Ethernet Hardware in the Works
One thing that I have always wanted for my electronics projects has been a way to connect them to the internet, if not at least the rest of my local network. I know that there are breakout boards and the such for ethernet, but I just didn't feel like paying $45 for something I could build for half that.
Video:
I have tested it with firmware I found online, but that's all I'm going to use other people's code for. I think developing my own IP stack from 802.3 up sounds like a fun challenge, so this project is going to take a lot of work.
Parts list:
Video:
I have tested it with firmware I found online, but that's all I'm going to use other people's code for. I think developing my own IP stack from 802.3 up sounds like a fun challenge, so this project is going to take a lot of work.
Parts list:
- 9 contact female header for digital I/O
- 28 pin DIP socket
- 4 49.9ohm 1% resistors
- 1 2.32kohm 1% resistor
- ferrite bead
- a few 0.1μF bypass caps for power filtering
- 10μF capacitor for the internal 2.5V regulator
- 25MHz crystal
- LEDs + 100ohm resistors
- ENC28J60 ethernet controller (Microchip)
- 8P8C connector with on-board magnetics (Digikey)
- Breakout board for the 8P8C connector (Electroboards)
- Perf board (I used Radio Shack 276-148, but it was a little tight)