Schematics
Table Of Contents
1
1
2
2
3
3
4
4
D D
C C
B B
A A
104
C13
104
C15
104C11
104C14
C1+
1
V+
2
C1-
3
C2+
4
C2-
5
V-
6
T2OUT
7
R2IN
8
R2OUT
9
T2IN
10
T1IN
11
R1OUT
12
R1IN
13
T1OUT
14
GND
15
VCC
16
U3
Max3232
T0O
R0I
R0O
T0I
C24
150pF
C16
150pF
C12 104
C23
150pF
C8
150pF
R1I
T1O
R1I
T1O
T1I
R1O
RS-232
TXD1
T1I R1O
RXD1
VSYS
51RR13
51RR14
GND
3
K
1
K
2
D2
PESD15VL2BT
D3SMAJ15CA
D1SMAJ15CA
L1
600R 100MHz
L2
600R 100MHz
51RR15
51RR16
GND
3
K
1
K
2
D5
PESD15VL2BT
D6
SMAJ15CA
D4
SMAJ15CA
L3
600R 100MHz
L4
600R 100MHz
TXD0
RXD0
C26
150pF
C25
150pF
C22
150pF
C21
150pF
R0OT0I
T0O
R0I
GP0
GP1
GP2
GND
GP3
GP4
GP5
GND
GND
GND
GP6
GP7
GP8
GP9
GP10
GP11
GP12
GP13
GP15 GP16
GP17
GND
GP18
GP19
GP20
GP21
GND
GP22
RUN
VBUS
GP26
GP27
GND
GP28
GND
3V3(OUT)
ADC_VREF
GPIO0
1
GPIO1
2
GND
3
GPIO2
4
GPIO3
5
GPIO4
6
GPIO5
7
GND
8
GPIO6
9
GPIO7
10
GPIO8
11
GPIO9
12
GND
13
GPIO10
14
GPIO11
15
GPIO12
16
GPIO13
17
GND
18
GPIO14
19
GPIO15
20
GPIO16
21
GPIO17
22
GND
23
GPIO18
24
GPIO19
25
GPIO20
26
GPIO21
27
GND
28
GPIO22
29
RUN
30
IO26/ADC0
31
IO27/ADC1
32
AGND
33
IO28/ADC2
34
ADC_VREF
35
3V3
36
3V3_EN
37
GND
38
VSYS
39
VBUS
40
U1
Pi pico (40P)
3V3_EN
GP14
VSYS
USB
RXD0
TXD0
TXD1
RXD1
GP0
GP1
GP4
GP5
aveshare
W
Pico-2CH-RS232
1
2
3
H2
1
2
3
H3
R3 1K
R7 1K
L_TXD1
L_RXD1
L_TXD2
L_RXD2
R8 1K
R9 1K
3V3(OUT)
RXD0
TXD0
TXD1
RXD1
R4
1K
L_PWR1
GND
1
2
3
H4
1
2
3
H5
R0
T0
R1
T1
R0
T0
T1
R1
GND GND GND GND
GNDGND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND