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Updated / reworked version using an Adafruit Feather M0 Express as the MCU instead of an Arduino
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ReflowToasterOven2
.gitignore
AdafruitFeather.mod
COPYING
PartsList.text
README
ReflowToasterOven-mech2.gcad3
ReflowToasterOven-mech2.ps
ReflowToasterOven-mech2.tcl
ReflowToasterOven2--brd.svg
ReflowToasterOven2-NPTH-drl_map.ps
ReflowToasterOven2-NPTH.drl
ReflowToasterOven2-WiringBreadboard.pdf
ReflowToasterOven2-cache.lib
ReflowToasterOven2-drl.rpt
ReflowToasterOven2-drl_map.ps
ReflowToasterOven2.cmp
ReflowToasterOven2.drl
ReflowToasterOven2.kicad_pcb
ReflowToasterOven2.net
ReflowToasterOven2.pdf
ReflowToasterOven2.pro
ReflowToasterOven2.sch
ToasterConsole.tcl
aux.lib
buildTC.sh
feather_m0_express.lib

README

This project is based on the Instructables "Hack a Toaster Oven for Reflow
Soldering" by frank26080115 at
https://www.instructables.com/id/Hack-a-Toaster-Oven-for-Reflow-Soldering/

Notable differences:

1) It uses an Adafruit Feather M0 Expressas the processing element and all of
the electronics (except the display, pushbuttons, buzzer, and relay) are
mounted on an cut down BusBoard Prototype Systems BR1 solderable breadboard --
all of the components are through-hole components.

There is a KiCAD project here. It includes a "four layer" board. Actually I
have no intention of creating a "four layer" PCB. I intend to build this on
aBusBoard Prototype Systems BR1 solderable breadboard. The PCB I "designed"
with KiCAD is a mock up for the BR1 solderable breadboard. The green layer
represent the wiring already on the BR1 solderable breadboard, and includes
the bus strips. The red, blue and white "layers" represent the added wiring.
The board also provides the component placement. For those people without
KiCAD installed, I have included a PDF of the schematic in the file
ReflowToasterOven2.pdf and a SVG file of the board showing the layout.

2) Everything is mounted in a pair of plastic boxes and instead of "hacking"
an extension code, an AC power entry module and a pair of AC Receptacles are
used.

There are three files related to the mechanical construction:

ReflowToasterOven-mech2.tcl
ReflowToasterOven-mech2.gcad
ReflowToasterOven-mech2.dxf

ReflowToasterOven-mech2.tcl is a Tcl program that generates the 
ReflowToasterOven-mech2.gcad file, which is the input for the GCAD3D program.  
The ReflowToasterOven-mech2.dxf is a DXF file, that can be imported to any 3D 
cad program.


3) An Adafruit 1.8" *Color* TFT LCD SPI display is used, using Adafruit's 
graphics library.

4) The software is a "standard" Arduino project.

And the code lives in the ReflowToasterOven2 subdirectory. It compiles
successfully and just fits in the Uno's flash memory and only 1/2 of the SRAM
is used by static variables, leaving just under 1K for dynamic variables.

You will need to install the Adafruit ST7735 and Adafruit_GFX libraries from 
Adafruit's GitHub repo.  You will also need the MsTimer2 library 
(http://www.pjrc.com/teensy/td_libs_MsTimer2.html).

*Most* of the code is copied from the original program by frank26080115.  I 
modified things to use C++ classes and adapted to use the Arduino I/O 
libraries, the Adafruit ST7735-based TFT display and the MsTimer2 library.

I have not built or tested it yet.
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