Datasheet

OBDII click schematic v101
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Mikroelektronika assumes no responsibility or liability for any errors or inaccuracies that may appear in the present document.
Specification and information contained in the present schematic are subject to change at any time without notice. Copyright©2019 MikroElektronika. All rights reserved.
C1
100nF
C2
1uF
R1
10K
R2
62K
R3
10K
GND
VCC 5
VBAT_RAW
GND
RX_UARTRX_OBD TX_UARTTX_OBD
VCC
R4
470R
R5
470R
R6
470R
R7
470R
AN_IN
PWM_VP
VPW_RX
PWM_RX
J1850+TX
J1850-TX
OSC1
OSC2
ISO_RX
SLEEP
CAN_RX
RST
ISO_L_TX
ISO_K_TX
RX_LED
TX_LED
INT
FRST
VCAP
PWR_CTRL
UART_TX
UART_RX
CAN_TX
INT FRST RX_LED TX_LED
X1
16MHz
C3
27pF
C4
27PF
GND
OSC1
OSC2
R8
4K7
R9
1K5
CAN_TX
UART_TX
RST
AN_IN
C5
1uF
GND
VCC 5
VCC
GND
VCC
GND
R11
510R 0.5W
R10
510R 0.5W
VBAT
VBAT
GND
GND
R12
1K
ISO_K_TX
R13
1K
ISO_L_TX
K_LINE
L_LINE
R14
10K
ISO_RX
R15
10K
K_LINE
1IN-
1IN-
1IN+
R16
10K
R17
10K
GND
VBAT
1IN+
ISO_RX
VCC 5
GND
C6
1uF
GND
VCC
LM339
1OUT
1
2OUT
2
VCC
3
2IN-
4
2IN+
5
1IN-
6
1IN+
7
3IN-
8
3IN+
9
4IN-
10
4IN+
11
GND
12
OUT4
13
OUT3
14
U2
TXD
1
VSS
2
VDD
3
RXD
4
VREF
5
CANL
6
CANH
7
RS
8
U3
MCP2561
CAN_TX
CAN_RX
VCC 5
GND
R18
4K7
RS
CANH
CANL
RS
GND
GND
C7
4700pF
R19
60.4R
R20
60.4R
CANL
CANH
R22
10K
VCC 5
GND
R21
1K
J1850-TX
J1850-
D1
R23
1K2
R24
4K7
GND
VCC 5
2IN+
2IN+
R25
10K
J1850+
2IN-
R26
10K
J1850+
3IN+
R27
10K
J1850-
3IN-
3IN+
3IN-
R28
10K
VPW_RX
VPW_RX
PWM_RX
R29
10K
PWM_RX
VCC
VBAT_RAW VBAT
Adj
1
Vout
2
Vin
3
U4
LM317
C9
100nF
GND
VBAT
R30
866R
R31
374R
GND
PWM_VP
R32
240R
VCC 5/7
BATT_LED
R33
470R
AN
RST
CS
SCK
MOSI
MISO
+3.3V
GND
PWM
INT
RX
TX
SCL
SDA
+5V
GND
MIKROBUS
J1850+
CANH
L_LINE
K_LINE
CANL
UART_TX
UART_RX
VBAT VCC 5
R34
1K5
VCC 5/7
J1850+TX
GND
PM1
D3
VCC 5/7
D4
R35
10K
GND
J1850+
VCC
GND GND
INT
C10
10uF
GND
VCAP
RST
GND
VBAT_RAW
C12
10uF
GND
Vin
1
GND
2
Vout
3
U5
MC7805
Q1
MMBT2222
Q2
MMBT2222
PWR_LED
R36
470R
VCC
Q3
MMBT2222
D2
NM2NM1
STN1110
RESET
1
ANALOG_IN
2
PWM_VPW
3
VPW_RX
4
PWM_RX
5
J1850+TX
6
J1850-TX
7
VSS
8
OSC1
9
OSC2
10
ISO_RX
11
SLEEP
12
VDD
13
CAN_RX
14
CAN_TX
15
UART_RX
16
UART_TX
17
PWR_CTRL
18
VSS
19
VCAP
20
FACT_RST
21
INT
22
TX_LED
23
RX_LED
24
ISO_K_TX
25
ISO_L_TX
26
AVSS
27
AVDD
28
U1
PWR_CTRL
R37
100K
2IN-
C8
1uF
GND
VCC
5
9
4
8
3
7
2
6
1
5
1
6
9
CN1
RS-232 CONNECTOR
J1850-