diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..acd4004 --- /dev/null +++ b/.gitignore @@ -0,0 +1,483 @@ +## Ignore Visual Studio temporary files, build results, and +## files generated by popular Visual Studio add-ons. +## +## Get latest from `dotnet new gitignore` + +# dotenv files +.env + +# User-specific files +*.rsuser +*.suo +*.user +*.userosscache +*.sln.docstates + +# User-specific files (MonoDevelop/Xamarin Studio) +*.userprefs + +# Mono auto generated files +mono_crash.* + +# Build results +[Dd]ebug/ +[Dd]ebugPublic/ +[Rr]elease/ +[Rr]eleases/ +x64/ +x86/ +[Ww][Ii][Nn]32/ +[Aa][Rr][Mm]/ +[Aa][Rr][Mm]64/ +bld/ +[Bb]in/ +[Oo]bj/ +[Ll]og/ +[Ll]ogs/ + +# Visual Studio 2015/2017 cache/options directory +.vs/ +# Uncomment if you have tasks that create the project's static files in wwwroot +#wwwroot/ + +# Visual Studio 2017 auto generated files +Generated\ Files/ + +# MSTest test Results +[Tt]est[Rr]esult*/ +[Bb]uild[Ll]og.* + +# NUnit +*.VisualState.xml +TestResult.xml +nunit-*.xml + +# Build Results of an ATL Project +[Dd]ebugPS/ +[Rr]eleasePS/ +dlldata.c + +# Benchmark Results +BenchmarkDotNet.Artifacts/ + +# .NET +project.lock.json +project.fragment.lock.json +artifacts/ + +# Tye +.tye/ + +# ASP.NET Scaffolding +ScaffoldingReadMe.txt + +# StyleCop +StyleCopReport.xml + +# Files built by Visual Studio +*_i.c +*_p.c +*_h.h +*.ilk +*.meta +*.obj +*.iobj +*.pch +*.pdb +*.ipdb +*.pgc +*.pgd +*.rsp +# but not Directory.Build.rsp, as it configures directory-level build defaults +!Directory.Build.rsp +*.sbr +*.tlb +*.tli +*.tlh +*.tmp +*.tmp_proj +*_wpftmp.csproj +*.log +*.tlog +*.vspscc +*.vssscc +.builds +*.pidb +*.svclog +*.scc + +# Chutzpah Test files +_Chutzpah* + +# Visual C++ cache files +ipch/ +*.aps +*.ncb +*.opendb +*.opensdf +*.sdf +*.cachefile +*.VC.db +*.VC.VC.opendb + +# Visual Studio profiler +*.psess +*.vsp +*.vspx +*.sap + +# Visual Studio Trace Files +*.e2e + +# TFS 2012 Local Workspace +$tf/ + +# Guidance Automation Toolkit +*.gpState + +# ReSharper is a .NET coding add-in +_ReSharper*/ +*.[Rr]e[Ss]harper +*.DotSettings.user + +# TeamCity is a build add-in +_TeamCity* + +# DotCover is a Code Coverage Tool +*.dotCover + +# AxoCover is a Code Coverage Tool +.axoCover/* +!.axoCover/settings.json + +# Coverlet is a free, cross platform Code Coverage Tool +coverage*.json +coverage*.xml +coverage*.info + +# Visual Studio code coverage results +*.coverage +*.coveragexml + +# NCrunch +_NCrunch_* +.*crunch*.local.xml +nCrunchTemp_* + +# MightyMoose +*.mm.* +AutoTest.Net/ + +# Web workbench (sass) +.sass-cache/ + +# Installshield output folder +[Ee]xpress/ + +# DocProject is a documentation generator add-in +DocProject/buildhelp/ +DocProject/Help/*.HxT +DocProject/Help/*.HxC +DocProject/Help/*.hhc +DocProject/Help/*.hhk +DocProject/Help/*.hhp +DocProject/Help/Html2 +DocProject/Help/html + +# Click-Once directory +publish/ + +# Publish Web Output +*.[Pp]ublish.xml +*.azurePubxml +# Note: Comment the next line if you want to checkin your web deploy settings, +# but database connection strings (with potential passwords) will be unencrypted +*.pubxml +*.publishproj + +# Microsoft Azure Web App publish settings. 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Visual Studio LightSwitch build output +**/*.HTMLClient/GeneratedArtifacts +**/*.DesktopClient/GeneratedArtifacts +**/*.DesktopClient/ModelManifest.xml +**/*.Server/GeneratedArtifacts +**/*.Server/ModelManifest.xml +_Pvt_Extensions + +# Paket dependency manager +.paket/paket.exe +paket-files/ + +# FAKE - F# Make +.fake/ + +# CodeRush personal settings +.cr/personal + +# Python Tools for Visual Studio (PTVS) +__pycache__/ +*.pyc + +# Cake - Uncomment if you are using it +# tools/** +# !tools/packages.config + +# Tabs Studio +*.tss + +# Telerik's JustMock configuration file +*.jmconfig + +# BizTalk build output +*.btp.cs +*.btm.cs +*.odx.cs +*.xsd.cs + +# OpenCover UI analysis results +OpenCover/ + +# Azure Stream Analytics local run output +ASALocalRun/ + +# MSBuild Binary and Structured Log +*.binlog + +# NVidia Nsight GPU debugger configuration file +*.nvuser + +# MFractors (Xamarin productivity tool) working folder +.mfractor/ + +# Local History for Visual Studio +.localhistory/ + +# Visual Studio History (VSHistory) files +.vshistory/ + +# BeatPulse healthcheck temp database +healthchecksdb + +# Backup folder for Package Reference Convert tool in Visual Studio 2017 +MigrationBackup/ + +# Ionide (cross platform F# VS Code tools) working folder +.ionide/ + +# Fody - auto-generated XML schema +FodyWeavers.xsd + +# VS Code files for those working on multiple tools +.vscode/* +!.vscode/settings.json +!.vscode/tasks.json +!.vscode/launch.json +!.vscode/extensions.json +*.code-workspace + +# Local History for Visual Studio Code +.history/ + +# Windows Installer files from build outputs +*.cab +*.msi +*.msix +*.msm +*.msp + +# JetBrains Rider +*.sln.iml +.idea/ + +## +## Visual studio for Mac +## + + +# globs +Makefile.in +*.userprefs +*.usertasks +config.make +config.status +aclocal.m4 +install-sh +autom4te.cache/ +*.tar.gz +tarballs/ +test-results/ + +# content below from: https://github.com/github/gitignore/blob/main/Global/macOS.gitignore +# General +.DS_Store +.AppleDouble +.LSOverride + +# Icon must end with two \r +Icon + + +# Thumbnails +._* + +# Files that might appear in the root of a volume +.DocumentRevisions-V100 +.fseventsd +.Spotlight-V100 +.TemporaryItems +.Trashes +.VolumeIcon.icns +.com.apple.timemachine.donotpresent + +# Directories potentially created on remote AFP share +.AppleDB +.AppleDesktop +Network Trash Folder +Temporary Items +.apdisk + +# content below from: https://github.com/github/gitignore/blob/main/Global/Windows.gitignore +# Windows thumbnail cache files +Thumbs.db +ehthumbs.db +ehthumbs_vista.db + +# Dump file +*.stackdump + +# Folder config file +[Dd]esktop.ini + +# Recycle Bin used on file shares +$RECYCLE.BIN/ + +# Windows Installer files +*.cab +*.msi +*.msix +*.msm +*.msp + +# Windows shortcuts +*.lnk + +# Vim temporary swap files +*.swp +.codex \ No newline at end of file diff --git a/EinkScreen.csproj b/EinkScreen.csproj new file mode 100644 index 0000000..745409d --- /dev/null +++ b/EinkScreen.csproj @@ -0,0 +1,15 @@ + + + + Exe + net10.0 + enable + enable + + + + + + + + diff --git a/EinkScreen.sln b/EinkScreen.sln new file mode 100644 index 0000000..3e259b4 --- /dev/null +++ b/EinkScreen.sln @@ -0,0 +1,24 @@ +Microsoft Visual Studio Solution File, Format Version 12.00 +# Visual Studio Version 17 +VisualStudioVersion = 17.5.2.0 +MinimumVisualStudioVersion = 10.0.40219.1 +Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "EinkScreen", "EinkScreen.csproj", "{5398CEC9-64F5-9F19-11AE-1640399CECA8}" +EndProject +Global + GlobalSection(SolutionConfigurationPlatforms) = preSolution + Debug|Any CPU = Debug|Any CPU + Release|Any CPU = Release|Any CPU + EndGlobalSection + GlobalSection(ProjectConfigurationPlatforms) = postSolution + {5398CEC9-64F5-9F19-11AE-1640399CECA8}.Debug|Any CPU.ActiveCfg = Debug|Any CPU + {5398CEC9-64F5-9F19-11AE-1640399CECA8}.Debug|Any CPU.Build.0 = Debug|Any CPU + {5398CEC9-64F5-9F19-11AE-1640399CECA8}.Release|Any CPU.ActiveCfg = Release|Any CPU + {5398CEC9-64F5-9F19-11AE-1640399CECA8}.Release|Any CPU.Build.0 = Release|Any CPU + EndGlobalSection + GlobalSection(SolutionProperties) = preSolution + HideSolutionNode = FALSE + EndGlobalSection + GlobalSection(ExtensibilityGlobals) = postSolution + SolutionGuid = {50806FA3-C95F-422C-B3D6-377762AEA08C} + EndGlobalSection +EndGlobal diff --git a/Program.cs b/Program.cs new file mode 100644 index 0000000..6f236f9 --- /dev/null +++ b/Program.cs @@ -0,0 +1,220 @@ +using System.Diagnostics; +using System.Globalization; +using System.Text.Json; +using System.Text.RegularExpressions; +using SkiaSharp; + +const int Width = 250; +const int Height = 122; +const int SensorBottom = 44; +const int DetailsTop = 75; +const int LeftPaneRight = 126; +const int RightPaneLeft = 127; +const string OutputPath = "output.png"; +const float LineSpacing = -3; +const string LocationCode = "14104"; +const string SensorReadingsUrl = "http://10.16.1.100:8016/odata/SensorReadings?$orderby=Ts%20desc&$top=1&$select=TemperatureC,HumidityRh"; +const string ReadyUrl = "http://10.16.1.100:8016/health/ready"; + +using var bitmap = new SKBitmap(Width, Height, SKColorType.Bgra8888, SKAlphaType.Premul); +using var canvas = new SKCanvas(bitmap); + +canvas.Clear(SKColors.White); + +using var textPaint = new SKPaint +{ + Color = SKColors.Black, + IsAntialias = true +}; + +using var typeface = SKTypeface.Default; +using var sensorFont = new SKFont(typeface, 40); +using var weatherFont = new SKFont(typeface, 21); +using var statusFont = new SKFont(typeface, 27); +using var dateFont = new SKFont(typeface, 14); +using var timeFont = new SKFont(typeface, 23); + +var currentSensor = await GetCurrentSensor(); +var weatherForecast = await GetWeatherForecast(); +using var statusHttpClient = new HttpClient(); +var statusText = (await statusHttpClient.GetStringAsync(ReadyUrl)).Trim(); +var now = DateTime.Now; +var date = now.ToString("yyyy-MM-dd", CultureInfo.InvariantCulture); +var time = now.ToString("HH:mm", CultureInfo.InvariantCulture); + +DrawTextFit(canvas, currentSensor, sensorFont, textPaint, new SKRect(0, 0, Width, SensorBottom), SKTextAlign.Center); +DrawTextFit(canvas, weatherForecast, weatherFont, textPaint, new SKRect(0, SensorBottom, Width, DetailsTop), SKTextAlign.Center); +DrawTextFit(canvas, statusText, statusFont, textPaint, new SKRect(0, DetailsTop, LeftPaneRight, Height), SKTextAlign.Center); +DrawTextStack( + canvas, + [(date, dateFont), (time, timeFont)], + textPaint, + new SKRect(RightPaneLeft, DetailsTop, Width, Height), + SKTextAlign.Center, + LineSpacing); + +using var image = SKImage.FromBitmap(bitmap); +using var data = image.Encode(SKEncodedImageFormat.Png, 100); + +if (data is null) +{ + Console.Error.WriteLine("SkiaSharp failed to encode the bitmap as PNG."); + return; +} + +var fullOutputPath = Path.GetFullPath(OutputPath); +await using (var fileStream = File.Create(fullOutputPath)) +{ + data.SaveTo(fileStream); +} + +Console.WriteLine($"Generated {fullOutputPath} ({Width}x{Height})."); + +var showImageScriptPath = Path.GetFullPath("show_image.py"); +using var showImageProcess = Process.Start(new ProcessStartInfo +{ + FileName = "python3", + ArgumentList = { showImageScriptPath, fullOutputPath }, + UseShellExecute = false +}); + +if (showImageProcess != null) +{ + await showImageProcess.WaitForExitAsync(); +} + +static void DrawTextFit( + SKCanvas canvas, + string text, + SKFont font, + SKPaint paint, + SKRect bounds, + SKTextAlign align) +{ + var originalSize = font.Size; + var measuredWidth = font.MeasureText(text); + + if (measuredWidth > bounds.Width) + { + font.Size = Math.Max(8, originalSize * bounds.Width / measuredWidth); + } + + var metrics = font.Metrics; + var x = align switch + { + SKTextAlign.Center => bounds.MidX, + SKTextAlign.Right => bounds.Right, + _ => bounds.Left + }; + var y = bounds.MidY - (metrics.Ascent + metrics.Descent) / 2; + + canvas.DrawText(text, x, y, align, font, paint); + font.Size = originalSize; +} + +static void DrawTextStack( + SKCanvas canvas, + IReadOnlyList<(string Text, SKFont Font)> lines, + SKPaint paint, + SKRect bounds, + SKTextAlign align, + float lineSpacing) +{ + var originalSizes = lines.Select(line => line.Font.Size).ToArray(); + + for (var i = 0; i < lines.Count; i++) + { + var line = lines[i]; + var measuredWidth = line.Font.MeasureText(line.Text); + + if (measuredWidth > bounds.Width) + { + line.Font.Size = Math.Max(8, line.Font.Size * bounds.Width / measuredWidth); + } + } + + var lineHeights = lines + .Select(line => + { + var metrics = line.Font.Metrics; + return metrics.Descent - metrics.Ascent; + }) + .ToArray(); + var totalHeight = lineHeights.Sum() + lineSpacing * Math.Max(0, lines.Count - 1); + var y = bounds.MidY - totalHeight / 2; + var x = align switch + { + SKTextAlign.Center => bounds.MidX, + SKTextAlign.Right => bounds.Right, + _ => bounds.Left + }; + + for (var i = 0; i < lines.Count; i++) + { + var line = lines[i]; + var metrics = line.Font.Metrics; + var baseline = y - metrics.Ascent; + + canvas.DrawText(line.Text, x, baseline, align, line.Font, paint); + y += lineHeights[i] + lineSpacing; + } + + for (var i = 0; i < lines.Count; i++) + { + lines[i].Font.Size = originalSizes[i]; + } +} + +static async Task GetCurrentSensor() +{ + using var httpClient = new HttpClient(); + using var stream = await httpClient.GetStreamAsync(SensorReadingsUrl); + using var json = await JsonDocument.ParseAsync(stream); + + var latest = json.RootElement.GetProperty("value").EnumerateArray().FirstOrDefault(); + var temp = latest.GetProperty("TemperatureC").GetDouble(); + var humidity = latest.GetProperty("HumidityRh").GetDouble(); + + return $"{temp:0}°C {humidity:0}%"; +} + +static async Task GetWeatherForecast() +{ + var forecastAfter = DateTime.UtcNow.ToString("yyyy-MM-ddTHH:mm:ssZ"); + var filter = Uri.EscapeDataString($"ForecastDt gt {forecastAfter} and LocationCode eq '{LocationCode}'"); + var url = $"http://10.16.1.100:8016/odata/Weather?$filter={filter}&$orderby=ForecastDt asc&$top=1&$select=ForecastDt,WeatherText,TemperatureC"; + + using var httpClient = new HttpClient(); + using var stream = await httpClient.GetStreamAsync(url); + using var json = await JsonDocument.ParseAsync(stream); + + var forecast = json.RootElement.GetProperty("value").EnumerateArray().FirstOrDefault(); + var temp = forecast.GetProperty("TemperatureC").GetDouble(); + var weatherText = forecast.GetProperty("WeatherText").GetString() ?? ""; + var weatherMatch = Regex.Match(weatherText, @"\(([^()]*)\)"); + var weather = weatherMatch.Success ? weatherMatch.Groups[1].Value : weatherText; + var forecastDt = forecast.GetProperty("ForecastDt").GetDateTimeOffset(); + var (low, high) = await GetDailyTemperatureRange(httpClient, forecastDt); + + return $"{low:0}~{high:0}°C {temp:0}°C {weather}"; +} + +static async Task<(double Low, double High)> GetDailyTemperatureRange(HttpClient httpClient, DateTimeOffset forecastDt) +{ + var dayStart = new DateTimeOffset(forecastDt.Year, forecastDt.Month, forecastDt.Day, 0, 0, 0, forecastDt.Offset); + var dayEnd = dayStart.AddDays(1); + var filter = Uri.EscapeDataString( + $"ForecastDt ge {dayStart.UtcDateTime:yyyy-MM-ddTHH:mm:ssZ} and ForecastDt lt {dayEnd.UtcDateTime:yyyy-MM-ddTHH:mm:ssZ} and LocationCode eq '{LocationCode}'"); + var url = $"http://10.16.1.100:8016/odata/Weather?$filter={filter}&$orderby=ForecastDt asc&$select=TemperatureC"; + + using var stream = await httpClient.GetStreamAsync(url); + using var json = await JsonDocument.ParseAsync(stream); + + var temperatures = json.RootElement + .GetProperty("value") + .EnumerateArray() + .Select(item => item.GetProperty("TemperatureC").GetDouble()) + .ToArray(); + + return (temperatures.Min(), temperatures.Max()); +} diff --git a/show_image.py b/show_image.py new file mode 100644 index 0000000..f0f0c01 --- /dev/null +++ b/show_image.py @@ -0,0 +1,33 @@ +#!/usr/bin/python3 +# -*- coding:utf-8 -*- +import sys +import time +import logging +from PIL import Image + +LIB_DIR = '/home/ubuntu/workplace/e-Paper/RaspberryPi_JetsonNano/python/lib' +sys.path.append(LIB_DIR) + +from waveshare_epd import epd2in13_V4 + +logging.basicConfig(level=logging.INFO) + + +def main(): + epd = epd2in13_V4.EPD() + epd.init() + + image = Image.open(sys.argv[1]).convert('1') + image = image.rotate(180) + + epd.display(epd.getbuffer(image)) + time.sleep(2) + epd.sleep() + + +if __name__ == '__main__': + try: + main() + except KeyboardInterrupt: + epd2in13_V4.epdconfig.module_exit(cleanup=True) + raise \ No newline at end of file