CEDIA Expo 2021: Vestaboard Showcases Smart Messaging Display with App-Controlled Message Automation September 8, 2021 | Home / September 8, 2021 rave-video / CEDIA Expo 2021: Vestaboard Showcases Smart Messaging Display with App-Controlled Message Automation CEDIA Expo 2021: Vestaboard Showcases Smart Messaging Display with App-Controlled Message Automation