UM10744
OM13500 & OM13500A, PCA9620 & PCx8537 demo board
Rev. 1 — 23.September 2013
User manual
Document information
Info
Content
Keywords
LCD, Liquid Crystal Display, LCD driver, segment driver, PCA9620,
PCF8537, PCA8537, LPCXpresso, Vertical Alignment (VA)
Abstract
The OM13500 is an LCD demo board which can be used to demonstrate
and evaluate the PCA9620 segment driver. The OM13500A is the same
board, but instead of PCA9620, PCA8537 is mounted. The latter has a
reduced number of segment outputs and therefore is not able to drive all
display elements of the display on the board. The only affected part is the
dot matrix area on the display.
The board is controlled by an LPCXpresso micro controller board, which
contains the LPC1115, a Cortex M0 controller. A free IDE can be
downloaded in order to modify the software.
Supply of the board can be via two AA batteries, an AC adapter or USB.