Marc0-dev/SJ413-clock**DISCLAMER** The PCB dimensions are approximate, the position of the screw holes is not correct.
SJ413-clock is an open-source printed circuit board by Marc0-dev, from the Marc0-dev/SJ413-clock repository on GitHub, published under the CC0-1.0 licence. It is a 4-layer board of 53.4 × 53.3 mm with 24 parts on 28 nets, routed with 157 tracks and 35 vias.
It is built around the CH32V003F4P6, XL1509-3.3 and PCF8563T/5,518-CN, with the CC0603KRX7R9BB104, 0402CG120J500NT and 9H03200034 among its other parts. Its parts include 6 capacitors, 4 connectors, 3 ICs, 2 resistors and 2 diodes. It belongs with the lEDs and displays boards and the RISC-V boards of this library.
DISCLAMER
The PCB dimensions are approximate, the position of the screw holes is not correct, feel free to contribute in this regard.
You must have the original plastic casing to assemble the clock.
Pointers are much appreciated(i'm still an amateur in electronics).
This project is not complete(it may change and improve in the future).
The project is a replacement of the original suzuki sj-413 dashboard clock. All code on these repository is made using platformIO, leveraging the inexpensive wch ch32v003f4p6 MCU.
List of components(lcsc part numbers):
C1(100nf): C14663,
C2(1uf): C28322,
C3(470uf):C5162352,
C4(330uf):C3032175,
C5(12pf):C76948,
C6(100nf):C14663,
D1:C5357977,
D2:C552776,
J1(oled display connector),
J2(wch-linke interface),
J4(molex connector for rtc),
J5(power connector),
L1(47uh/2A): C5189938,
R1(4k7):C99782,
R2(4k7):C99782,
U1(mcu):C5187096,
U2(buck converter):C2681226,
U3(real time clock):C7440,
Y1:C90945,
display used: C5248081,
you should use only the top row of the connector: the left one is positive, the right one is negative
#Images(from previous iteration, without reverse current protection):
| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | 100nf | Capacitor_SMD:C_0603_1608Metric | C1, C6 |
| 2 | 4k7 | Resistor_SMD:R_0603_1608Metric | R1, R2 |
| 2 | SW_SPST | clockLib:membrane switch | SW1, SW2 |
| 1 | 12pF | Capacitor_SMD:C_0402_1005Metric | C5 |
| 1 | 1N5820 | Diode_THT:D_DO-201AD_P15.24mm_Horizontal | D1 |
| 1 | 1uf | Capacitor_SMD:C_1206_3216Metric | C2 |
| 1 | 32.768kHz | Crystal:Crystal_SMD_3215-2Pin_3.2x1.5mm | Y1 |
| 1 | 330uf | Capacitor_SMD:CP_Elec_10x10.5 | C4 |
| 1 | 470uf | Capacitor_SMD:CP_Elec_10x10.5 | C3 |
| 1 | 47uh/2A | Inductor_SMD:L_Sumida_CDMC6D28_7.25x6.5mm | L1 |
| 1 | CH32V003F4P6 | Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm | U1 |
| 1 | D_Schottky_AAK | clockLib:DIO_PMEG050V150EPDZ | D2 |
| 1 | Debug | Connector_PinSocket_2.54mm:PinSocket_1x06_P2.54mm_Vertical_SMD_Pin1Left | J2 |
| 1 | Display | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical_SMD_Pin1Left | J1 |
| 1 | PCF8563T | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U3 |
| 1 | XL1509-3.3 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U2 |
| 1 | molex | Connector_Molex:Molex_PicoBlade_53047-0210_1x02_P1.25mm_Vertical | J4 |
| 1 | power | Connector_PinSocket_2.54mm:PinSocket_1x02_P2.54mm_Vertical_SMD_Pin1Left | J5 |
The 21 most common of 24 parts.
It measures 53.4 × 53.3 mm and has 4 copper layers, 1.6 mm thick.
24 parts, built around the CH32V003F4P6, XL1509-3.3, PCF8563T/5,518-CN and CC0603KRX7R9BB104. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
From the Marc0-dev/SJ413-clock repository on GitHub, at the commit this page was made from: the board is kicad-files/SJ413-clock.kicad_pcb and its schematic kicad-files/SJ413-clock.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository publishes it under the CC0-1.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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