# stoplight control board ## Description Welcome to your new project. Imagine what you can build here. ## Project Details - **Owner:** bluefish3 - **Created:** 7/27/2025 - **Last Updated:** 7/29/2025 - **Visibility:** Public ## Key Components ### D1 — [Diode_THT_P10.16mm_Horizontal](https://www.flux.ai/jecstronic/diodethtp1016mmhorizontal~6z.md) - Part Type: Diode **Pins:** - A - K ### D10 — [Diode_THT_P10.16mm_Horizontal](https://www.flux.ai/jecstronic/diodethtp1016mmhorizontal~6z.md) - Part Type: Diode **Pins:** - A - K ### D2 — [Diode_THT_P10.16mm_Horizontal](https://www.flux.ai/jecstronic/diodethtp1016mmhorizontal~6z.md) - Part Type: Diode **Pins:** - A - K ### D3 — [Diode_THT_P10.16mm_Horizontal](https://www.flux.ai/jecstronic/diodethtp1016mmhorizontal~6z.md) - Part Type: Diode **Pins:** - A - K ### D4 — [Diode_THT_P10.16mm_Horizontal](https://www.flux.ai/jecstronic/diodethtp1016mmhorizontal~6z.md) - Part Type: Diode **Pins:** - A - K ### D5 — [Diode_THT_P10.16mm_Horizontal](https://www.flux.ai/jecstronic/diodethtp1016mmhorizontal~6z.md) - Part Type: Diode **Pins:** - A - K ### D6 — [Diode_THT_P10.16mm_Horizontal](https://www.flux.ai/jecstronic/diodethtp1016mmhorizontal~6z.md) - Part Type: Diode **Pins:** - A - K ### D7 — [Diode_THT_P10.16mm_Horizontal](https://www.flux.ai/jecstronic/diodethtp1016mmhorizontal~6z.md) - Part Type: Diode **Pins:** - A - K ### D8 — [Diode_THT_P10.16mm_Horizontal](https://www.flux.ai/jecstronic/diodethtp1016mmhorizontal~6z.md) - Part Type: Diode **Pins:** - A - K ### D9 — [Diode_THT_P10.16mm_Horizontal](https://www.flux.ai/jecstronic/diodethtp1016mmhorizontal~6z.md) - Part Type: Diode **Pins:** - A - K ### IC1 — [LM555CN/NOPB](https://www.flux.ai/adrian95/lm555cnnopb~9qu.md) - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.ti.com/lit/ds/symlink/lm555.pdf - Part Type: Integrated Circuit - Manufacturer Name: Texas Instruments - Manufacturer Part Number: LM555CN/NOPB **Pins:** - +VCC [pin 8] - CONTROL_VOLTAGE [pin 5] - DISCHARGE [pin 7] - GND [pin 1] - OUTPUT [pin 3] - RESET [pin 4] - THRESHOLD [pin 6] - TRIGGER [pin 2] ### J1 — [40 Pin 90 Degree Box Connector](https://www.flux.ai/sgibson/40-pin-90-degree-box-connector~iz.md) - Datasheet URL: https://s3.amazonaws.com/catalogspreads-pdf/PAGE122%20.100%20SBH11%20SERIES%20MALE%20BOX%20HDR%20ST%20RA%20SMT.pdf - Part Type: 40 Pin 90 Degree Box Connector - Manufacturer Part Number: SBH11-PBPC-D20-RA-BK - Digi-Key Part Number: S9183-ND - Package or Case Code: SULLINS_SBH11-PBPC-D20-RA-BK - Purchase Url: https://www.digikey.com/en/products/detail/sullins-connector-solutions/SBH11-PBPC-D20-RA-BK/1990076 - Connector Positions: 40 - Connector Pitch: 2.54mm **Pins:** - 1 [pin 1] - 10 [pin 10] - 11 [pin 11] - 12 [pin 12] - 13 [pin 13] - 14 [pin 14] - 15 [pin 15] - 16 [pin 16] - 17 [pin 17] - 18 [pin 18] - 19 [pin 19] - 2 [pin 2] - 20 [pin 20] - 21 [pin 21] - 22 [pin 22] - 23 [pin 23] - 24 [pin 24] - 25 [pin 25] - 26 [pin 26] - 27 [pin 27] - 28 [pin 28] - 29 [pin 29] - 3 [pin 3] - 30 [pin 30] - 31 [pin 31] - 32 [pin 32] - 33 [pin 33] - 34 [pin 34] - 35 [pin 35] - 36 [pin 36] - 37 [pin 37] - 38 [pin 38] - 39 [pin 39] - 4 [pin 4] - 40 [pin 40] - 5 [pin 5] - 6 [pin 6] - 7 [pin 7] - 8 [pin 8] - 9 [pin 9] ### J10 — [TerminalBlock-01x02P-5.00mm](https://www.flux.ai/vasy_skral/terminalblock-01x02p-500mm~h4.md) - Part Type: Connector **Pins:** - P1 [pin 2] - P2 [pin 1] ### J11 — [TerminalBlock-01x02P-5.00mm](https://www.flux.ai/vasy_skral/terminalblock-01x02p-500mm~h4.md) - Part Type: Connector **Pins:** - P1 [pin 2] - P2 [pin 1] ### J12 — [TerminalBlock-01x02P-5.00mm](https://www.flux.ai/vasy_skral/terminalblock-01x02p-500mm~h4.md) - Part Type: Connector **Pins:** - P1 [pin 2] - P2 [pin 1] ### J13 — [TerminalBlock-01x02P-5.00mm](https://www.flux.ai/vasy_skral/terminalblock-01x02p-500mm~h4.md) - Part Type: Connector **Pins:** - P1 [pin 2] - P2 [pin 1] ### J2 — [TerminalBlock-01x02P-5.00mm](https://www.flux.ai/vasy_skral/terminalblock-01x02p-500mm~h4.md) - Part Type: Connector **Pins:** - P1 [pin 2] - P2 [pin 1] ### J3 — [TerminalBlock-01x02P-5.00mm](https://www.flux.ai/vasy_skral/terminalblock-01x02p-500mm~h4.md) - Part Type: Connector **Pins:** - P1 [pin 2] - P2 [pin 1] ### J4 — [TerminalBlock-01x02P-5.00mm](https://www.flux.ai/vasy_skral/terminalblock-01x02p-500mm~h4.md) - Part Type: Connector **Pins:** - P1 [pin 2] - P2 [pin 1] ### J5 — [TerminalBlock-01x02P-5.00mm](https://www.flux.ai/vasy_skral/terminalblock-01x02p-500mm~h4.md) - Part Type: Connector **Pins:** - P1 [pin 2] - P2 [pin 1] ### J6 — [TerminalBlock-01x02P-5.00mm](https://www.flux.ai/vasy_skral/terminalblock-01x02p-500mm~h4.md) - Part Type: Connector **Pins:** - P1 [pin 2] - P2 [pin 1] ### J7 — [TerminalBlock-01x02P-5.00mm](https://www.flux.ai/vasy_skral/terminalblock-01x02p-500mm~h4.md) - Part Type: Connector **Pins:** - P1 [pin 2] - P2 [pin 1] ### J8 — [TerminalBlock-01x02P-5.00mm](https://www.flux.ai/vasy_skral/terminalblock-01x02p-500mm~h4.md) - Part Type: Connector **Pins:** - P1 [pin 2] - P2 [pin 1] ### J9 — [TerminalBlock-01x02P-5.00mm](https://www.flux.ai/vasy_skral/terminalblock-01x02p-500mm~h4.md) - Part Type: Connector **Pins:** - P1 [pin 2] - P2 [pin 1] ### K1 — [Relay-12VDC-SL-C](https://www.flux.ai/deadzerok/relay-12vdc-sl-c~zh.md) - Datasheet URL: https://datasheet.lcsc.com/lcsc/2304140030_Ningbo-Songle-Relay-SRD-12VDC-SL-C_C30431.pdf - Part Type: Relay - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Ningbo Songle Relay - Manufacturer Part Number: SRD-12VDC-SL-C **Pins:** - Coil-1 [pin COIL1] - Coil-2 [pin COIL2] - Com-3 [pin COM] - NC [pin NC] - NO [pin NO] ### K2 — [Relay-12VDC-SL-C](https://www.flux.ai/deadzerok/relay-12vdc-sl-c~zh.md) - Part Type: Relay - Datasheet URL: https://datasheet.lcsc.com/lcsc/2304140030_Ningbo-Songle-Relay-SRD-12VDC-SL-C_C30431.pdf - Manufacturer Name: Ningbo Songle Relay - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: SRD-12VDC-SL-C **Pins:** - Coil-1 [pin COIL1] - Coil-2 [pin COIL2] - Com-3 [pin COM] - NC [pin NC] - NO [pin NO] ### K4 — [Relay-12VDC-SL-C](https://www.flux.ai/deadzerok/relay-12vdc-sl-c~zh.md) - Datasheet URL: https://datasheet.lcsc.com/lcsc/2304140030_Ningbo-Songle-Relay-SRD-12VDC-SL-C_C30431.pdf - Part Type: Relay - Manufacturer Name: Ningbo Songle Relay - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: SRD-12VDC-SL-C **Pins:** - Coil-1 [pin COIL1] - Coil-2 [pin COIL2] - Com-3 [pin COM] - NC [pin NC] - NO [pin NO] ### Q1 — [40V NPN BJT Transistor](https://www.flux.ai/corynrobinson/40v-npn-bjt-transistor~wt.md) - Part Type: Transistor - Manufacturer Name: ON Semiconductor - Manufacturer Part Number: 2N3904TFR - Datasheet URL: https://www.onsemi.com/pdf/datasheet/pzt3904-d.pdf **Pins:** - B [pin 2] - C [pin 3] - E [pin 1] ### Q10 — [40V NPN BJT Transistor](https://www.flux.ai/corynrobinson/40v-npn-bjt-transistor~wt.md) - Datasheet URL: https://www.onsemi.com/pdf/datasheet/pzt3904-d.pdf - Part Type: Transistor - Manufacturer Name: ON Semiconductor - Manufacturer Part Number: 2N3904TFR **Pins:** - B [pin 2] - C [pin 3] - E [pin 1] ### Q2 — [40V NPN BJT Transistor](https://www.flux.ai/corynrobinson/40v-npn-bjt-transistor~wt.md) - Manufacturer Name: ON Semiconductor - Part Type: Transistor - Manufacturer Part Number: 2N3904TFR - Datasheet URL: https://www.onsemi.com/pdf/datasheet/pzt3904-d.pdf **Pins:** - B [pin 2] - C [pin 3] - E [pin 1] ### Q3 — [40V NPN BJT Transistor](https://www.flux.ai/corynrobinson/40v-npn-bjt-transistor~wt.md) - Datasheet URL: https://www.onsemi.com/pdf/datasheet/pzt3904-d.pdf - Part Type: Transistor - Manufacturer Name: ON Semiconductor - Manufacturer Part Number: 2N3904TFR **Pins:** - B [pin 2] - C [pin 3] - E [pin 1] ### Q4 — [40V NPN BJT Transistor](https://www.flux.ai/corynrobinson/40v-npn-bjt-transistor~wt.md) - Datasheet URL: https://www.onsemi.com/pdf/datasheet/pzt3904-d.pdf - Manufacturer Name: ON Semiconductor - Part Type: Transistor - Manufacturer Part Number: 2N3904TFR **Pins:** - B [pin 2] - C [pin 3] - E [pin 1] ### Q5 — [40V NPN BJT Transistor](https://www.flux.ai/corynrobinson/40v-npn-bjt-transistor~wt.md) - Datasheet URL: https://www.onsemi.com/pdf/datasheet/pzt3904-d.pdf - Manufacturer Part Number: 2N3904TFR - Manufacturer Name: ON Semiconductor - Part Type: Transistor **Pins:** - B [pin 2] - C [pin 3] - E [pin 1] ### Q6 — [40V NPN BJT Transistor](https://www.flux.ai/corynrobinson/40v-npn-bjt-transistor~wt.md) - Datasheet URL: https://www.onsemi.com/pdf/datasheet/pzt3904-d.pdf - Manufacturer Part Number: 2N3904TFR - Manufacturer Name: ON Semiconductor - Part Type: Transistor **Pins:** - B [pin 2] - C [pin 3] - E [pin 1] ### Q7 — [40V NPN BJT Transistor](https://www.flux.ai/corynrobinson/40v-npn-bjt-transistor~wt.md) - Manufacturer Name: ON Semiconductor - Part Type: Transistor - Manufacturer Part Number: 2N3904TFR - Datasheet URL: https://www.onsemi.com/pdf/datasheet/pzt3904-d.pdf **Pins:** - B [pin 2] - C [pin 3] - E [pin 1] ### Q8 — [40V NPN BJT Transistor](https://www.flux.ai/corynrobinson/40v-npn-bjt-transistor~wt.md) - Manufacturer Name: ON Semiconductor - Part Type: Transistor - Manufacturer Part Number: 2N3904TFR - Datasheet URL: https://www.onsemi.com/pdf/datasheet/pzt3904-d.pdf **Pins:** - B [pin 2] - C [pin 3] - E [pin 1] ### Q9 — [40V NPN BJT Transistor](https://www.flux.ai/corynrobinson/40v-npn-bjt-transistor~wt.md) - Manufacturer Part Number: 2N3904TFR - Part Type: Transistor - Manufacturer Name: ON Semiconductor - Datasheet URL: https://www.onsemi.com/pdf/datasheet/pzt3904-d.pdf **Pins:** - B [pin 2] - C [pin 3] - E [pin 1] ### U1 — [2982650](https://www.flux.ai/lcsc/2982650~kfot.md) - Manufacturer Name: Phoenix Contact(菲尼克斯) - Package or Case Code: DIP-4_L43.2-W10.5_OV-24DC-480AC - Manufacturer Part Number: 2982650 - LCSC Part Number: C1559142 - Part Type: Solid State Relays - MOS Output (PhotoMOS) **Pins:** - 3 [pin 3] - 4 [pin 4] - A [pin 1] - C [pin 2] ### U2 — [2982650](https://www.flux.ai/lcsc/2982650~kfot.md) - Manufacturer Name: Phoenix Contact(菲尼克斯) - Package or Case Code: DIP-4_L43.2-W10.5_OV-24DC-480AC - Manufacturer Part Number: 2982650 - LCSC Part Number: C1559142 - Part Type: Solid State Relays - MOS Output (PhotoMOS) **Pins:** - 3 [pin 3] - 4 [pin 4] - A [pin 1] - C [pin 2] ### U3 — [2982650](https://www.flux.ai/lcsc/2982650~kfot.md) - Package or Case Code: DIP-4_L43.2-W10.5_OV-24DC-480AC - Manufacturer Part Number: 2982650 - Manufacturer Name: Phoenix Contact(菲尼克斯) - Part Type: Solid State Relays - MOS Output (PhotoMOS) - LCSC Part Number: C1559142 **Pins:** - 3 [pin 3] - 4 [pin 4] - A [pin 1] - C [pin 2] ### U4 — [2982650](https://www.flux.ai/lcsc/2982650~kfot.md) - LCSC Part Number: C1559142 - Part Type: Solid State Relays - MOS Output (PhotoMOS) - Manufacturer Name: Phoenix Contact(菲尼克斯) - Manufacturer Part Number: 2982650 - Package or Case Code: DIP-4_L43.2-W10.5_OV-24DC-480AC **Pins:** - 3 [pin 3] - 4 [pin 4] - A [pin 1] - C [pin 2] ### U5 — [2982650](https://www.flux.ai/lcsc/2982650~kfot.md) - Manufacturer Part Number: 2982650 - Package or Case Code: DIP-4_L43.2-W10.5_OV-24DC-480AC - Manufacturer Name: Phoenix Contact(菲尼克斯) - Part Type: Solid State Relays - MOS Output (PhotoMOS) - LCSC Part Number: C1559142 **Pins:** - 3 [pin 3] - 4 [pin 4] - A [pin 1] - C [pin 2] ### U6 — [2982650](https://www.flux.ai/lcsc/2982650~kfot.md) - LCSC Part Number: C1559142 - Part Type: Solid State Relays - MOS Output (PhotoMOS) - Manufacturer Name: Phoenix Contact(菲尼克斯) - Package or Case Code: DIP-4_L43.2-W10.5_OV-24DC-480AC - Manufacturer Part Number: 2982650 **Pins:** - 3 [pin 3] - 4 [pin 4] - A [pin 1] - C [pin 2] ### U7 — [2982650](https://www.flux.ai/lcsc/2982650~kfot.md) - Manufacturer Part Number: 2982650 - Package or Case Code: DIP-4_L43.2-W10.5_OV-24DC-480AC - Manufacturer Name: Phoenix Contact(菲尼克斯) - Part Type: Solid State Relays - MOS Output (PhotoMOS) - LCSC Part Number: C1559142 **Pins:** - 3 [pin 3] - 4 [pin 4] - A [pin 1] - C [pin 2] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/bluefish3/stoplight-control-board~9j](https://www.flux.ai/bluefish3/stoplight-control-board~9j).* --- *Generated from [https://www.flux.ai/bluefish3/stoplight-control-board~9j](https://www.flux.ai/bluefish3/stoplight-control-board~9j)*