=
Okay after working all day (in this bloody 35 degree heat wave) i have =
come up with some estimated pricing and designs.
=
First the pricing, this includes
PCB
SMD LED
SMD resistor
SMD pot (2 meg)
.22uf monolithic cap
nc7s14 fairchild tiny logic single gate scmitt inverter =
4 pin in connector
4 pin out connector
2 pin header
3 pin header
two 1 pin header
two jumpers.
=
The total cost comes to about $4.50 which is more than i expected, but =
i can get it lower using slightly different parts.
=
It runs as a normal NV neuron but there are a few things, jumper A is d=
esigned to give bias, you can adjust the pot to the value you want (0 ohms =
if you want) then you use the two pins to add whatever bias you want, also =
handy cause you can just plug it in using a connector. When you aren't usin=
g the bias, set the pot to the value you want and use the jumper to join th=
e resistor to ground. =
=
Jumper B has three headers. The first is to connect your output to (mo=
tor driver). The next two allow you to turn on or off the LED.
=
The 'board in' Connector (male) is located on the side of the board, it=
provides power from the previous neuron. It also gives the output from the=
previous neuron to the input of the current one. The spare connector (whic=
h has a jumper) can be used for any cross board application, it's just an a=
uxillary to add more functionality, use your imagination on just how to use=
it (bias, sensors, data bus).
=
The 'board out' connector (female) is pretty self explanatory. It has t=
wo power connectors to pass power to the next neuron. Also has the output f=
rom the current neuron to give to the input of the next. The spare connecto=
r is the same as above.
=
Boards can either be connected directly side to side or with a cable. P=
ower only has to be provided to one neuron, which could be done by solderin=
g wires onto the power pads, or i could add connector (but theres enough al=
ready).
=
The whole thing would be surface mounted to a small PCB, in the shape o=
f a triangle of hexagon. That means that eventually cables will be required=
or connectors used on multiple sides of the PCB. You could also have blank=
connector boards but that just adds to cost and complexity.
=
What do you think?
=
David
content-transfer-encoding: quoted-printable
DOCTYPE HTML PUBLIC "-//W3C//DTD W3 HTML//EN">
x">
Okay after working all day (in this=
bloody =
35 degree heat wave) i have come up with some estimated pricing and =
designs.
First the pricing, this includes
PCB
SMD LED
SMD resistor
SMD pot (2 meg)
.22uf monolithic cap
nc7s14 fairchild tiny logic single =
gate =
scmitt inverter
4 pin in connector
4 pin out connector
2 pin header
3 pin header
two 1 pin header
two jumpers.
The total cost comes to about $4.50 which is more t=
han i =
expected, but i can get it lower using slightly different =
parts.
It runs as a normal NV neuron but there are a few t=
hings, =
jumper A is designed to give bias, you can adjust the pot to the value =
you =
want (0 ohms if you want) then you use the two pins to add whatever bia=
s you =
want, also handy cause you can just plug it in using a connector. When =
you =
aren't using the bias, set the pot to the value you want and use the ju=
mper =
to join the resistor to ground.
Jumper B has three headers. The first is to c=
onnect =
your output to (motor driver). The next two allow you to turn on or off=
the =
LED.
The 'board in' Connector (male) is located on the s=
ide of =
the board, it provides power from the previous neuron. It also gives th=
e =
output from the previous neuron to the input of the current one. The sp=
are =
connector (which has a jumper) can be used for any cross board applicat=
ion, =
it's just an auxillary to add more functionality, use your imagination =
on =
just how to use it (bias, sensors, data bus).
The 'board out' connector (female) is pretty self =
explanatory. It has two power connectors to pass power to the next neur=
on. =
Also has the output from the current neuron to give to the input of the=
=
next. The spare connector is the same as above.
Boards can either be connected directly side to sid=
e or =
with a cable. Power only has to be provided to one neuron, which could =
be =
done by soldering wires onto the power pads, or i could add connector (=
but =
theres enough already).
The whole thing would be surface mounted to a small=
PCB, =
in the shape of a triangle of hexagon. That means that eventually cable=
s =
will be required or connectors used on multiple sides of the PCB. You c=
ould =
also have blank connector boards but that just adds to cost and =
complexity.
What do you think?
David
Home