Schematics

1 2 3 4
A
B
C
D
4
321
D
C
B
A
VDD3V
X1
16MHZ
PA3
PA4
PA6
PA3
R1
10K
PA4
PA6
VDD
1
PA6
2
PA5
3
PA3
4
PA4
5
XC2
6
XC1
7
ANT
8
GND
9
U1
2.4G TX ESOP8
PA5
560
560
PA6
ANT
C1
0.75PF
C2
0.75PF
L1
4.7NH
L2
1NH
R2
R3
C3
104
3V
VCC
SW1
SW-SPDT
RZ1
VDD3V
SW3 SW4
SW1 SW2
LED`1