Product Manual

IOT service supplier who understands you best
Location：Rm.1502,East Tower,FIYTA Tech. Bldg.,Southern District of High-tech Industrial
Park,Nanshan District,Shenzhen 518057,P.R.China
- 5 -
Note：Input voltage higher then VCC will destroy the module.
2.4 Soldering Reflow Guidelines
Form 4 and picture 2 are reflow conditions and profile.
Form4: Reflow conditions
Picture 2: Reflow profile
22
P20
Digital I/O
23
P0.21/NRESET
Digital I/O / Configurable as pin reset
24
SWCLK
Serial wire debug clock input for debug and programming
25
SWDIO
Serial wire debug I/O for debug and programming