Schematics
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
D D
C C
B B
A A
1
BAT+
1
BAT-
C1
C-106-0805
C10
C-104-0603
C12
C-106-0805
C3
C-104-0603
GND
3V
3.3V
L1
10uH
GND
1
LX
3
VOUT
2
U1 HT7733
D1
SS34
C8
C-104-0603
3.3V
GND
RST
3.3V
P3.0
P3.1
GND
R10
R-10K-0603
1
2
3
4
+
J2
CON-4*2
NC
32
P1.0/CCP1/ADC0
1
P1.1/CCP0/ADC1
2
P1.2/CMPO/SS/ECI/ADC2
3
P1.3/MOSI/ADC3
4
P1.4/MISO/ADC4
5
P1.5/SCLK/ADC5
6
P1.6/MCLKO_2/XTALO/RxD_3/ADC6
7
P1.7/XTALI/TxD_3/ADC7
8
P5.4/RST/MCLKO/CMP-
9
VCC
10
P5.5/CMP+
11
GND
12
P3.0/RxD/INT4/T2CLKO
13
P3.1TxD/T2
14
P3.2/INT0
15
P3.3/INT1
16
T0/ECI_2/P3.4
17
T0CLKO/CCP0_2/P3.5
18
INT2/RxD_2/CCP1_2/P3.6
19
INT3/TxD_2/CCP2_2/CCP2/P3.7
20
RSTOUT_LOW/P2. 0
21
SCLK_2/P2.1
22
MISO_2/P2.2
23
MOSI_2/P2.3
24
SS _2/ E CI_3/P2.4
25
CCP0_3/P2.5
26
CCP1_3/P2.6
27
CCP2_3/P2.7
28
N C
29
N C
30
N C
31
STC 15W 408 AS-TQFP 32
IC1
STC15W408 AS
L2
L0
L1
TX D
RXD
RST
3.3V GND
C9
C-1 0 4-0603
P3.0
P3.1
H1
H2
LA MP
PWSW
STAT
BG
H 3
12
LED 1
LED -1206
B
1
C
3
E
2
Q 3
2N 5551
R21
R-10K -0603
3.3V
G N D
LA MP
R20
R-510R-0603
R15
R-27R-0603
3.3V
B
1
C
3
E
2
Q 4
2N 5551
R22
R-1K-0603
G N D
R23
R-10K -0603
BG
R14
R-27R-0603
R17
R-27R-0603
R18
R-27R-0603
R19
R-27R-0603
1 2
H L1
LED - -
H 1 H 2 H 3
R1
R-510R-0603
R2
R-510R-0603
L0
L1
S1
SW-GZP
R3
R- 510R- 0603
L2
S2
SW-GZP
S3
SW-GZP
S4
SW-GZP
S5
SW-GZP
S6
SW-GZP
S7
SW-GZP
S8
SW-GZP
S9
SW-GZP
GND
PWSW
3.3V
BT_3. 3V
R11
R-10K -0603
R16
R-10K -0603
R12
R-2K2-0603
R13
R-2K2-0603
B
1
C
3
E
2
Q 2
2N 5551
D
3
G
1
S
2
Q 1
FDN338P
8258
BT_3. 3V
G N D
S WS
TXD
RX D
S TA T
PD2
1
PD3
2
PD4
3
PD7
4
PA0
5
PA1
6
TX
7
RX
8
V CC
9
G N D
10
PB 6
13
PB 7
14
PC 0
15
N C
16
PC 2
17
PC 4
18
RES ET
19
G N D
20
WLT8258-Master
VCC
21
PB5
12
PB4
11
SWS
22
GND
23
RX
24
TX
25
PC1
26
IC2 WLT8258-Mast e r-HJ
R4 R-1K -0603
R5 R-1K -0603
R6 R-2K 2-0603
C5
C-104-0603
BT_3.3V
SWS
G N D
1
2
3
+
J1
CO N -3*2. 54
1 2
H L2
LED - -
1 2
H L3
LED - -
1 2
H L4
LED - -
C2
C-106-0805
C7
C-106-0805
C6
C-106-0805
C4
C-106-0805
C11
C-106-0805
C13
C-106-0805