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 / AllWiner •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)