add ProtoThreads librarys

Signed-off-by: ziyi.wang <jacks808@163.com>
modify readmetxt 
add protothreads

Signed-off-by: ziyi.wang <jacks808@163.com>
add .gitignore 

Signed-off-by: ziyi.wang <jacks808@163.com>
package all example for ProtoThreads in example.tar.gz

Signed-off-by: ziyi.wang <jacks808@163.com>
add ArduinoTestSuite

Signed-off-by: ziyi.wang <jacks808@163.com>
add chip.txt for record chip number and function

Signed-off-by: ziyi.wang <jacks808@163.com>
add lcd SMC1602A.pdf

Signed-off-by: ziyi.wang <jacks808@163.com>
modify ProtoThreads1.4 to ProtoThreads1_4 for support arduino IDE

Signed-off-by: ziyi.wang <jacks808@163.com>
Signed-off-by: ziyi.wang <jacks808@163.com>
Signed-off-by: ziyi.wang <jacks808@163.com>
Merge branch 'dev'
Merge branch 'dev-laptops' into dev
add dht.h library

Signed-off-by: ziyi.wang <jacks808@163.com>
modify readme.txt

Signed-off-by: ziyi.wang <jacks808@163.com>
add comment for DHT11 read function

Signed-off-by: ziyi.wang <jacks808@163.com>