Users Manual
http://heltec.taobao.com 
www.heltec.cn 
Technical Data 
V1.0 
P 6 / 9 
dec 2018 
HelTec Automation © Limited standard files 
wrong model may lead to compile errors. As shown in Figure 2-2: 
Figure 2-2 Directly available routines 
For more information of this product, please visit http://www.heltec.cn/support/. 










