Podcast Notes
Our guest this week is Dustin Holliday, a
Production Line Engineer at MacroFab, INC. Dustin programs the
My200 paste jetter, the My500 pick and place, and the Rhythm
Selective Solder. See Figure 1.
Stephen is working on a customers test fixture and is using the
Parallax Propeller. He really likes how it is easy to route the
package since each pin is just general I/O and you can change
around the pin definitions.
Parker is almost done with the first test fixture article.
Should be out soon.
Parker has also been testing the ESP-12E WiFi module which uses
the ESP8266 IC. Seems that some USB ports don't provide enough
power even though they enumerate for 500mA at 5V. The ESP-12E is on
his
Prop Dev Stick Bit Flicker. Code is a port of Bylnk written by Roy Eltham. See Figure 2.
On the Prop Fan board
Parker has been working on he needed to read an analog signal
without a ground reference. Instead of setting up an isolated
supply and an isolated data buss he is going to try an isolated
opamp. Part number ACPL-C870-000E.
Have to compress the 0-14V input range to 0-2V with a voltage
divider but Parker isn't looking for high resolution.
Stephen and Parker are probably overly excited about the fact
that Digi-Key now has
pictures for categories on the connectors
page.
Another
ink to circuit board project via paint pen project. This pops
up every 6 to 87 months but this time they solved some of the
technical issues but not all of them.
The Current
Source, an engineer out of Florida sent us a crappy
Kickstarter idea! He calls it the "Microprocessor Launchpad"
and it is basically a DIY kit for making your own microprocessors
from scratch. Included is a sheet of metal, micro drill bits, some
bond wire, and a sharpie. Stretch goals include silicon wafers and
a hack saw to cut out your die.
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