Schematics

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D D
C C
B B
A A
DFR0816
lfwag-CD
Beetle-cm-32u4
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V0.2
2021/5/31
10:47:32
A4
FD1 FD2
10K
R8
A0
A1
A2
A3
A4
A5
D0/RX
D1/TX
D2/SDA
D3/SCL
D5
D6
D7
D12
D13
D14/MISO
D16/MOSI
D15/SCK
RXLED
HWB
TXLED
VOUT
VOUT
VOUT
VOUT
D8
D9
D11
VOUT
D10/CS1
D4/CS2
VCC1
34
GND3
43
RESET
13
XTAL2
16
XTAL1
17
AVCC1
44
AVCC
24
AREF
42
VCC
14
GND
15
GND1
23
GND2
35
UCAP
6
UVCC
2
D-
3
D+
4
UGND
5
VBus
7
(ADC0)PF0
41
(ADC1)PF1
40
(ADC7/TDI)PF7
36
(ADC6/TDO)PF6
37
(ADC5/TMS)PF5
38
(ADC4/TCK)PF4
39
(OC0B/SCL/INT0)PD0
18
(/SDA/INT1)PD1
19
(RXD1/AIN1/INT2)PD2
20
(TXD1/INT3)PD3
21
(ICP1/A DC8)PD4
25
(XCK1/#CTS)PD5
22
(T1/#OC4D/ADC9)PD6
26
(T0/OC4D/ADC109)PD7
27
(#HWB)PE2
33
(INT6/AIN0)PE6
1
(OC3A/#OC4A)PC6
31
(IPC3/CLK0/OC4A)PC7
32
(SS/PCINT0)PB0
8
(SCLK/PCINT1)PB1
9
(PD1/MOSI/PCINT2)PB2
10
(PD0/MISO/PCINT3)PB3
11
(ADC11/PCINT4)PB4
28
(ADC12/OC1A/#OC4B/PCINT5)PB5
29
(ADC13/OC1B/OC4B/PCINT6)PB6
30
(#RTS/OC0A/OC1C/PCINT7)PB7
12
ATMEGA32U4
U4
GND
A1
TX1+
A2
TX-
A3
VBUS
A4
CC1
A5
D+
A6
D-
A7
SBU1
A8
VBUS
A9
RX2-
A10
RX2+
A11
GND
A12
GND
B1
TX2+
B2
TX2-
B3
VBUS
B4
CC2
B5
D+
B6
D-
B7
SBUS2
B8
VBUS
B9
RX1-
B10
RX1+
B11
GND
B12
Shell
0
U1
CC1
D+
D-
CC2
D+
D-
1
2
3
4
5
6
7
8
J1
18pF
C9
16M
X1
1uF
C14
D+
D-
VBAT
GND
VUSB
A0
A1
D16/MOSI
D14/MISO
D15/SCK
GND
VOUT
D10/CS1
D9
D3/SCL
D2/SDA
D1/TX
D0/RX
VUSBVUSB
VUSB VUSB
1
2
3
4
5
6
7
8
J2
5.1K
R1
5.1K
R2
100nF
C12
18pF
C10
10K
R7
VOUT
LED2
3K
R9
LED4
3K
R11
RST
22uF
C2
10uF
C6
10uF
C8
22uF
C1
VIN
4
REG
9
PWIN
7
VCC
5
EN
25
MODE
24
VB
16
FREQ
26
ILIM
6
ISET
13
OLIM
14
TMR
8
AGND
15
NTC
12
BOOST
22
CHG
23
ACOK
10
BATT
17
CSP
18
SW
21
IB
1
FB
11
SYS
3
PGND
27
SW
2
VIN
19
SYS
20
SYS
29
VIN
30
PGND
28
MP2636
U2
VUSB
30K
R10
44.2K
R12
10K
R16
VCC
10K
R15
100nF
C17
56KR22 200KR23
100nFC18
10K
R21
10KR18
VOUT
LED1
3K
R13
2.2uH
L1
SW
CSP
20mR
R6
ICH=2400/(RIset*Rmr)=600mA
VBAT
10uF
C16
10uF
C13
10K
R5
2.2uF
C5
IB
15KR4
47K
R3
VOUT
100nF
C4
100nF
C7
VOUT
FB
3K
R14
CHG
ACOK
200KR24
VOUT
VCC
FD3
PIC101
PIC102
COC1
PIC201
PIC202
COC2
PIC401
PIC402
COC4
PIC501 PIC502
COC5
PIC601
PIC602
COC6
PIC701
PIC702
COC7
PIC801
PIC802
COC8
PIC901 PIC902
COC9
PIC1001 PIC1002
COC10
PIC1201 PIC1202
COC12
PIC1301
PIC1302
COC13
PIC1401 PIC1402
COC14
PIC1601
PIC1602
COC16
PIC1701
PIC1702
COC17
PIC1801
PIC1802
COC18
COFD1 COFD2 COFD3
PIJ101
PIJ102
PIJ103
PIJ104
PIJ105
PIJ106
PIJ107
PIJ108
COJ1
PIJ201
PIJ202
PIJ203
PIJ204
PIJ205
PIJ206
PIJ207
PIJ208
COJ2
PIL101 PIL102
COL1
PILED101 PILED102
COLED1
PILED201 PILED202
COLED2
PILED401 PILED402
COLED4
PIR101 PIR102
COR1
PIR201 PIR202
COR2
PIR301 PIR302
COR3
PIR401 PIR402
COR4
PIR501 PIR502
COR5
PIR601 PIR602
COR6
PIR701
PIR702
COR7
PIR801 PIR802
COR8
PIR901 PIR902
COR9
PIR1001
PIR1002
COR10
PIR1101 PIR1102
COR11
PIR1201
PIR1202
COR12
PIR1301 PIR1302
COR13
PIR1401 PIR1402
COR14
PIR1501
PIR1502
COR15
PIR1601
PIR1602
COR16
PIR1801 PIR1802
COR18
PIR2101
PIR2102
COR21
PIR2201
PIR2202
COR22
PIR2301
PIR2302
COR23
PIR2401
PIR2402
COR24
PIT300
COT3
PIU100
PIU10A1
PIU10A2
PIU10A3
PIU10A4
PIU10A5
PIU10A6
PIU10A7
PIU10A8
PIU10A9
PIU10A10
PIU10A11
PIU10A12 PIU10B1
PIU10B2
PIU10B3
PIU10B4
PIU10B5
PIU10B6
PIU10B7
PIU10B8
PIU10B9
PIU10B10
PIU10B11
PIU10B12
COU1
PIU201
PIU202
PIU203
PIU204
PIU205
PIU206
PIU207
PIU208
PIU209
PIU2010
PIU2011
PIU2012
PIU2013 PIU2014 PIU2015
PIU2016
PIU2017
PIU2018
PIU2019
PIU2020
PIU2021
PIU2022
PIU2023
PIU2024
PIU2025
PIU2026
PIU2027 PIU2028 PIU2029
PIU2030
COU2
PIU401
PIU402
PIU403
PIU404
PIU405
PIU406
PIU407
PIU408
PIU409
PIU4010
PIU4011
PIU4012
PIU4013
PIU4014
PIU4015
PIU4016
PIU4017
PIU4018
PIU4019
PIU4020
PIU4021
PIU4022
PIU4023
PIU4024
PIU4025
PIU4026
PIU4027
PIU4028
PIU4029
PIU4030
PIU4031
PIU4032
PIU4033
PIU4034
PIU4035
PIU4036
PIU4037
PIU4038
PIU4039
PIU4040
PIU4041
PIU4042
PIU4043
PIU4044
COU4
PIX101
PIX103
COX1