Schematics
1 2 3 4
B
C
D
654321
D
C
B
A
R19
47K
R18
10K
BatDet
SX
SX
R22
1M
VCC
VCC
C13
104P
2.8V
GND
E
Vi
B
Vo
C
U12.8V
C14
104P
C19
106P
LED2
R7
1K
LED
R5
200R
VCC
R4
200R
R3
200R LED1
LED
C20
106P
M1
C11
104 P
C18
106 P
VDD
8
GND
7
GND
6
GND
5
CLK
4
SDA
3
VCC
2
GND
1
2.8V
2.8V
CSDA
CSCL
Q1
8050
C5 104P
M2
12
M1
MOTOR
R12
10K
R25
2.2M
KS2
1 2
M2
MOTOR
C4
104P
R13
10K
R24
2.2M
R20
1M
BatDet
M1
M4
M2
M3
CSCL
CSDA
KS2
KS1
LED
KEY
U2
R10 2.7K
CSDA
CSCL
2.8V
R11
2.7K
2.8V
C12
104P
C17
225P
VCC
CSN
1
2
3
4
5
6
7
8
9
10 11
12
13
14
15
16
17
18
19
20
51F003 U7
RST
DAT
2.8V
CSN
CSCL
CSDA
ANT
R11
510R
C2
33pF
C3
33pF
2
1
3
4
Y1
16MHZ
2.8V
1
2
3
4 5
6
7
8
297L
C15
104P
U4
C1
3P
1
2
3
4 5
6
7
8
9926
U5
BATT
M3
C7
104P
M4
12
M3
MOTOR
R14
10K
R26
2.2M
KS1
1 2
M4
MOTOR
C6
104P
R15
10K
R27
2.2M
R21
1M
1
2
3
4 5
6
7
8
9926
U6
BATT
R1
100R
GCSN
Q2
8050
R8
1K
KEY
Q4
2301
K1
SW-PB
VCC
BATT
R17
10K
R23
1M
Q3
8550
R16
10K
BATT
1
2
3
J?
CON3
MIOS
1
2
3
4
5 6 7 8
9
10
11
12
13141516
U3
216
GCSN
MIOS
D1
2V
R2
100R
SX