# KEY PAD x 24 v4 ANGOSTO ## Description This module involves the design of a keypad lock system. It utilizes an ATMEGA328P microcontroller, buzzers, LEDs for indicator functions and a 4x3 matrix keypad. An in-circuit serial programming (ISP) header is also present for programming the microcontroller. #template #lock #keypad #reusable #module #simple-embedded #microchip #arduino #atmega328 #TPS613222A #ISP #buzzer #sublayout ## Project Details - **Owner:** thgiga - **Created:** 8/18/2025 - **Last Updated:** 12/9/2025 - **Visibility:** Public - **License:** https://creativecommons.org/licenses/by/4.0/ - **Copies:** 3 ## Key Components ### — M3 Mounting Hole - Product Info Url: https://www.mcmaster.com/screws/drive-style~torx/rounded-head-style~pan/material~steel/specifications-met~iso-7045/thread-size~m3/finish~zinc-plated/ **Pins:** - terminal ### — [M3 Mounting Hole](https://www.flux.ai/vasyl/m3-mounting-hole~kc3.md) - Product Info Url: https://www.mcmaster.com/screws/drive-style~torx/rounded-head-style~pan/material~steel/specifications-met~iso-7045/thread-size~m3/finish~zinc-plated/ **Pins:** - terminal ### — [M3 Mounting Hole](https://www.flux.ai/vasyl/m3-mounting-hole~kc3.md) - Product Info Url: https://www.mcmaster.com/screws/drive-style~torx/rounded-head-style~pan/material~steel/specifications-met~iso-7045/thread-size~m3/finish~zinc-plated/ **Pins:** - terminal ### — [M3 Mounting Hole](https://www.flux.ai/vasyl/m3-mounting-hole~kc3.md) - Product Info Url: https://www.mcmaster.com/screws/drive-style~torx/rounded-head-style~pan/material~steel/specifications-met~iso-7045/thread-size~m3/finish~zinc-plated/ **Pins:** - terminal ### D10 — [1N4733A](https://www.flux.ai/lcsc/1n4733a~w54p.md) - LCSC Part Number: C140851 - Product Info Url: https://lcsc.com/product-detail/Zener-Diodes_ON_1N4733A_1N4733A_C140851.html - JLCPCB Part Class: Extended Part - Manufacturer Part Number: 1N4733A - Manufacturer Name: onsemi(安森美) - Package or Case Code: DO-41_BD2.4-L4.7-P8.70-D0.9-RD - Datasheet URL: https://www.lcsc.com/datasheet/lcsc_datasheet_2410010303_onsemi-1N4733A_C140851.pdf - Part Type: Zener Diodes **Pins:** - A [pin 2] - C [pin 1] ### D11 — [1N4733A](https://www.flux.ai/lcsc/1n4733a~w54p.md) - JLCPCB Part Class: Extended Part - LCSC Part Number: C140851 - Product Info Url: https://lcsc.com/product-detail/Zener-Diodes_ON_1N4733A_1N4733A_C140851.html - Manufacturer Part Number: 1N4733A - Manufacturer Name: onsemi(安森美) - Package or Case Code: DO-41_BD2.4-L4.7-P8.70-D0.9-RD - Datasheet URL: https://www.lcsc.com/datasheet/lcsc_datasheet_2410010303_onsemi-1N4733A_C140851.pdf - Part Type: Zener Diodes **Pins:** - A [pin 2] - C [pin 1] ### D12 — [1N4733A](https://www.flux.ai/lcsc/1n4733a~w54p.md) - Datasheet URL: https://www.lcsc.com/datasheet/lcsc_datasheet_2410010303_onsemi-1N4733A_C140851.pdf - Package or Case Code: DO-41_BD2.4-L4.7-P8.70-D0.9-RD - Part Type: Zener Diodes - Product Info Url: https://lcsc.com/product-detail/Zener-Diodes_ON_1N4733A_1N4733A_C140851.html - LCSC Part Number: C140851 - JLCPCB Part Class: Extended Part - Manufacturer Name: onsemi(安森美) - Manufacturer Part Number: 1N4733A **Pins:** - A [pin 2] - C [pin 1] ### D13 — [1N4733A](https://www.flux.ai/lcsc/1n4733a~w54p.md) - Part Type: Zener Diodes - Package or Case Code: DO-41_BD2.4-L4.7-P8.70-D0.9-RD - Datasheet URL: https://www.lcsc.com/datasheet/lcsc_datasheet_2410010303_onsemi-1N4733A_C140851.pdf - Manufacturer Part Number: 1N4733A - Manufacturer Name: onsemi(安森美) - JLCPCB Part Class: Extended Part - LCSC Part Number: C140851 - Product Info Url: https://lcsc.com/product-detail/Zener-Diodes_ON_1N4733A_1N4733A_C140851.html **Pins:** - A [pin 2] - C [pin 1] ### D14 — [1N4733A](https://www.flux.ai/lcsc/1n4733a~w54p.md) - Product Info Url: https://lcsc.com/product-detail/Zener-Diodes_ON_1N4733A_1N4733A_C140851.html - LCSC Part Number: C140851 - JLCPCB Part Class: Extended Part - Manufacturer Name: onsemi(安森美) - Manufacturer Part Number: 1N4733A - Datasheet URL: https://www.lcsc.com/datasheet/lcsc_datasheet_2410010303_onsemi-1N4733A_C140851.pdf - Package or Case Code: DO-41_BD2.4-L4.7-P8.70-D0.9-RD - Part Type: Zener Diodes **Pins:** - A [pin 2] - C [pin 1] ### D15 — [1N4733A](https://www.flux.ai/lcsc/1n4733a~w54p.md) - Manufacturer Name: onsemi(安森美) - Manufacturer Part Number: 1N4733A - Product Info Url: https://lcsc.com/product-detail/Zener-Diodes_ON_1N4733A_1N4733A_C140851.html - LCSC Part Number: C140851 - JLCPCB Part Class: Extended Part - Part Type: Zener Diodes - Datasheet URL: https://www.lcsc.com/datasheet/lcsc_datasheet_2410010303_onsemi-1N4733A_C140851.pdf - Package or Case Code: DO-41_BD2.4-L4.7-P8.70-D0.9-RD **Pins:** - A [pin 2] - C [pin 1] ### D16 — [1N4733A](https://www.flux.ai/lcsc/1n4733a~w54p.md) - Manufacturer Part Number: 1N4733A - Manufacturer Name: onsemi(安森美) - LCSC Part Number: C140851 - Product Info Url: https://lcsc.com/product-detail/Zener-Diodes_ON_1N4733A_1N4733A_C140851.html - JLCPCB Part Class: Extended Part - Part Type: Zener Diodes - Package or Case Code: DO-41_BD2.4-L4.7-P8.70-D0.9-RD - Datasheet URL: https://www.lcsc.com/datasheet/lcsc_datasheet_2410010303_onsemi-1N4733A_C140851.pdf **Pins:** - A [pin 2] - C [pin 1] ### D17 — [1N4733A](https://www.flux.ai/lcsc/1n4733a~w54p.md) - Part Type: Zener Diodes - Datasheet URL: https://www.lcsc.com/datasheet/lcsc_datasheet_2410010303_onsemi-1N4733A_C140851.pdf - Package or Case Code: DO-41_BD2.4-L4.7-P8.70-D0.9-RD - Manufacturer Name: onsemi(安森美) - Manufacturer Part Number: 1N4733A - JLCPCB Part Class: Extended Part - Product Info Url: https://lcsc.com/product-detail/Zener-Diodes_ON_1N4733A_1N4733A_C140851.html - LCSC Part Number: C140851 **Pins:** - A [pin 2] - C [pin 1] ### D18 — [1N4733A](https://www.flux.ai/lcsc/1n4733a~w54p.md) - Part Type: Zener Diodes - Datasheet URL: https://www.lcsc.com/datasheet/lcsc_datasheet_2410010303_onsemi-1N4733A_C140851.pdf - Package or Case Code: DO-41_BD2.4-L4.7-P8.70-D0.9-RD - Manufacturer Name: onsemi(安森美) - Manufacturer Part Number: 1N4733A - Product Info Url: https://lcsc.com/product-detail/Zener-Diodes_ON_1N4733A_1N4733A_C140851.html - LCSC Part Number: C140851 - JLCPCB Part Class: Extended Part **Pins:** - A [pin 2] - C [pin 1] ### D19 — [1N4733A](https://www.flux.ai/lcsc/1n4733a~w54p.md) - JLCPCB Part Class: Extended Part - LCSC Part Number: C140851 - Product Info Url: https://lcsc.com/product-detail/Zener-Diodes_ON_1N4733A_1N4733A_C140851.html - Manufacturer Part Number: 1N4733A - Manufacturer Name: onsemi(安森美) - Package or Case Code: DO-41_BD2.4-L4.7-P8.70-D0.9-RD - Datasheet URL: https://www.lcsc.com/datasheet/lcsc_datasheet_2410010303_onsemi-1N4733A_C140851.pdf - Part Type: Zener Diodes **Pins:** - A [pin 2] - C [pin 1] ### D2 — [1N4733A](https://www.flux.ai/lcsc/1n4733a~w54p.md) - Package or Case Code: DO-41_BD2.4-L4.7-P8.70-D0.9-RD - Datasheet URL: https://www.lcsc.com/datasheet/lcsc_datasheet_2410010303_onsemi-1N4733A_C140851.pdf - Part Type: Zener Diodes - JLCPCB Part Class: Extended Part - LCSC Part Number: C140851 - Product Info Url: https://lcsc.com/product-detail/Zener-Diodes_ON_1N4733A_1N4733A_C140851.html - Manufacturer Part Number: 1N4733A - Manufacturer Name: onsemi(安森美) **Pins:** - A [pin 2] - C [pin 1] ### D20 — [1N4733A](https://www.flux.ai/lcsc/1n4733a~w54p.md) - Package or Case Code: DO-41_BD2.4-L4.7-P8.70-D0.9-RD - Datasheet URL: https://www.lcsc.com/datasheet/lcsc_datasheet_2410010303_onsemi-1N4733A_C140851.pdf - Part Type: Zener Diodes - JLCPCB Part Class: Extended Part - LCSC Part Number: C140851 - Product Info Url: https://lcsc.com/product-detail/Zener-Diodes_ON_1N4733A_1N4733A_C140851.html - Manufacturer Part Number: 1N4733A - Manufacturer Name: onsemi(安森美) **Pins:** - A [pin 2] - C [pin 1] ### D21 — [1N4733A](https://www.flux.ai/lcsc/1n4733a~w54p.md) - Part Type: Zener Diodes - Datasheet URL: https://www.lcsc.com/datasheet/lcsc_datasheet_2410010303_onsemi-1N4733A_C140851.pdf - Package or Case Code: DO-41_BD2.4-L4.7-P8.70-D0.9-RD - Manufacturer Name: onsemi(安森美) - Manufacturer Part Number: 1N4733A - Product Info Url: https://lcsc.com/product-detail/Zener-Diodes_ON_1N4733A_1N4733A_C140851.html - LCSC Part Number: C140851 - JLCPCB Part Class: Extended Part **Pins:** - A [pin 2] - C [pin 1] ### D22 — [1N4733A](https://www.flux.ai/lcsc/1n4733a~w54p.md) - LCSC Part Number: C140851 - Product Info Url: https://lcsc.com/product-detail/Zener-Diodes_ON_1N4733A_1N4733A_C140851.html - JLCPCB Part Class: Extended Part - Manufacturer Part Number: 1N4733A - Manufacturer Name: onsemi(安森美) - Package or Case Code: DO-41_BD2.4-L4.7-P8.70-D0.9-RD - Datasheet URL: https://www.lcsc.com/datasheet/lcsc_datasheet_2410010303_onsemi-1N4733A_C140851.pdf - Part Type: Zener Diodes **Pins:** - A [pin 2] - C [pin 1] ### D23 — [1N4733A](https://www.flux.ai/lcsc/1n4733a~w54p.md) - Package or Case Code: DO-41_BD2.4-L4.7-P8.70-D0.9-RD - Datasheet URL: https://www.lcsc.com/datasheet/lcsc_datasheet_2410010303_onsemi-1N4733A_C140851.pdf - Part Type: Zener Diodes - JLCPCB Part Class: Extended Part - LCSC Part Number: C140851 - Product Info Url: https://lcsc.com/product-detail/Zener-Diodes_ON_1N4733A_1N4733A_C140851.html - Manufacturer Part Number: 1N4733A - Manufacturer Name: onsemi(安森美) **Pins:** - A [pin 2] - C [pin 1] ### D24 — [1N4733A](https://www.flux.ai/lcsc/1n4733a~w54p.md) - JLCPCB Part Class: Extended Part - Product Info Url: https://lcsc.com/product-detail/Zener-Diodes_ON_1N4733A_1N4733A_C140851.html - LCSC Part Number: C140851 - Manufacturer Name: onsemi(安森美) - Manufacturer Part Number: 1N4733A - Datasheet URL: https://www.lcsc.com/datasheet/lcsc_datasheet_2410010303_onsemi-1N4733A_C140851.pdf - Package or Case Code: DO-41_BD2.4-L4.7-P8.70-D0.9-RD - Part Type: Zener Diodes **Pins:** - A [pin 2] - C [pin 1] ### D25 — [1N4733A](https://www.flux.ai/lcsc/1n4733a~w54p.md) - JLCPCB Part Class: Extended Part - Product Info Url: https://lcsc.com/product-detail/Zener-Diodes_ON_1N4733A_1N4733A_C140851.html - LCSC Part Number: C140851 - Manufacturer Name: onsemi(安森美) - Manufacturer Part Number: 1N4733A - Datasheet URL: https://www.lcsc.com/datasheet/lcsc_datasheet_2410010303_onsemi-1N4733A_C140851.pdf - Package or Case Code: DO-41_BD2.4-L4.7-P8.70-D0.9-RD - Part Type: Zener Diodes **Pins:** - A [pin 2] - C [pin 1] ### D3 — [1N4733A](https://www.flux.ai/lcsc/1n4733a~w54p.md) - Manufacturer Part Number: 1N4733A - Manufacturer Name: onsemi(安森美) - LCSC Part Number: C140851 - Product Info Url: https://lcsc.com/product-detail/Zener-Diodes_ON_1N4733A_1N4733A_C140851.html - JLCPCB Part Class: Extended Part - Part Type: Zener Diodes - Package or Case Code: DO-41_BD2.4-L4.7-P8.70-D0.9-RD - Datasheet URL: https://www.lcsc.com/datasheet/lcsc_datasheet_2410010303_onsemi-1N4733A_C140851.pdf **Pins:** - A [pin 2] - C [pin 1] ### D4 — [1N4733A](https://www.flux.ai/lcsc/1n4733a~w54p.md) - Manufacturer Name: onsemi(安森美) - Manufacturer Part Number: 1N4733A - Product Info Url: https://lcsc.com/product-detail/Zener-Diodes_ON_1N4733A_1N4733A_C140851.html - LCSC Part Number: C140851 - JLCPCB Part Class: Extended Part - Part Type: Zener Diodes - Datasheet URL: https://www.lcsc.com/datasheet/lcsc_datasheet_2410010303_onsemi-1N4733A_C140851.pdf - Package or Case Code: DO-41_BD2.4-L4.7-P8.70-D0.9-RD **Pins:** - A [pin 2] - C [pin 1] ### D5 — [1N4733A](https://www.flux.ai/lcsc/1n4733a~w54p.md) - Product Info Url: https://lcsc.com/product-detail/Zener-Diodes_ON_1N4733A_1N4733A_C140851.html - LCSC Part Number: C140851 - JLCPCB Part Class: Extended Part - Manufacturer Name: onsemi(安森美) - Manufacturer Part Number: 1N4733A - Datasheet URL: https://www.lcsc.com/datasheet/lcsc_datasheet_2410010303_onsemi-1N4733A_C140851.pdf - Package or Case Code: DO-41_BD2.4-L4.7-P8.70-D0.9-RD - Part Type: Zener Diodes **Pins:** - A [pin 2] - C [pin 1] ### D6 — [1N4733A](https://www.flux.ai/lcsc/1n4733a~w54p.md) - Manufacturer Part Number: 1N4733A - Manufacturer Name: onsemi(安森美) - JLCPCB Part Class: Extended Part - LCSC Part Number: C140851 - Product Info Url: https://lcsc.com/product-detail/Zener-Diodes_ON_1N4733A_1N4733A_C140851.html - Part Type: Zener Diodes - Package or Case Code: DO-41_BD2.4-L4.7-P8.70-D0.9-RD - Datasheet URL: https://www.lcsc.com/datasheet/lcsc_datasheet_2410010303_onsemi-1N4733A_C140851.pdf **Pins:** - A [pin 2] - C [pin 1] ### D7 — [1N4733A](https://www.flux.ai/lcsc/1n4733a~w54p.md) - Manufacturer Part Number: 1N4733A - Manufacturer Name: onsemi(安森美) - JLCPCB Part Class: Extended Part - LCSC Part Number: C140851 - Product Info Url: https://lcsc.com/product-detail/Zener-Diodes_ON_1N4733A_1N4733A_C140851.html - Part Type: Zener Diodes - Package or Case Code: DO-41_BD2.4-L4.7-P8.70-D0.9-RD - Datasheet URL: https://www.lcsc.com/datasheet/lcsc_datasheet_2410010303_onsemi-1N4733A_C140851.pdf **Pins:** - A [pin 2] - C [pin 1] ### D8 — [1N4733A](https://www.flux.ai/lcsc/1n4733a~w54p.md) - Manufacturer Name: onsemi(安森美) - Manufacturer Part Number: 1N4733A - Product Info Url: https://lcsc.com/product-detail/Zener-Diodes_ON_1N4733A_1N4733A_C140851.html - LCSC Part Number: C140851 - JLCPCB Part Class: Extended Part - Part Type: Zener Diodes - Datasheet URL: https://www.lcsc.com/datasheet/lcsc_datasheet_2410010303_onsemi-1N4733A_C140851.pdf - Package or Case Code: DO-41_BD2.4-L4.7-P8.70-D0.9-RD **Pins:** - A [pin 2] - C [pin 1] ### D9 — [1N4733A](https://www.flux.ai/lcsc/1n4733a~w54p.md) - Manufacturer Part Number: 1N4733A - Manufacturer Name: onsemi(安森美) - LCSC Part Number: C140851 - Product Info Url: https://lcsc.com/product-detail/Zener-Diodes_ON_1N4733A_1N4733A_C140851.html - JLCPCB Part Class: Extended Part - Part Type: Zener Diodes - Package or Case Code: DO-41_BD2.4-L4.7-P8.70-D0.9-RD - Datasheet URL: https://www.lcsc.com/datasheet/lcsc_datasheet_2410010303_onsemi-1N4733A_C140851.pdf **Pins:** - A [pin 2] - C [pin 1] ### LED1 — [LED-THT-3MM](https://www.flux.ai/vasy_skral/led-tht-3mm~34u.md) - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### LED10 — [LED-THT-3MM](https://www.flux.ai/vasy_skral/led-tht-3mm~34u.md) - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### LED11 — [LED-THT-3MM](https://www.flux.ai/vasy_skral/led-tht-3mm~34u.md) - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### LED12 — [LED-THT-3MM](https://www.flux.ai/vasy_skral/led-tht-3mm~34u.md) - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### LED13 — [LED-THT-3MM](https://www.flux.ai/vasy_skral/led-tht-3mm~34u.md) - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### LED14 — [LED-THT-3MM](https://www.flux.ai/vasy_skral/led-tht-3mm~34u.md) - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### LED15 — [LED-THT-3MM](https://www.flux.ai/vasy_skral/led-tht-3mm~34u.md) - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### LED16 — [LED-THT-3MM](https://www.flux.ai/vasy_skral/led-tht-3mm~34u.md) - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### LED17 — [LED-THT-3MM](https://www.flux.ai/vasy_skral/led-tht-3mm~34u.md) - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### LED18 — [LED-THT-3MM](https://www.flux.ai/vasy_skral/led-tht-3mm~34u.md) - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### LED19 — [LED-THT-3MM](https://www.flux.ai/vasy_skral/led-tht-3mm~34u.md) - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### LED2 — [LED-THT-3MM](https://www.flux.ai/vasy_skral/led-tht-3mm~34u.md) - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### LED20 — [LED-THT-3MM](https://www.flux.ai/vasy_skral/led-tht-3mm~34u.md) - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### LED21 — [LED-THT-3MM](https://www.flux.ai/vasy_skral/led-tht-3mm~34u.md) - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### LED22 — [LED-THT-3MM](https://www.flux.ai/vasy_skral/led-tht-3mm~34u.md) - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### LED23 — [LED-THT-3MM](https://www.flux.ai/vasy_skral/led-tht-3mm~34u.md) - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### LED24 — [LED-THT-3MM](https://www.flux.ai/vasy_skral/led-tht-3mm~34u.md) - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### LED3 — [LED-THT-3MM](https://www.flux.ai/vasy_skral/led-tht-3mm~34u.md) - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### LED4 — [LED-THT-3MM](https://www.flux.ai/vasy_skral/led-tht-3mm~34u.md) - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### LED5 — [LED-THT-3MM](https://www.flux.ai/vasy_skral/led-tht-3mm~34u.md) - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### LED6 — [LED-THT-3MM](https://www.flux.ai/vasy_skral/led-tht-3mm~34u.md) - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### LED7 — [LED-THT-3MM](https://www.flux.ai/vasy_skral/led-tht-3mm~34u.md) - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### LED8 — [LED-THT-3MM](https://www.flux.ai/vasy_skral/led-tht-3mm~34u.md) - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### LED9 — [LED-THT-3MM](https://www.flux.ai/vasy_skral/led-tht-3mm~34u.md) - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### SW1 — Kailh Speed Copper - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: LED **Pins:** - 1 [pin 1] - 2 [pin 2] ### SW10 — Kailh Speed Copper - Part Type: LED - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - 1 [pin 1] - 2 [pin 2] ### SW11 — Kailh Speed Copper - Part Type: LED - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - 1 [pin 1] - 2 [pin 2] ### SW12 — Kailh Speed Copper - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: LED **Pins:** - 1 [pin 1] - 2 [pin 2] ### SW13 — Kailh Speed Copper - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: LED **Pins:** - 1 [pin 1] - 2 [pin 2] ### SW14 — Kailh Speed Copper - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: LED **Pins:** - 1 [pin 1] - 2 [pin 2] ### SW15 — Kailh Speed Copper - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: LED **Pins:** - 1 [pin 1] - 2 [pin 2] ### SW16 — Kailh Speed Copper - Part Type: LED - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - 1 [pin 1] - 2 [pin 2] ### SW17 — Kailh Speed Copper - Part Type: LED - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - 1 [pin 1] - 2 [pin 2] ### SW18 — Kailh Speed Copper - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: LED **Pins:** - 1 [pin 1] - 2 [pin 2] ### SW19 — Kailh Speed Copper - Part Type: LED - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - 1 [pin 1] - 2 [pin 2] ### SW2 — Kailh Speed Copper - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: LED **Pins:** - 1 [pin 1] - 2 [pin 2] ### SW20 — Kailh Speed Copper - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: LED **Pins:** - 1 [pin 1] - 2 [pin 2] ### SW21 — Kailh Speed Copper - Part Type: LED - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - 1 [pin 1] - 2 [pin 2] ### SW22 — Kailh Speed Copper - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: LED **Pins:** - 1 [pin 1] - 2 [pin 2] ### SW23 — Kailh Speed Copper - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: LED **Pins:** - 1 [pin 1] - 2 [pin 2] ### SW24 — Kailh Speed Copper - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: LED **Pins:** - 1 [pin 1] - 2 [pin 2] ### SW3 — Kailh Speed Copper - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: LED **Pins:** - 1 [pin 1] - 2 [pin 2] ### SW4 — Kailh Speed Copper - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: LED **Pins:** - 1 [pin 1] - 2 [pin 2] ### SW5 — Kailh Speed Copper - Part Type: LED - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - 1 [pin 1] - 2 [pin 2] ### SW6 — Kailh Speed Copper - Part Type: LED - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - 1 [pin 1] - 2 [pin 2] ### SW7 — Kailh Speed Copper - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: LED **Pins:** - 1 [pin 1] - 2 [pin 2] ### SW8 — Kailh Speed Copper - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: LED **Pins:** - 1 [pin 1] - 2 [pin 2] ### SW9 — Kailh Speed Copper - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: LED **Pins:** - 1 [pin 1] - 2 [pin 2] ### U1 — [Seeed Studio XIAO ESP32C3](https://www.flux.ai/seeedstudio/seeed-studio-xiao-esp32c3~b0.md) - Datasheet URL: https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/esp32-c3_datasheet.pdf - Manufacturer Part Number: 113991054 - Part Type: Microcontroller - Purchase Url: https://www.seeedstudio.com/Seeed-XIAO-ESP32C3-p-5431.html - Manufacturer Name: Seeed Studio **Pins:** - 3V3 [pin 12] - 5V [pin 14] - D10_MOSI_D10 [pin 11] - D7_RX_GPIO20 [pin 8] - D8_SCK_GPIO8 [pin 9] - D9_MISO_GPIO9 [pin 10] - GND [pin 13] - GPIO2_A0_D0 [pin 1] - GPIO21_TX_D6 [pin 7] - GPIO3_A1_D1 [pin 2] - GPIO4_A2_D2 [pin 3] - GPIO5_A3_D3 [pin 4] - GPIO6_SDA_D4 [pin 5] - GPIO7_SCL_D5 [pin 6] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/thgiga/key-pad-x-24-v4-angosto~vp](https://www.flux.ai/thgiga/key-pad-x-24-v4-angosto~vp).* --- *Generated from [https://www.flux.ai/thgiga/key-pad-x-24-v4-angosto~vp](https://www.flux.ai/thgiga/key-pad-x-24-v4-angosto~vp)*