Schematics

5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
BT
LED
AMP
IR
R_LED
B_LED
LOUT
BT_OSCI BT_OSCO
VCC
IR
BAT
B_LED
BT_OSCO
VCC
VCOM
LOUT
G_LED
R_LED
BT_OSCI
IR
W_LED
R
G
B
G_LED W_LED
BAT
VCC BAT VCOM
BAT
BAT
R10
4.7R
LED15
WLED
R1 10K
Y1
24M
1
2
4
3
R2 51K
LED14
WLED
LED8
IR1
1
2
3
C5 105
LED16
WLED
Q1
8050
C1
105
LED6
LED18
WLED
R7
6.8R
C3
105
LED7
LED19
WLED
Q3
8050
LED10
WLED
C2
105
LED2 LED5
8002D
U1
3
4
5
1
8
2
67
3
4
5
1
8
2
67
C4 393
LED11
WLED
R6
3.3R
C6 106
SPK1
1
2
R8
3.3R
LED3 LED17
LED12
WLED
Q4
8050
U2
AC6969E
12
6
11
10
5
4
9
8
7
13
142
16
3
1 15
ADC3/ADC13/PA4/USBDP
BT_RF
ADC14/USBDM
VSSIO
PB0
PB1/ADC5
PB7/ADC9
BT_OSCO
BT_OSCI
ADC1/MIC/PA1
DACVSSVBAT
DACL
VDDIO
LDO_IN/PB5 VCOM
LED9
WLED
LED4
R9
4.7R
LED13
WLED
Q2
8050
LED20LED1
BT_ANT
1