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  1. Project-based Learning
  2. Smart Traffic Light

Board Design

Board design documentation for Traffic light project

PreviousSmart Traffic LightNextSTEPico & Micropython

Last updated 5 months ago

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Board Dimensions

The general board size is 230 x 250 mm, more detailed dimensions can be referred in the PDF file below.

Circuit Schematic

The circuit schematic of the Smart Traffic Light module composes three parts as listed below

Component List

References
Value
Footprint
Quantity

C1, C2

0.1uF

C_1206_3216Metric

2

C4, C6

22uF

C_1206_3216Metric

2

C8, C9

1uF

C_1206_3216Metric

2

C3

1000pF

C_1206_3216Metric

1

C5

4.7uF

C_1206_3216Metric

1

C7

100pF

C_1206_3216Metric

1

R1, R2, R5, R7, R11

10K

R_1206_3216Metric

5

R3, R6, R8

1K

R_1206_3216Metric

3

R4

10k

02LDR1-Enlarge

1

R9

8.2K

R_1206_3216Metric

1

R10

3.3K

R_1206_3216Metric

1

R12

0R

Jumper-1206Padx3

1

L1

2.2uH

L_1206_3216Metric

1

D2, D3

1N4148

D_SOD-123

2

D1

1N5819

D_SOD-123

1

U2, U3

EST248GUA

TO-92-EST248GUA-Enlarge

2

U1

LM393

SOP-8_3.9x4.9mm_P1.27mm

1

U4

XL1509-ADJE1

SOP-8_3.9x4.9mm_P1.27mm

1

U5

MIC5504-3.3YM5

SOT-23-5

1

SW1, SW2

SW_6X6X6

SW_PUSH_6mm-Enlarge

2

SW3

SW_DPDT_x2

SW-MT-0-102-A101-M200-RS+PJ-Enlarge

1

H1, H2, H3, H4

MountingHole

MountingHole_3.2mm_M3

4

RV1, RV2

10k

3386P-Enlarge

2

J4, J5, J6, J7, J8, J9, J10, J11

Roadlight

PinSocket_2x03_P2.54mm_Vertical_SMD

8

J1, J3, J12, J13

Conn_02x05_Odd_Even

PinSocket_2x05_P2.54mm_Vertical_SMD

4

J16, J17, J18

Conn_Charge

XH-2A-P2.54-Enlarge

3

J2

STEP_FPGA

DIP-40_800_Enlarge

1

J15

Conn_BAT

XH-2A-P2.54-Enlarge

1

J19

STEP_PICO

RPi_Pico_Core

1

👍
188KB
board.pdf
pdf
Circuit Schematic of the Main Board of Traffic Light Module
Schematic of the Red, Yellow, Green lights
Schematic of the Road lights