LightKey Datasheet of 3.00 inch 5x7 Dot Matrix LE.
LD30057BPG - 3.00 inch 5x7 Dot Matrix LED Display
LightKey Datasheet of 3.00 inch 5x7 Dot Matrix LED Display LM30057A/B Series – 3.00 inch 5x7 Dot Matrix LED Display ATTENTION OBSERVE PRECAUTIONS F.