From 832e954f1ed3890c79224029af9838ea29e0e2ea Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?King=20K=C3=A9vin?= <kingkevin@cuvoodoo.info>
Date: Wed, 2 Feb 2022 18:46:13 +0100
Subject: [PATCH] put development instructions in seperate file

---
 DEVELOPMENT.md | 82 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 82 insertions(+)
 create mode 100644 DEVELOPMENT.md

diff --git a/DEVELOPMENT.md b/DEVELOPMENT.md
new file mode 100644
index 0000000..5be4776
--- /dev/null
+++ b/DEVELOPMENT.md
@@ -0,0 +1,82 @@
+this will describe how to generate the output file form the sources.
+
+requirements
+============
+
+to be able to generate the outputs you need following software:
+
+- rake: the central script taking care of generating the output files (Makefile is too cumbersome to parse files)
+- [QEDA](http://qeda.org/): to generate footprints for the parts
+- [Lepton EDA](https://github.com/lepton-eda/lepton-eda): for the schematic capture
+- [pcb-rnd](http://repo.hu/projects/pcb-rnd/): for the board layout
+the output generation is automatized.
+
+compiling
+=========
+
+library
+-------
+
+almost all of the symbols and footprints used in the schematic and board layout are defined in the [QEDA](http://qeda.org/) format and generated for the CAD software.
+the `library` folder contains the QEDA parts definitions.
+
+to install QEDA using NPM from the official repository:
+~~~
+sudo npm install -g qeda
+~~~
+
+to install QEDA from the sources:
+~~~
+git clone https://github.com/qeda/qeda
+cd qeda
+npm install
+sudo npm install --global
+~~~
+
+to generate the parts:
+~~~
+rake library
+~~~
+
+this will use the parts definition (.yaml files) in the `library` to generate [gEDA gschem](http://wiki.geda-project.org/geda:gaf)/[Lepton EDA](https://github.com/lepton-eda/lepton-eda) symbols (.sym files) in the `geda/symbols` folder, and [coralEDA pcb-rnd](http://repo.hu/projects/pcb-rnd/) footprints (.lht files) in the `coraleda/subc` folder.
+
+only the QEDA parts in subfolders within `library` come from the [QEDA library](https://doc.qeda.org/library/), but the files are included in this project for simplicity and archiving purposes.
+all other parts are custom and written for this project.
+
+schematic
+---------
+
+the `.sch` file is the schematic source file.
+it has been drawn using [Lepton EDA](https://github.com/lepton-eda/lepton-eda).
+
+it uses standard symbols, and the ones in the `geda/symbols/` folder.
+most symbols are generated by QEDA as described above.
+
+to export as pdf:
+~~~
+rake print
+~~~
+
+BOM
+---
+
+to export the bill of material (as CSV):
+~~~
+rake bom
+~~~
+
+board
+-----
+
+the `.lht` file is the board layout source file.
+it has been drawn using  [coralEDA pcb-rnd](http://repo.hu/projects/pcb-rnd/).
+
+it uses the symbols from the `coraleda/subc/` folder.
+most symbols are generated by QEDA as described above.
+`oshw_logo.lht` is just the Open Source Hardware Logo.
+it been generated from https://oshwlogo.cuvoodoo.info/.
+
+to export gerber files for PCB manufacturer (and photo preview + overview document):
+~~~
+rake fabrication
+~~~