don't need more documentation...

I am testing things now for some days and when everything is working as expected I will write a short manual on how I did my setup. I really recommend to take a look at if you want to make all your websites available via SSL. This site is from now on forwarding all HTTP requests to HTTPS.

I am very happy... :)

Still alive

Still alive...

More to come in the next weeks... ;) Just want to say that I am still alive and am working on cool stuff...

Sorry for trouble with this website in the past month. My site generator was broken after an OS update and then this site was also broken. I have fixed it now and all content should be available like before. I fyou find broken links i would love it if you report them to me so i can fix them...

Images are still not shown in blog posts but you can click on the the "alt" link to see them... I will fix that ASAP... ;)

UPDATE: Images and Photos are back in the blog posts...

Arduino Water Sensor for Houseplants

This is just a very minimal example on how to use these kind of sensors. I just read a value from an analog pin every 2 seconds and print it out to serial.

These sensors are available very cheap online and are easy to use... So, now my plants go online... :)

Arduino Water Sensor For Houseplants

My code:

const int analogIn = A0;

int sensorValue = 0;

void setup() {

void loop() {
  sensorValue = analogRead(analogIn);
  Serial.print("Sensor: ");

And now to something completely... Need to learn how to add a ground plane in Eagle... ;)