We use QQmb platform for this project. We experienced some difficulties with connection QQmb 4G module to the large LCD panel, but we solved it using MIPI-LVDS converter extra board.
Software
Hardware
•Android 8.0 with hardware drivers •Dispenser unit controller •User and admin app •Content management system •Analytics
•Mediatek MT6765, RAM 2GB, ROM 16GB •IPS matrix 1920*1080 •21,5 inch LCD with multitouch panel •LTE/3G/GPRS connectivity •WIFI 802.11 a/b/g/n, BT 4.1 •Bluetooth 5.0 •6 x USB 2.0, Ethernet •Camera, stereo speakers, mic (optional)