Jul 132014

Looks like an awesome FPV plane to build. Definitely a winter time project. Plans are available, see Youtube video description.

Apr 292014
MPPT boards

LT3652 Solar MPPT charger board, built, tested and ready to use, configured for >18V input and 12.6V/2A output (charge a 3S LiPo directly from solar panel).

2 pcs available, $25/each, shipping included

Bare PCB for above LT3652 Solar MPPT charger, no components soldered or included.

7 pcs available, $5/each, shipping included


When interested leave a comment on this post with your contact email. (Comments will not be published). Only Paypal accepted.

Apr 082014

While fiddling with Tor in the last days I was wondering if I can compile the latest source code myself for a Win32 environment. The Tor FAQ gives a hint. Unfortunately the mentioned document is no longer available. It was withdrawn for a revision and a new one is not yet available. Google found a mirror and I took this as a starter. I found the document not complete and useful for the actual source code versions so I wrote an update during my build process (download below). The document is based on the source code versions available in June 2014. The whole build process was performed on a Windows 7 32bit OS running in VirtualBox. Note, the missing Tor specification documents for the package builder are not included in the source code. There is a ticket about this, obviously not yet fixed. The build process was changed for the following thinks:

a) Making of Tor uses the –disable-gcc-hardening flag to  remove the requirement for libssp-0.dll.

b) In openssl the flag -DOPENSSL_NO_RDRAND disables the default Intel RDRAND RNG because it considered insecure.

c) Uses -DOPENSSL_NO_HEARTBEATS to prevent usage of the memory leakage bug discovered on 7th April 2014.

d) Openssl and Tor building with static libraries only, so no extra DLLs are required.

Here is a screen video from the build process:

Apr 072014

Demolition of a 212m radio tower from 1952.
Unfortunately I missed the fall. Detonation came without warning horn after 13min of circling and according to Murphy’s law the camera was not pointing at the tower this moment. Next I got were only smoking ruins.