Macrofab Engineering Podcast

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 num