Goran Mahovlić

Goran Mahovlić wrote a new post, Modular FPGA board 4 months ago

At start of the year NLnet decided to sponsor development of modular FPGA, for now we will call it ULX4M as first version should have everything that ULX3S already has. Later we want to add more peripherals, and […]

Goran Mahovlić wrote a new post, Adjusting microscope focus with adapter ring 7 months ago

At some point I have ordered microscope. I wanted one that would have Simul-Focal Stereo with HDMI out that would allow me to work on it looking on eye peaces while recording or streaming at the same time.

But […]

Goran Mahovlić wrote a new post, Running wordpress in docker container 7 months ago

For long time I wanted to have backup of lemilica, as I had lots of problems with site remaining up.

So few days ago I decided to try docker containers.

Create wordpress.yml with your favorite […]

Goran Mahovlić wrote a new post, Cheap EOS3 BGA64 design 7 months ago

I bought EOS3 BGA on CrowdSupply and as I started to work on my board. After some time I have discovered that it would be hard to make it at low price.If I would do it correctly I would need to use small vias, […]

Goran Mahovlić wrote a new post, Using NodeRed and Grafana to log Gateway coverage 3 years, 5 months ago

Using ttnmapper to map nodes is often good start for mapping.
But ttnmapper is still closed source and you can only use it for showing coverage of TTN gateways.
If you have your own infrastructure you need some […]

Goran Mahovlić wrote a new post, Reversing Mini Fabrikator V2 (Malyan M100) 3D Printer 3 years, 8 months ago

And all of this started when EMARD ordered one Mini Fabrikator V2

For a some time I have this small printer I have buy it from EMARD that already applied his fixes on it.

When you get printer i[…]

Goran Mahovlić wrote a new post, Mini fabrikator v2 3d printer win7 x64 driver – fastest way 3 years, 8 months ago

Goran Mahovlić wrote a new post, Doing ULX3ST FPGA board @home part3 3 years, 8 months ago

We had some issues loading file to a new board.

But board was detected so that was good start.

After I told Emard I have problem uploading file he fixed JTAG tool.

And I could screen to the board.

Now I[…]

Goran Mahovlić wrote a new post, Doing ULX3ST FPGA board @home part2 3 years, 8 months ago

Checking if all pins of FPGA are connected.
Sorting parts.
More sorting.
Soldering FTDI.
Soldering capacitors.
Soldering power circuits.
Random soldering
Random soldering.
Almost done.
Near[…]

Goran Mahovlić wrote a new post, Doing ULX3ST FPGA board @home 3 years, 9 months ago

Tnx to EMARD new FPGA board is in town ;)

We have tested and almost all examples are already working.

But there is still many things to try.

One thing for checking is will examples work on smaller[…]

Goran Mahovlić wrote a new post, DIY LoRaWAN gateway 3 years, 9 months ago

Goran Mahovlić commented on the post, Turning cheap GSM development board into opensource BLE mobile phone 4 years, 3 months ago

I will try to make some opensource board for this so you will need to solder module or chip only. For a few pcs I could even solder nRF on board, rest is easy…

Goran Mahovlić commented on the post, Turning cheap GSM development board into opensource BLE mobile phone 4 years, 3 months ago

I have used some ERSA SMD soldering iron, yes it is hard to solder, but wire by wire and I manage to get it …

Goran Mahovlić wrote a new post, STM32F030 hardware flash backup 4 years, 4 months ago

@Home I had Nextion LCD
It is having some bad software that is working on windows only
I was not able to find a way to use interrupt on some pins.
So I was thinking about uploading my code on STM32 to test it[…]