Blog

Cheap EOS3 BGA64 design

Cheap EOS3 BGA64 design

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, probably buried vias so for few boards that did not make sense to me…But as I still wanted... »

Modular FPGA board

Modular FPGA board

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 we are specially interested in adding fast peripherals that are now missing on ULX3S. Al... »

Modular FPGA board – blender

Modular FPGA board – blender

Paula: Blender: We imported the board from KiCad in various formats into Blender in order to get the most customized and simple object for editing or manipulation. The first problems were related to the excess geometry that occurs when importing .stl and .obj format. This problem needs to be solved ... »

Adjusting microscope focus with adapter ring

Adjusting microscope focus with adapter ring

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 it was impossible to get good focus at eye-peace and on the HDMI at the same time. I could... »

Running wordpress in docker container

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 editor Copy code bellow to the file. If you do not need phpadmin you can remove those lines Change your_MYS... »

Using NodeRed and Grafana to log Gateway coverage

Using NodeRed and Grafana to log Gateway coverage

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 other way to visualize your GPS data. So first you need to have your data received in NOD... »

Reversing Mini Fabrikator V2 (Malyan M100) 3D Printer

Reversing Mini Fabrikator V2 (Malyan M100) 3D Printer

  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 it usually comes partially disassembled with missing or unscrewed bolts and screws. When you fix tha... »

Mini fabrikator v2 3d printer win7 x64 driver – fastest way

Mini fabrikator v2 3d printer win7 x64 driver – fastest way

»

Doing ULX3ST FPGA board @home part3

Doing ULX3ST FPGA board @home part3

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 could load sample code from arduino :) Galaga Fractals Just default frame buffer. Some fancy text... »

Doing ULX3ST FPGA board @home part2

Doing ULX3ST FPGA board @home part2

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 end. Problem!!! Chip was placed wrong. Fixing chip orientation. I still had problems, and solve it on this pic... »

Doing ULX3ST FPGA board @home

Doing ULX3ST FPGA board @home

Tnx to EMARD new FPGA board is in town ;) https://github.com/emard/ulx3s 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 FPGA. And we need to do that manually. Bare FPGA board Just another look... »

DIY LoRaWAN gateway

DIY LoRaWAN gateway

SmartZG – powered by Radiona »

STM32F030 hardware flash backup

STM32F030 hardware flash backup

@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 out. But Nextion does not provide factory flash for this display so if I change firmware I ... »

RFM69 – STM32 – Raspberry pi gateway – UKHASnet @ 868MHz

RFM69 – STM32 – Raspberry pi gateway – UKHASnet @ 868MHz

I have ordered some 868MHz modules from internet and just searched a way to use it. At first look https://ukhas.net/ looked nice so I decided to test it :) If you get lost there is nice sitemap so you can find what you are looking… https://ukhas.net/wiki/dbrooke_nodes:dbpg?do=index So it is ti... »

Arduino boat

Arduino boat

»

Hacking parking sensors

Hacking parking sensors

»

Shrinking Raspberry Pi SD Card Images

Shrinking Raspberry Pi SD Card Images

http://www.aoakley.com/articles/2015-10-09-resizing-sd-images.php https://yadi.sk/d/TkysS1sWzV4W6 »

Turning cheap GSM development board into opensource BLE mobile phone

Turning cheap GSM development board into opensource BLE mobile phone

I saw that Ai Thinker that developed ESP8266 has some new modules, and after a bit of search found cheap  GSM development board http://www.ebay.com/itm/152255901336?_trksid=p2060353.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT I have found all documentations and source code for 8051 chip. I have te... »

Use cheap STM32 development board with arduino

Use cheap STM32 development board with arduino

http://www.ebay.com/itm/291693366485?_trksid=p2060353.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT   Set jumpers like on picture!!! Connect to any USB-Serial Board USB-ser            STM32 RX                    —    A9 TX                    —    A10 GND                 —    G... »

Fixing broken pins on korg nanopad2

Fixing broken pins on korg nanopad2

»