Meet ‘Yayagram’, the device created by a young man to communicate with his grandmother Posted byEntrepreneur en Español April 21, 2021 Leave a comment on Meet ‘Yayagram’, the device created by a young man to communicate with his grandmother The computer engineer Manuel Lucio presented his invention on Twitter, which consists of a curious device to facilitate communication with his grandmother and which he baptized as ‘Yayagram’.