Automatic light sensing arm lamp touch chip-dlt8sa15b-jericho

• The basic composition of the scheme

Nine touch buttons , Two indicators （ A timing , A sense of light ）, A sense of light , Two ways PWM output ;

• programme Product function

this paragraph Nine key five gear dimming three gear color temperate timing automatic light sensing boom lamp programme , Master chip acquisition use DLT8SA15B series touch chip , The package model is 20 Pin TSSOP, By designing the circuit , The following functions can be realized ：

（ One ）

1. The default shutdown state is when you power on for the first time ;
2. With non power down memory function , Memory brightness 、 Color temperature 、 Light mode ; 

3、 Light up for the first time 3000K, The brightness is 80%;

（ Two ） Key function

1、OFF/ON key → Short press , Switchgear

2、 Color temperature key → Short press , Third gear color temperature switching -3000K-4000K-5500K, When switching color temperature , Brightness remains

3、1-5 Dimming key → Short press , Fifth gear dimming -10%-30%-50%-70%-100%, Slide bar dimming 10%-100%

4、 Timing key → Short press ,60min Timing switch

A short press ,30min timing , meanwhile LED2 Light on

Short press twice ,60min timing ,LED2 The light stays on

Short press three times , Turn off timing , meanwhile LED2 destroy

5、 Light sensitive key → Short press , Switch automatic light sensing mode , When light mode is turned on , meanwhile LED1 Light on , Turn off the light sense , meanwhile LED1 The lamp

destroy

In light mode , Switchable color temperature , But not dimmable , When briefly pressing dimming , Light mode exits directly ;

• Product circuit diagram