Illuminance Meter

Outline Specification

• Illumination is displayed on the LCD by level indication.
• The range of the illumination which can be indicated is "-4 to 4".

Function of MCU

Using the sample code of the illuminance meter, you can understand the following MCU's function and the application.

• How to make the cycle of 10ms in the of the .
• How to convert analog voltage to digital data by .

Hardware

This sample code operates by the , , and an .

• For those who create an extension board yourself, please refer to the extension board circuit diagram and table of the parts which appeared in the "Illuminance Meter " from the "Downloads" below.
• For purchase of the extension board, click here.

How To Use

1. Connect the extension board and E8 emulator / E8a emulator to the CPU board.
2. Start and download the sample code on the CPU board. For more details, open the "Illuminance Meter Application Note" file of the "Downloads" below, and look at "6. .
3. When pushing the "Start after Reset" icon of the High-performance Embedded Workshop, the "LIGHT ADJUST" is displayed on the LCD for the first five seconds. The illumination, "LIGHT LEVEL **" at the time, will be indicated in five seconds.
4. When covering the U2 (illumination sensor) of the extension board, the illumination changes.