module ZephRay;

于是呢, 飞线完成, 顺便弄了个小盒子

手头囤了那么多液晶屏总得用点掉，做个啥子好呢？要不做个PDA吧，是的，一切定位不明的制作都能用PDA糊弄过去。

首先拿出洞洞板稍微比划下，嗯，4*4按键，加个横向的液晶屏

SZAX (a LCD module reseller) was giving away some LCD screens (without documentation). So I got them at the price of shipping. And… here it is.

I bought these screens some while ago. The small one have integrated controller while the bigger one doesn’t. Both were sold for $1.5 each.

The integrated controller on the small one is UC1698U, which is a CSTN controller instead of a STN controller. This do cause some trouble, since every pixel in the controller map to three pixels on the screen.

Sorry for the image quality, I should have waited till morning to take the photo.

Read more if you want to see the reverse engineered pinouts and driver source code (possibly useless).

This screen was given to me from Grassmover. But I havn't played with it since then. I tried to drive it last night, and found out that the VEE is wrong (3.xV), it should be a negative voltage. Then I found the inductor was broken, so I replaced one. Now it is working correctly except for one missing line.