Board Design
Board design documentation for Traffic light project
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 |
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