2008/11/6 gardenyu : > Will you recommend any chip with good design > support somewhere? They recommend AY0438 because that is the only one Microchip has. Could you use PIC16F91x LCD PICs? There are other PICs with integrated LCD controller as well. Xiaofan -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist