Getting up to speed
Ron admires our handy work from previous weeks. |
Peter test drives the Unix machine. |
The Trippy motor driver project
Alan checks a mock-up to see if the connectors will fit. |
This is what the autorouter will do. |
Jeff hand routed this board since last week. |
Here is another attempt with different placement and smaller traces. |
The final board. (There were a couple more changes after double checking the schematic.) |
Test fitting the chips on the printed top layer. |
The board next to Alan's MiniRobo Mind CPU board. We made the boards stackable. |
Ron's -What If?- question
Ron wanted to know how many time slices he needs to read n tags. So everyone started calculating. |
Here are Ron's notes. |
Of course Alan did it the old fashioned way. He used a computer. |
Jeff takes his Acer Warplink card apart
This actually happened a couple days after RSOH. It was prompted by Rob T. wanting to know if he could connect a wireless network to his microcontroller. Brynn said a system he worked with had an 8-bit interface and a serial interface and a PCMCIA interface. Then Brian said a system they used had something similar. It looks like this Acer card is using an 8-bit interface to talk to the ISA bus. So maybe it would work.
The ISA adapter card and the wireless network card module. |
Jeff wnated to know if he could connect an external antenna. |
Looks like there is only two connections. So it will probably work. |
Just a 44-pin custom chip, a connector, a transistor and a couple resistors and capacitors. |
The module plugs into the ISA card with a single connector. |
Here is the connector pin-out. |