2022-07-26 00:00:00 This app is designed to make it easy for you to build a DIY arm robot. The app allows you to control an ESP32 based arm robot over Bluetooth, and also you can upload sketch/code directly from your Android phone to ESP32 via USB OTG. Please be advised that this app contains ads and potential in-app purchase to improve next app development. Info: To change lower and upper limit Step number, press and hold the Previous or Next icon button.