Building a receiver for a voice repeater system in this area I set up a thumbsat receiver connected to a Raspberry Pi. The receiver is part of the repeater system to widen it's receiving range. However, the performance turned out not to be too optimal. I guessed that the GSM and Wifi signals around here could cause the …

The default serial speed on the ESP8266 WiFi chip is 115200 baud. If you connect this chip to an Arduino and want to use SoftSerial to talk to it, it will not work. The SoftSerial library is limited to 9600 baud because of hardware limitations of the Arduino. If you want to talk to the ESP8266 with an Arduino at lower …

[caption id="attachment_2130" align="aligncenter" width="450"]WiFi Serial Transceiver Module Breakout Board w& ESP8266 pinout[/caption] This is the pinout for the Seeed WiFi ESP8266 breakout board. Please be careful, it only accepts 3.3 Volt nominal input voltage and logic. Putting 5 …

I went through all the struggles everybody else seems to be going through to get this screen connected to my Arduino Nano. I had the 5V to 3.3V voltage conversion problem, and the "only works with software interrupts" problem which makes the display run slow. The solutions are not complicated but not very wel …

I recently needed to print out a big schematic diagram of the RX/TX board of a Kenwood TS50 Transceiver. This did not fit on a single piece of paper. Instead of downloading all kinds of crappy tools or uploading the image to some "free" site which is going to use it for whatever they think justifies their …

After reading my last blogpost on Anonimatron, you must have asked yourself "Great, but how do I actually use Anonimatron to de-personalize my database"? I tried my best to make basic Anonimatron configuration as self-explanatory as possible, just start it without any command line arguments and it will tell …

Since the interview of Edward Snowden with the Guardian, the discussion about privacy and companies storing and sharing unencrypted private data is picking up. Particularly Americans are worried about what it does for their National security and their private data. But that's actually a naive thought, given the NSA …

Months ago, I got this broken Aeroccino milk frother for free. This week I fiddled with it for a few hours, and got it to work: [youtube=http://www.youtube.com/watch?v=kNEqWH3ILDc] ... and this is how you get it apart. First carefully pull out the button on the front: And then remove the rubber plugs to get to the …

I was happily playing around with the appstore, and came across this funny free game called "Hedgewars". Originally a free Linux game, it apparently got ported to the Mac and put in the App Store, just as a slew of Flash-based games (yes, Steve has some 'splainin' to do). I tried to install Hedgewars on my …

If Santa treated you particularly well this season, or you have put some of your savings to good use, chances are that you have a brand-new Drobo looking at you right now. Meanwhile, your Mac is happily making Time Machine backups to that trusty old local USB disk. So you want to use that new Drobo for Time Machine …