User guide

M80 EVB User Guide
M80_EVB_User_Guide_V1.2 - 38 -
3.9. Switches and buttons
Figure 40: Switches and buttons
Table 16: Switches and buttons
Part
Name
I/O
Description
Note
S1
VBAT
I
Control power supply via adaptor
S2
VCHG
I
Control charging if module has
charging function
S3
DOWNLOAD
I
Pulled to “ON” when downloading
firmware via USB
S4
PWRKEY
I
Pulled to “ON” when downloading
firmware via UART or USB
K1
PWRKEY
I
Turn on/off the module
K2
EMERG_OFF
I
Emergency button for shutting down
the module
S1
S2
S3
S4
K1
K2
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