Free PCB Design Tools & Fabrication links:
- Digi-key provides two free PCB design tools. They are pretty cool. Here is the link
- KiCAD is a great open source tool to design PCBs also. Here is the link
- Natasha Baker has started a company (SnapEDA) which provides free footprints for PCB design. I find it very useful. Here is the link
- OshPark is an awesome company to fabricate small, low cost, high quality PCBs. Their resolution is pretty good specially for 4 layer boards at this price: Here is the link
- If you want to assemble multiple PCBs then you need stencils. Oshstencils is the ultimate solution for hobbyist. Here is the link
Machine Learning Tools and Videos:
Single Board Computers:
I am a real fan of SBCs. I personally has used couple of boards for signal processing and other purposes. Here are couple of awesome SBC links:
- Beagle Bone Black (my favorite because it is completely open hardware product. I am also a bit biased towards TI processors 😛 )
- Raspberry PI
- PINE 64
- CHIP
- PCDuino