# Automatic light switch by using LDR ## Description Welcome to your new project. Imagine what you can build here. ## Project Details - **Owner:** habtsh - **Created:** 11/11/2023 - **Last Updated:** 11/18/2023 - **Visibility:** Public ## Key Components ### D1 — [1A Rectifier Diode](https://www.flux.ai/corynrobinson/1a-rectifier-diode.md) - Package or Case Code: D_SMA - Manufacturer Name: Vishay - Manufacturer Part Number: S1J-E3_61T - Capacitance: 12pF - Part Type: Diode - Current: 1A - Forward Voltage: 1.1V - Purchase Url: https://octopart.com/s1j-e3%2F61t-vishay-39552151#CadModels - Datasheet URL: https://datasheet.octopart.com/S1J-E3-61T-Vishay-datasheet-10950683.pdf - Max Reverse Voltage: 600V **Pins:** - ANODE [pin 2] - CATHODE [pin 1] ### D2 — [1A Rectifier Diode](https://www.flux.ai/corynrobinson/1a-rectifier-diode.md) - Package or Case Code: D_SMA - Manufacturer Part Number: S1J-E3_61T - Manufacturer Name: Vishay - Forward Voltage: 1.1V - Current: 1A - Part Type: Diode - Capacitance: 12pF - Max Reverse Voltage: 600V - Datasheet URL: https://datasheet.octopart.com/S1J-E3-61T-Vishay-datasheet-10950683.pdf - Purchase Url: https://octopart.com/s1j-e3%2F61t-vishay-39552151#CadModels **Pins:** - ANODE [pin 2] - CATHODE [pin 1] ### D3 — [1A Rectifier Diode](https://www.flux.ai/corynrobinson/1a-rectifier-diode.md) - Package or Case Code: D_SMA - Manufacturer Name: Vishay - Manufacturer Part Number: S1J-E3_61T - Capacitance: 12pF - Part Type: Diode - Current: 1A - Forward Voltage: 1.1V - Purchase Url: https://octopart.com/s1j-e3%2F61t-vishay-39552151#CadModels - Datasheet URL: https://datasheet.octopart.com/S1J-E3-61T-Vishay-datasheet-10950683.pdf - Max Reverse Voltage: 600V **Pins:** - ANODE [pin 2] - CATHODE [pin 1] ### D4 — [1A Rectifier Diode](https://www.flux.ai/corynrobinson/1a-rectifier-diode.md) - Purchase Url: https://octopart.com/s1j-e3%2F61t-vishay-39552151#CadModels - Datasheet URL: https://datasheet.octopart.com/S1J-E3-61T-Vishay-datasheet-10950683.pdf - Max Reverse Voltage: 600V - Capacitance: 12pF - Part Type: Diode - Current: 1A - Forward Voltage: 1.1V - Manufacturer Name: Vishay - Manufacturer Part Number: S1J-E3_61T - Package or Case Code: D_SMA **Pins:** - ANODE [pin 2] - CATHODE [pin 1] ### D5 — [1A Rectifier Diode](https://www.flux.ai/corynrobinson/1a-rectifier-diode.md) - Max Reverse Voltage: 600V - Purchase Url: https://octopart.com/s1j-e3%2F61t-vishay-39552151#CadModels - Datasheet URL: https://datasheet.octopart.com/S1J-E3-61T-Vishay-datasheet-10950683.pdf - Current: 1A - Forward Voltage: 1.1V - Capacitance: 12pF - Part Type: Diode - Manufacturer Name: Vishay - Manufacturer Part Number: S1J-E3_61T - Package or Case Code: D_SMA **Pins:** - ANODE [pin 2] - CATHODE [pin 1] ### D6 — [LED](https://www.flux.ai/jharwinbarrozo/led-tht.md) - Emission Coefficient: 3.73 - Forward Voltage: 1.70 - Breakdown Voltage: 0V - Series Resistance: 0.42Ω - Saturation Current: 93.2e-12A **Pins:** - A [pin 2] - K [pin 1] ### J1 — [2-Position Screw Terminal](https://www.flux.ai/corynrobinson/2-position-screw-terminal.md) - Datasheet URL: https://www.we-online.com/katalog/datasheet/691137710002.pdf - Manufacturer Name: Würth Elektrik - Manufacturer Part Number: 691137710002 - Part Type: Connector **Pins:** - P1 [pin 1] - P2 [pin 2] ### K1 — [SPDT Relay](https://www.flux.ai/corynrobinson/spdt-relay.md) - Contact Rating: 8A - Purchase Url: https://octopart.com/js-5-k-fujitsu-798443#Specs - Manufacturer Name: Fujitsu - Datasheet URL: https://datasheet.octopart.com/JS-5-K-Fujitsu-datasheet-1813.pdf - Manufacturer Part Number: JS-5-K - Coil Voltage: 5V **Pins:** - 3 [pin 3] - 4 [pin 4] - COM [pin 5] - NC [pin 2] - NO [pin 1] ### Q1 — [BC548BU](https://www.flux.ai/jecstronic/bc548bu.md) - Manufacturer Part Number: BC548BU - Datasheet URL: https://rocelec.widen.net/view/pdf/wnpm8l45kj/ONSM-S-A0003590719-1.pdf?t.download=true&u=5oefqw - Manufacturer Name: onsemi - Part Type: Transistor - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - B [pin 2] - C [pin 1] - E [pin 3] ### Q2 — [BC548BU](https://www.flux.ai/jecstronic/bc548bu.md) - Manufacturer Part Number: BC548BU - Datasheet URL: https://rocelec.widen.net/view/pdf/wnpm8l45kj/ONSM-S-A0003590719-1.pdf?t.download=true&u=5oefqw - Manufacturer Name: onsemi - Part Type: Transistor - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - B [pin 2] - C [pin 1] - E [pin 3] ### U1 — [7805](https://www.flux.ai/jecstronic/7805.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Integrated Circuit - Datasheet URL: https://datasheet.lcsc.com/lcsc/1912111437_Foshan-Blue-Rocket-Elec-7805_C305416.pdf - Manufacturer Name: Foshan Blue Rocket Elec - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: 7818 **Pins:** - GND [pin 2] - VI [pin 1] - VO [pin 3] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/habtsh/automatic-light-switch-by-using-ldr](https://www.flux.ai/habtsh/automatic-light-switch-by-using-ldr).* --- *Generated from [https://www.flux.ai/habtsh/automatic-light-switch-by-using-ldr](https://www.flux.ai/habtsh/automatic-light-switch-by-using-ldr)*