3nStar SC440 - 13. Long Press Button Description; Switching Communication Modes via Long Press; Initiating Update Programs via Long Press

13. Long Press Button Description
◆"Communication Mode" switches to the “Bluetooth SPP” mode
Pressing the button and hold for about 8 seconds, then release after a sound is heard.
◆"Communication Mode" switch to “Bluetooth BLE”mode
Pressing the button and hold for about 16 seconds, then release after a sound is heard.
◆“MCU and Bluetooth update” program
Pressing the button and hold for about 90 seconds, then release after a sound is heard, press the button 3 times quickly
within 10s.
(If the button is not pressed within 10 seconds, the system will automatically enter normal use mode.)
*Remarks
The third function is turned off by default.
Appendix III ASCII Table
BIN
DEC
HEX
COM
KEYBOARD
0000 0000
0
00
NUL
NULL
0000 0001
1
01
SOH
ENTER
0000 0010
2
02
STX
CAPS LOCK
0000 0011
3
03
ETX
NULL
0000 0100
4
04
EOT
NULL
0000 0101
5
05
ENQ
NULL
0000 0110
6
06
ACK
NULL
0000 0111
7
07
BEL
ENTER
0000 1000
8
08
BS
←
0000 1001
9
09
HT
TAB
0000 1010
10
0A
LF
↓
0000 1011
11
0B
VT
TAB
0000 1100
12
0C
FF
DELETE
0000 1101
13
0D
CR
ENTER
0000 1110
14
0E
SO
INSERT
0000 1111
15
0F
SI
ESCAPSE
0001 0000
16
10
DLE
F11
0001 0001
17
11
DC1
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