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@@ -107,6 +107,9 @@ Now it's time to solder the 2X4 2.54 male headers to the e-Ink displays. The cho
 You have done it; all parts are on the main PCB now! Before we continue to build the clock together we first want to test the displays, so it's time to upload the software to the Wemos S3 Mini. 
 
 To do this we need [Visual Studio Code](https://code.visualstudio.com/Download), [node.js](https://nodejs.org/en/download) and [yarn](https://classic.yarnpkg.com/lang/en/docs/install/#windows-stable). 
+
+Also you will need the [PlatformIO IDE for Visual Studio Code](https://platformio.org/install/ide?install=vscode)
+
 Please follow the installation instructions before you continue. 
 
 When you successfully installed VSC (Visual Studio Code) follow the following steps to upload the code to the Wemos S3 Mini.