Project Setup for OBD-II to UART Dev Board
Q2
Manufacturer Part Number
BSS138DW-7-F
U1
Manufacturer Part Number
STN2120-I/ML
Q4
Q6
Manufacturer Part Number
BSS138DW-7-F
http://tinyurl.com/yw84vt54
3
This is the TI web bench designer link.
4
http://tinyurl.com/ylmmm54h
2
EQ: Vo = Vref(1+R2/R1)+(Iadj\*R2)
5
CAN_J1850_BUS_P_R1
PP5V0_SW_D
CAN_J1850_P_R
UART_TX
CAN_ISO_RX
CAN_PWM_RX
CAN_HS_RX
CAN_J1850_BUS_N
GPIO_RESET
CAN_J1850_BUS_N
CAN_SW_RX
CAN_MS_RX
UART_TX
CAN_J1850_BUS_N_R
PPJ1850_V_SELECT
OSC1
GPIO_SLEEP
CAN_J1850_BUS_N_TX
ANALOG_SENSE_IN
CAN_K_LINE_R
PPDLC_SW
CAN_J1850_P_SW
PPJ1850_ADJ
CAN_HS_RX
CAN_HS_TX
CAN_L_LINE
GPIO_CAN_MODE0
CAN_J1850_BUS_P
PPJ1850
GPIO_CAN_MODE1
CAN_J1850_BUS_N_R
CAN_J1850_BUS_P_R1
GPIO_LED_HOST_ACT
CAN_HS_LO
CAN_J1850_BUS_P_VH
CAN_J1850_BUS_P_TX
CAN_J1850_BUS_P
CAN_J1850_BUS_P_R2
CAN_J1850_P_SW
GPIO_STATUS_LED
GPIO_LED_OBD_ACT
PP5V0_SW_D
ANALOG_SENSE_IN
CAN_MS_RX
GPIO_STATUS_LED
CAN_HS_HI
CAN_HS_RX
CAN_SW_TX
CAN_SW_TX
GPIO_CAN_LOAD
CAN_K_LINE
CAN_J1850_BUS_P_VH
GPIO_LED_OBD_ACT
PWR_SAVE_CTRL
GPIO_LED_HOST_ACT
PPDLC
CAN_ISO_RX
PPDLC_RAW_BUF_IN
CAN_PWM_RX
CAN_MS_HI
CAN_MS_TX
CAN_VPW_RX
CAN_ISO_L_TX
CAN_J1850_BUS_P_TX
CAN_J1850_P_D
CAN_K_LINE_R
CAN_ISO_K_TX
GPIO_RESET
GPIO_CAN_MODE0
CAN_K_LINE
CAN_MS_TX
CAN_J1850_CAN_P
CAN_J1850_BUS_P_R2
CAN_ISO_K_TX
GPIO_SLEEP
PPJ1850_V_SELECT
CAN_J1850_BUS_N_TX
PP3V3_SW
CAN_VPW_RX
OSC2
PWR_SAVE_CTRL
CAN_MS_LO
PWR_SAVE
OSC2
GPIO_CAN_MODE1
PPDLC_ISO
CAN_HS_TX
CAN_J1850_P_D
CAN_ISO_L_TX
OSC1
CAN_SW_RX
UART_RX
CAN_MS_RX
PP3V3
C37
Capacitance
1uF
C36
Capacitance
1uF
C3
Capacitance
.1uF
C24
Capacitance
.1uF
C41
Capacitance
.1uF
C39
Capacitance
.1uF
C21
Capacitance
.1uF
C31
Capacitance
1uF
C23
Capacitance
.1uF
C35
Capacitance
.1uF
C9
Capacitance
.01uF
C22
Capacitance
.1uF
C40
Capacitance
1uF
C6
Capacitance
1uF
PP5V0_SW
PP3V3
PPA3V3
PP3V3
PPDLC
PPDLC
PP3V3
PPDLC
PP5V0_SW
PP3V3
PPA3V3
PP5V0_SW
PP5V0
PPJ1850
PP5V0
PP3V3
PP3V3
PP3V3
PP3V3
PP3V3
PPJ1850
PPDLC_SW
PP3V3
PPDLC_RAW
PP3V3
PPDLC_ISO
PPDLC_ISO
PP5V0_SW
R36
Resistance
10kΩ
R13
Resistance
100kΩ
R12
Resistance
100kΩ
R59
Resistance
10kΩ
R24
Resistance
13.7kΩ
R35
Resistance
10kΩ
R11
R45
Resistance
374 Ω
R7
Resistance
100kΩ
R20
Resistance
330 Ω
R32
Resistance
10kΩ
R19
Resistance
330 Ω
R43
Resistance
100 Ω
R42
Resistance
100 Ω
R62
Resistance
100 Ω
R55
Resistance
10kΩ
R46
Resistance
100kΩ
R5
Resistance
1kΩ
R27
Resistance
10kΩ
R4
Resistance
30kΩ
R56
Resistance
1.5kΩ
R1
Resistance
100kΩ
R41
Resistance
510 Ω
R31
Resistance
10kΩ
R60
Resistance
1.5kΩ
R34
Resistance
2.7kΩ
R17
Resistance
100kΩ
R57
Resistance
10kΩ
R61
Resistance
10kΩ
R51
Resistance
1kΩ
R26
Resistance
240 Ω
R28
Resistance
10kΩ
R3
Resistance
10 Ω
R30
Resistance
10kΩ
R23
Resistance
100kΩ
R39
Resistance
100 Ω
R47
Resistance
100kΩ
R54
Resistance
1kΩ
R48
Resistance
10kΩ
R6
Resistance
620kΩ
R2
Resistance
100kΩ
R15
Resistance
1kΩ
R58
Resistance
10kΩ
R52
Resistance
510 Ω
R49
Resistance
1kΩ
R44
Resistance
866 Ω
R18
Resistance
330 Ω
R33
Resistance
10kΩ
R22
Resistance
220kΩ
R37
Resistance
10kΩ
R16
Resistance
100kΩ
R21
Resistance
10kΩ
R29
Resistance
10kΩ
R40
R14
Resistance
1.5kΩ
C30
Capacitance
560pF
X2
Q1
Q7
LED3
LED1
C27
Capacitance
560pF
C42
Capacitance
22uF
C26
Capacitance
560pF
C11
Capacitance
22uF
C4
Capacitance
12pF
C5
Capacitance
12pF
C7
Capacitance
10uF
C8
Capacitance
330pF
C29
Capacitance
560pF
LED2
Q5
Manufacturer Part Number
MBT2222ADW1T1G
D8
Manufacturer Part Number
BAS16TW-7
U4
Manufacturer Part Number
LM339LVRTER
U7
Manufacturer Part Number
LM317DCY
U10
Not Recommended for New Designs
Q8
U2
Manufacturer Part Number
TPS566242
Reviews
- Wirelessly connects nets on schematic. Used to organize schematics and separate functional blocks. To wirelessly connect net portals, give them same designator. #portaljharwinbarrozo43.0M
- Wirelessly connects power nets on schematic. Identical to the net portal, but with a power symbol. Used to organize schematics and separate functional blocks. To wirelessly connect power net portals, give them the same designator. #portal #powerjharwinbarrozo11.4M
- A generic fixed resistor ideal for rapid circuit topology development. Its footprint automatically adapts based on the selected package case code—supporting 0402, 0603, 0805, 1203, and many other standard SMD packages, as well as axial horizontal and vertical configurations. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard resistor values: 1.0 ohm, 10 ohm, 100 ohm, 1.0k ohm, 10k ohm, 100k ohm, 1.0M ohm 1.1 ohm, 11 ohm, 110 ohm, 1.1k ohm, 11k ohm, 110k ohm, 1.1M ohm 1.2 ohm, 12 ohm, 120 ohm, 1.2k ohm, 12k ohm, 120k ohm, 1.2M ohm 1.3 ohm, 13 ohm, 130 ohm, 1.3k ohm, 13k ohm, 130k ohm, 1.3M ohm 1.5 ohm, 15 ohm, 150 ohm, 1.5k ohm, 15k ohm, 150k ohm, 1.5M ohm 1.6 ohm, 16 ohm, 160 ohm, 1.6k ohm, 16k ohm, 160k ohm, 1.6M ohm 1.8 ohm, 18 ohm, 180 ohm, 1.8K ohm, 18k ohm, 180k ohm, 1.8M ohm 2.0 ohm, 20 ohm, 200 ohm, 2.0k ohm, 20k ohm, 200k ohm, 2.0M ohm 2.2 ohm, 22 ohm, 220 ohm, 2.2k ohm, 22k ohm, 220k ohm, 2.2M ohm 2.4 ohm, 24 ohm, 240 ohm, 2.4k ohm, 24k ohm, 240k ohm, 2.4M ohm 2.7 ohm, 27 ohm, 270 ohm, 2.7k ohm, 27k ohm, 270k ohm, 2.7M ohm 3.0 ohm, 30 ohm, 300 ohm, 3.0K ohm, 30K ohm, 300K ohm, 3.0M ohm 3.3 ohm, 33 ohm, 330 ohm, 3.3k ohm, 33k ohm, 330k ohm, 3.3M ohm 3.6 ohm, 36 ohm, 360 ohm, 3.6k ohm, 36k ohm, 360k ohm, 3.6M ohm 3.9 ohm, 39 ohm, 390 ohm, 3.9k ohm, 39k ohm, 390k ohm, 3.9M ohm 4.3 ohm, 43 ohm, 430 ohm, 4.3k ohm, 43K ohm, 430K ohm, 4.3M ohm 4.7 ohm, 47 ohm, 470 ohm, 4.7k ohm, 47k ohm, 470k ohm, 4.7M ohm 5.1 ohm, 51 ohm, 510 ohm, 5.1k ohm, 51k ohm, 510k ohm, 5.1M ohm 5.6 ohm, 56 ohm, 560 ohm, 5.6k ohm, 56k ohm, 560k ohm, 5.6M ohm 6.2 ohm, 62 ohm, 620 ohm, 6.2k ohm, 62K ohm, 620K ohm, 6.2M ohm 6.8 ohm, 68 ohm, 680 ohm, 6.8k ohm, 68k ohm, 680k ohm, 6.8M ohm 7.5 ohm, 75 ohm, 750 ohm, 7.5k ohm, 75k ohm, 750k ohm, 7.5M ohm 8.2 ohm, 82 ohm, 820 ohm, 8.2k ohm, 82k ohm, 820k ohm, 8.2M ohm 9.1 ohm, 91 ohm, 910 ohm, 9.1k ohm, 91k ohm, 910k ohm, 9.1M ohm #generics #CommonPartsLibraryjharwinbarrozo1.5M
- A generic fixed capacitor ideal for rapid circuit topology development. You can choose between polarized and non-polarized types, its symbol and the footprint will automatically adapt based on your selection. Supported options include standard SMD sizes for ceramic capacitors (e.g., 0402, 0603, 0805), SMD sizes for aluminum electrolytic capacitors, and through-hole footprints for polarized capacitors. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard capacitor values: 1.0pF, 10pF, 100pF, 1000pF, 0.01uF, 0.1uF, 1.0uF, 10uF, 100uF, 1000uF, 10000uF 1.1pF, 11pF, 110pF, 1100pF 1.2pF, 12pF, 120pF, 1200pF 1.3pF, 13pF, 130pF, 1300pF 1.5pF, 15pF, 150pF, 1500pF, 0.015uF, 0.15uF, 1.5uF, 15uF, 150uF, 1500uF 1.6pF, 16pF, 160pF, 1600pF 1.8pF, 18pF, 180pF, 1800pF 2.0pF, 20pF, 200pF, 2000pF 2.2pF, 22pF, 220pF, 2200pF, 0.022uF, 0.22uF, 2.2uF, 22uF, 220uF, 2200uF 2.4pF, 24pF, 240pF, 2400pF 2.7pF, 27pF, 270pF, 2700pF 3.0pF, 30pF, 300pF, 3000pF 3.3pF, 33pF, 330pF, 3300pF, 0.033uF, 0.33uF, 3.3uF, 33uF, 330uF, 3300uF 3.6pF, 36pF, 360pF, 3600pF 3.9pF, 39pF, 390pF, 3900pF 4.3pF, 43pF, 430pF, 4300pF 4.7pF, 47pF, 470pF, 4700pF, 0.047uF, 0.47uF, 4.7uF, 47uF, 470uF, 4700uF 5.1pF, 51pF, 510pF, 5100pF 5.6pF, 56pF, 560pF, 5600pF 6.2pF, 62pF, 620pF, 6200pF 6.8pF, 68pF, 680pF, 6800pF, 0.068uF, 0.68uF, 6.8uF, 68uF, 680uF, 6800uF 7.5pF, 75pF, 750pF, 7500pF 8.2pF, 82pF, 820pF, 8200pF 9.1pF, 91pF, 910pF, 9100pF #generics #CommonPartsLibraryjharwinbarrozo1.5M
- A generic fixed inductor suitable for rapid circuit topology development. The footprint automatically adapts based on the selected package, supporting standard SMD sizes (e.g., 0402, 0603, 0805) as well as well-known inductor packages such as SDR1806, PA4320, SRN6028, and SRR1260. Standard inductor values: 1.0 nH, 10 nH, 100 nH, 1.0 µH, 10 µH, 100 µH, 1.0 mH 1.2 nH, 12 nH, 120 nH, 1.2 µH, 12 µH, 120 µH, 1.2 mH 1.5 nH, 15 nH, 150 nH, 1.5 µH, 15 µH, 150 µH, 1.5 mH 1.8 nH, 18 nH, 180 nH, 1.8 µH, 18 µH, 180 µH, 1.8 mH 2.2 nH, 22 nH, 220 nH, 2.2 µH, 22 µH, 220 µH, 2.2 mH 2.7 nH, 27 nH, 270 nH, 2.7 µH, 27 µH, 270 µH, 2.7 mH 3.3 nH, 33 nH, 330 nH, 3.3 µH, 33 µH, 330 µH, 3.3 mH 3.9 nH, 39 nH, 390 nH, 3.9 µH, 39 µH, 390 µH, 3.9 mH 4.7 nH, 47 nH, 470 nH, 4.7 µH, 47 µH, 470 µH, 4.7 mH 5.6 nH, 56 nH, 560 nH, 5.6 µH, 56 µH, 560 µH, 5.6 mH 6.8 nH, 68 nH, 680 nH, 6.8 µH, 68 µH, 680 µH, 6.8 mH 8.2 nH, 82 nH, 820 nH, 8.2 µH, 82 µH, 820 µH, 8.2 mH #generics #CommonPartsLibraryjharwinbarrozo15.8k
- An electrical connector acting as reusable interface to a conductor and creating a point where external circuits can be connected.Terminal
- 47 kOhms ±5% 0.125W, 1/8W Chip Resistor 0805 (2012 Metric) Automotive AEC-Q200 Thick Film #forLedBlinkjharwinbarrozo1.2M
- 10uF Capacitor Aluminum Polymer 20% 16V SMD 5x5.3mm #forLedBlink #commonpartslibrary #capacitor #aluminumpolymer #radialcanjharwinbarrozo1.2M
- Yellow 595nm LED Indication - Discrete 1.7V 1206 (3216 Metric) #forLedBlinkjharwinbarrozo1.1M
STN2120 OBDII to UART Dev Board
OBD2 to UART interface dev board. Alternative to deprecated ELM237 Chipset.
Documentation:
Properties
Properties describe core aspects of the project.
Pricing & Availability
Distributor | Qty 1 |
|---|---|
Digi-Key | $6.81–$12.50 |
LCSC | $13.73–$13.94 |
Mouser | $22.80 |
Controls
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