Schematics

1
1
2
2
3
3
4
4
D D
C C
B B
A A
Title
Number RevisionSize
A4
Date: 8/23/2022 Sheet of
File: I:\wsx\..\51547RX-R.SchDoc Drawn By:
VCC1
1
INA1
2
INB1
3
VDD1
4
VCC2
5
INA2
6
INB2
7
VDD2
8
OUTB2
9
AGND2
10
PGND1
11
OUTA1
12
OUTB1
13
AGND1
14
PGND1
15
OUTA1
16
U4
MX1919H-SOP16
VCC
VCC
C5
104
A
-
+
MG1
F/B MOT
C6
104
A
-
+
MG2
R/L MOT
VDD 3.3V
VDD 3.3V
Y1
16M
BACK
LEFT
RIGHT
FORWARD
VDD 3.3VC1
104
L1
2.2NH
C1 0.5PF
ANT
BACK
LEFT
RIGHT
FORWARD
C8
104
BAT
7.4V
VDD 3.3V
+
CE2
470UF
C9
104
R2
10\R
Vin
1
GND
2
Vout
3
U3B7333
+
CE1
470uF
R3
100R
AUDP
4
AUDN
2
VDD
3
VPP/H3
5
VSS
1
IOA0
6
IOA1
7
IOA2
8
U2
GPC74P80/48/32/16/8C
C3
226
SPK1
SPEAKER
LINE
SPRAYER CONCTROL
LINE
R1
10k
LED2
R5
1k
LED1
R4
1k
VCC
VCC 3.3V
S1
SW 2X3
TryMe
TryMe
S2
SW-PB
C8
104
VCC 3.3V
+
CE2
470UF
C9
104
R2
10\R
Vin
1
GND
2
Vout
3
U3A6206
+
CE1
470uF
R6
100R
GND
1
VDD
2
XC1
3
XC2
4
VDD
5
PA7
6
PA5/PRSTB
8
PA6
7
PB7/A
9
PA3/A
10
PA4/A
11
PA0/A
12
PB0
13
PB1/A
14
GND
15
ANT
16
U1
XC2345B
LED3
51547RX
R7
1K
MOSFET P
R8
10K
VCC
25/800uH
Inductor
SPRAYER
SPRAYER CONCTROL
BAT
7.5V
VCC
D1
Diode
TRY ME: Battery 7.5V (1.5
x 5 = 7.5V button cell
batteries)
N
ormal: Battery 7.4V
(7.4 x 1= 7.4V Li-ion
polymer batteries)