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Vitaly Puzrin
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‎.eslintrc.yml

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env:
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node: true
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browser: true
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es6: true
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parserOptions:
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ecmaVersion: '2017'
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sourceType: module
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rules:
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accessor-pairs: 2
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array-bracket-spacing: [ 2, "always", { "singleValue": true, "objectsInArrays": true, "arraysInArrays": true } ]
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block-scoped-var: 2
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block-spacing: 2
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brace-style: [ 2, '1tbs', { "allowSingleLine": true } ]
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# Postponed
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#callback-return: 2
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comma-dangle: 2
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comma-spacing: 2
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comma-style: 2
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computed-property-spacing: [ 2, never ]
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# Postponed
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#consistent-return: 2
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consistent-this: [ 2, self ]
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# ? change to multi
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curly: [ 2, 'multi-line' ]
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# Postponed
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# dot-notation: [ 2, { allowKeywords: true } ]
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dot-location: [ 2, 'property' ]
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eol-last: 2
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eqeqeq: 2
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func-style: [ 2, declaration ]
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# Postponed
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#global-require: 2
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guard-for-in: 2
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handle-callback-err: 2
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# Postponed
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indent: [ 2, 2, { VariableDeclarator: { var: 2, let: 2, const: 3 }, SwitchCase: 1 } ]
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# key-spacing: [ 2, { "align": "value" } ]
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keyword-spacing: 2
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linebreak-style: 2
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max-depth: [ 1, 3 ]
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max-nested-callbacks: [ 1, 5 ]
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# string can exceed 80 chars, but should not overflow github website :)
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max-len: [ 2, 120, 1000 ]
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new-cap: 2
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new-parens: 2
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# Postponed
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#newline-after-var: 2
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no-alert: 2
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no-array-constructor: 2
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no-bitwise: 2
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no-caller: 2
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#no-case-declarations: 2
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no-catch-shadow: 2
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no-cond-assign: 2
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no-console: 1
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no-constant-condition: 2
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no-control-regex: 2
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no-debugger: 1
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no-delete-var: 2
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no-div-regex: 2
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no-dupe-args: 2
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no-dupe-keys: 2
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no-duplicate-case: 2
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no-else-return: 2
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# Tend to drop
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# no-empty: 1
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no-empty-character-class: 2
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no-empty-pattern: 2
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no-eq-null: 2
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no-eval: 2
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no-ex-assign: 2
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no-extend-native: 2
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no-extra-bind: 2
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no-extra-boolean-cast: 2
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no-extra-semi: 2
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no-fallthrough: 2
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no-floating-decimal: 2
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no-func-assign: 2
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# Postponed
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#no-implicit-coercion: [2, { "boolean": true, "number": true, "string": true } ]
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no-implied-eval: 2
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no-inner-declarations: 2
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no-invalid-regexp: 2
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no-irregular-whitespace: 2
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no-iterator: 2
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no-label-var: 2
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no-labels: 2
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no-lone-blocks: 1
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no-lonely-if: 2
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no-loop-func: 2
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no-mixed-requires: [ 1, { "grouping": true } ]
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no-mixed-spaces-and-tabs: 2
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# Postponed
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#no-native-reassign: 2
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no-negated-in-lhs: 2
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# Postponed
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#no-nested-ternary: 2
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no-new: 2
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no-new-func: 2
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no-new-object: 2
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no-new-require: 2
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no-new-wrappers: 2
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no-obj-calls: 2
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no-octal: 2
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no-octal-escape: 2
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no-path-concat: 2
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no-proto: 2
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no-redeclare: 2
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# Postponed
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#no-regex-spaces: 2
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no-return-assign: 2
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no-self-compare: 2
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no-sequences: 2
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# Postponed
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#no-shadow: 2
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no-shadow-restricted-names: 2
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no-sparse-arrays: 2
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# Postponed
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#no-sync: 2
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no-trailing-spaces: 2
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no-undef: 2
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no-undef-init: 2
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no-undefined: 2
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no-unexpected-multiline: 2
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no-unreachable: 2
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no-unused-expressions: 2
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no-unused-vars: 2
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no-use-before-define: 2
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no-void: 2
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no-with: 2
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object-curly-spacing: [ 2, always, { "objectsInObjects": true, "arraysInObjects": true } ]
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operator-assignment: 1
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# Postponed
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#operator-linebreak: [ 2, after ]
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semi: 2
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semi-spacing: 2
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space-before-function-paren: [ 2, { "anonymous": "always", "named": "never" } ]
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space-in-parens: [ 2, never ]
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space-infix-ops: 2
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space-unary-ops: 2
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# Postponed
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#spaced-comment: [ 1, always, { exceptions: [ '/', '=' ] } ]
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strict: [ 2, global ]
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quotes: [ 2, single, avoid-escape ]
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quote-props: [ 1, 'as-needed', { "keywords": true } ]
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radix: 2
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use-isnan: 2
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valid-typeof: 2
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yoda: [ 2, never, { "exceptRange": true } ]
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#
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# es6
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#
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arrow-body-style: [ 1, "as-needed" ]
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arrow-parens: [ 1, "as-needed" ]
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arrow-spacing: 2
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constructor-super: 2
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generator-star-spacing: [ 2, {"before": false, "after": true } ]
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no-class-assign: 2
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no-confusing-arrow: [ 1, { allowParens: true } ]
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no-const-assign: 2
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#no-constant-condition: 2
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no-dupe-class-members: 2
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no-this-before-super: 2
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# Postponed
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#no-var: 2
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object-shorthand: 1
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# Postponed
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#prefer-arrow-callback: 1
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# Postponed
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#prefer-const: 1
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#prefer-reflect
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#prefer-spread
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# Postponed
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#prefer-template: 1
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require-yield: 1

‎.gitignore

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.pioenvs
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.piolibdeps
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.clang_complete
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.gcc-flags.json
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node_modules/
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package-lock.json
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.vscode/.browse.c_cpp.db*
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.vscode/c_cpp_properties.json
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.vscode/launch.json
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.vscode/settings.json

‎.travis.yml

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# Continuous Integration (CI) is the practice, in software
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# engineering, of merging all developer working copies with a shared mainline
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# several times a day < http://docs.platformio.org/page/ci/index.html >
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#
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# Documentation:
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#
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# * Travis CI Embedded Builds with PlatformIO
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# < https://docs.travis-ci.com/user/integration/platformio/ >
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#
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# * PlatformIO integration with Travis CI
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# < http://docs.platformio.org/page/ci/travis.html >
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#
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# * User Guide for `platformio ci` command
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# < http://docs.platformio.org/page/userguide/cmd_ci.html >
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#
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#
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# Please choice one of the following templates (proposed below) and uncomment
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# it (remove "# " before each line) or use own configuration according to the
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# Travis CI documentation (see above).
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#
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#
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# Template #1: General project. Test it using existing `platformio.ini`.
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#
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# language: python
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# python:
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# - "2.7"
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#
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# sudo: false
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# cache:
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# directories:
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# - "~/.platformio"
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#
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# install:
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# - pip install -U platformio
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# - platformio update
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#
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# script:
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# - platformio run
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#
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# Template #2: The project is intended to by used as a library with examples
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#
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# language: python
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# python:
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# - "2.7"
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#
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# sudo: false
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# cache:
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# directories:
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# - "~/.platformio"
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#
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# env:
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# - PLATFORMIO_CI_SRC=path/to/test/file.c
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# - PLATFORMIO_CI_SRC=examples/file.ino
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# - PLATFORMIO_CI_SRC=path/to/test/directory
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#
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# install:
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# - pip install -U platformio
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# - platformio update
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#
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# script:
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# - platformio ci --lib="." --board=ID_1 --board=ID_2 --board=ID_N

‎.vscode/extensions.json

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{
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// See http://go.microsoft.com/fwlink/?LinkId=827846
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// for the documentation about the extensions.json format
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"recommendations": [
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"platformio.platformio-ide"
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]
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}

‎LICENSE

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Copyright (c) 2018 by authors.
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Permission is hereby granted, free of charge, to any person
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obtaining a copy of this software and associated documentation
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files (the "Software"), to deal in the Software without
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restriction, including without limitation the rights to use,
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copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the
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Software is furnished to do so, subject to the following
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conditions:
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The above copyright notice and this permission notice shall be
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included in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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OTHER DEALINGS IN THE SOFTWARE.

‎README.md

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Grinder speed control with stable RPM
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=====================================
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[![Gitter chat](https://badges.gitter.im/speedcontrols/ac_sc_grinder.svg)](https://gitter.im/speedcontrols/ac_sc_grinder)
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__WORK IN PROGRESS !!!__
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> Advanced speed control for grinder AC brushed motor. With RPM stabilization
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> via Back EMF measure. Replacement for default board.
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Notes! Due size restrictions, it's impossible to create universal PCB.
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We prepeared PCB for `Hilda 180W` - it's very popular and cheap. Boards for
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other grinder models are left to volunteers.
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### Required components
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1. [Hilda 180W](https://www.aliexpress.com/wholesale?SearchText=hilda+180w).
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Regulator is not restricted for this tool, but existing PCB layout is for
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this grinder model. Also, firmware config defaults are for it's motor's power.
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2. Go to [EasyEda project page](https://easyeda.com/speed/AC-speed-control-for-grinder)
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- Order PCB
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- Order details from BOM. We already prepeared links to LCSC for your
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convenience. It's not the cheapest in the wold, but good enougth. You
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may find nice to buy all details in one place and join delivery to
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single package.
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3. Get additional details, not included into BOM:
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- [Cheap stlink programmer](https://www.aliexpress.com/af/stlink-stm32.html?jump=afs)
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for stm32 devices (only 2$).
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- [Plastik 70 CRC](https://www.google.com/search?q=Plastik+70+CRC) or any
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other acrylic protective coating. We strongly recommend to protect PCB
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from aspirated dust
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- [male](https://www.aliexpress.com/item/100pcs-2-8-Inserts-Plug-Spring-Terminal-PCB-Solder-lug-thickness-0-8-one-legs-PCB/32702011692.html) &
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[female](https://www.aliexpress.com/item/100pcs-lot-2-8-insulated-terminal-with-0-5-0-8-male-insert-brass-color-connectors/32593170276.html) 2.8mm power terminals (optional - you can solder wires directly)
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4. Extract some components from native grinder board:
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- Speed potentiometer with wheel.
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- Terminal pins for motor contacts.
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- AC filtering capacitor (0.1uF 275v). It's not drawn on schematics, solder
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it after board assembly to AC power pins.
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## Building hardware
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1. Assemble PCB.
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2. Flash firmware.
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3. Test that it works.
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4. Cover PCB with protective coating.
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## How to flash firmware
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**WARNING! You MUST unplug power cord prior to flash firmware.** Turning power off
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via grinder switch is not enougth. If you plug programmator into computer
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while AC plug in power socket, your USB interface may be damaged!
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1. Install PlatformIO IDE. Follow instructions [here](http://docs.platformio.org/en/latest/ide/pioide.html).
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We use PIO for Atom, but PIO for VSCode should be ok too.
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- Make sure you've [installed](http://docs.platformio.org/en/latest/installation.html#troubleshooting)
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udev rules (linux) or device drivers (windows).
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2. Clone this repo or download via zip archive.
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3. Optionally, edit defaults in `/src/config_map.h`, but defaults should be ok.
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We recommend to skip this step.
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4. Open this project in installed IDE.
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5. Open `PlatformIO` -> `Terminal` -> `New Terminal`
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Now type this commands in terminat window:
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```bash
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pio run --target upload
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```
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## Development
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Everything is done in `PlatformIO`. If you wish to update conig and regenerate
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headers, you may need `node.js` and run `npm run config`.
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Note, this PCB has no AC isolation! That's ok for normal operation, because
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board is placed inside isolated case. But if you plan to debug firmware via USB,
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you MUST use [USB isolator](https://ru.aliexpress.com/wholesale?SearchText=USB+isolator)
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module.
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## License
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MIT.

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