Here's a link to the code. Using it for a school project, copied from the website we're using to build the robotic arduino arm.
https://howtomechatronics.com/download/arduino-robot-arm-control-mit-app-inventor-project-file/
Here's a link to the code. Using it for a school project, copied from the website we're using to build the robotic arduino arm.
https://howtomechatronics.com/download/arduino-robot-arm-control-mit-app-inventor-project-file/
Are you trying to use Bluetooth with an ios phone? It is available and working for Android but not ios yet according to this: