# Arduino Uno Smart Bin Status Shield ## Description Arduino Uno Smart Bin Status Shield: 2-layer JLCPCB-assembled Arduino shield with LEDs, buzzer MOSFET driver, reed-switch connector, and hand-soldered stacking headers. ## Project Details - **Owner:** thebriansampson - **Created:** 6/14/2026 - **Last Updated:** 6/14/2026 - **Visibility:** Public ## Key Components ### BZ1 — [MLT-8530](https://www.flux.ai/vasy_skral/mlt-8530~si8.md) - Operating Voltage: 3V~5V - Role Details: Passive SMD buzzer/transducer; connect across 5V and Q1 drain, drive D11 with tone()/PWM around 4 kHz via MOSFET low-side switch; does not beep from DC alone. - LCSC Part Number: C94599 - Manufacturer Part Number: KLJ-8530-5027 - Part Type: Buzzers - Frequency: 4kHz recommended drive; 2.7kHz nominal/resonant listing - Datasheet URL: https://www.sunrom.com/p/electromagnetic-passive-buzzer-3-5v-smd-pcb-mount-mlt-8530 - Role: Signal Generation - Manufacturer Name: Jiangsu Huaneng Elec - Package or Case Code: SMD,8.5x8.5mm - JLCPCB Part Class: Economic and Standard - Product Info Url: https://jlcpcb.com/partdetail/Jiangsu_HuanengElec-MLT8530/C94599 **Pins:** - - [pin 2] - + [pin 1] - NC [pin 4] - NC [pin 3] ### CN1 — [2.54-2*20](https://www.flux.ai/lcsc/2p54-220~216j.md) - Manufacturer Name: ZHOURI(洲日) - Exclude from Pick & Place: true - Symbol Style: parametric-v1 - Part Type: Female Headers - Datasheet URL: https://www.lcsc.com/datasheet/C2977589.pdf?spm=wm.sxq.inf.ggs&lcsc_vid=T1kIXgFeT1NaU1RXQFBbUlUHT1cKU1NXFVBeX1VSTlAxVlNeR1VeX1VXT1lbUDsOAxUeFF5JWBYZEEoKFBINSQcJGk4dAgUUFAk%3D - Role Details: Arduino Uno shield stacking header interface; only 5V, GND, D6, D8, D9, D10, D11 used; mark not assembled for JLCPCB SMT order - Package or Case Code: HDR-TH_40P-P2.54-V-F-R2-C20-S2.54 - LCSC Part Number: C2977589 - Exclude from BOM: false - Role: Connector - Manufacturer Part Number: 2.54-2*20 - JLCPCB Part Class: DNP / Hand-solder - License: https://creativecommons.org/licenses/by/4.0/ **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] ### J1 — [S2B-PH-SM4-TB(LF)(SN)](https://www.flux.ai/lcsc/s2b-ph-sm4-tblfsn~dy5m.md) - Connector Pitch: 2mm - Manufacturer Name: JST - Connector Gender: Female - Product Info Url: https://lcsc.com/product-detail/_JST-Sales-America_S2B-PH-SM4-TB-LF-SN_JST-Sales-America-S2B-PH-SM4-TB-LF-SN_C295747.html - Connector Rows: 1 - Part Type: Wire To Board / Wire To Wire Connector - Role: Lid reed switch connector - Role Details: Pin 1 to D6, pin 2 to GND; no onboard pull-up because firmware uses INPUT_PULLUP - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2102031704_JST-S2B-PH-SM4-TB-LF-SN_C295747.pdf - Connector Positions: 2 - Manufacturer Part Number: S2B-PH-SM4-TB(LF)(SN) - JLCPCB Part Class: Extended Part - Connector Type: Wire-to-board connector - LCSC Part Number: C295747 - Package or Case Code: CONN-SMD_P2.00_S2B-PH-SM4-TB-LF-SN **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] ### LED1 — [KT-0805Y](https://www.flux.ai/adrian95/kt-0805y~1fn.md) - License: https://creativecommons.org/licenses/by/4.0/ - LCSC Part Number: C2296 - Datasheet URL: https://www.lcsc.com/datasheet/C2296.pdf - Role Details: Yellow status indicator; anode driven through R1 from D8, cathode to GND; polarized 0805 LED, LCSC C2296 - Manufacturer Part Number: KT-0805Y - Role: Human Interface - Part Type: LED - Manufacturer Name: Hubei KENTO Elec **Pins:** - A [pin 2] - K [pin 1] ### LED2 — [KT-0805Y](https://www.flux.ai/adrian95/kt-0805y~1fn.md) - Manufacturer Name: Hubei KENTO Elec - Part Type: LED - Role: Human Interface - Role Details: Yellow status indicator; anode driven through R2 from D9, cathode to GND; polarized 0805 LED, LCSC C2296 - Manufacturer Part Number: KT-0805Y - LCSC Part Number: C2296 - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.lcsc.com/datasheet/C2296.pdf **Pins:** - A [pin 2] - K [pin 1] ### LED3 — [HSMC-C170](https://www.flux.ai/adrian95/hsmc-c170~5ul.md) - Manufacturer Part Number: HSMC-C170 - Manufacturer Name: Broadcom Limited - Datasheet URL: https://docs.broadcom.com/docs/AV02-0112EN - Part Type: LED - Package or Case Code: LED_HSMC-C170 - License: https://creativecommons.org/licenses/by/4.0/ - Role: Human Interface - Role Details: Red status indicator; anode driven through R3 from D10, cathode to GND; verify polarity before release **Pins:** - ~ [pin A] - ~ [pin C] ### Q1 — [2N7002](https://www.flux.ai/lcsc/2n7002~13ip.md) - Product Info Url: https://lcsc.com/product-detail/MOSFET_MDD-Microdiode-Electronics-2N7002_C472906.html - Continuous Drain Current: 200mA at 25°C - Transistor Type: N-channel MOSFET - Manufacturer Part Number: 2N7002 - Drain to Source Voltage: 60V - Part Type: MOSFETs - JLCPCB Part Class: Extended Part - Role Details: 2N7002 N-MOSFET switches BZ1 negative terminal to GND from Arduino D11 - LCSC Part Number: C472906 - Role: Switching - Package or Case Code: SOT-23-3_L2.9-W1.5-P1.90-LS2.6-BR - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2407101108_MDD-Microdiode-Semiconductor-2N7002_C472906.pdf - Manufacturer Name: MDD(辰达半导体) **Pins:** - D [pin 3] - G [pin 1] - S [pin 2] ### Rg — [Generic Resistor](https://www.flux.ai/jharwinbarrozo/generic-resistor~3e.md) - Role Details: 220Ω series resistor from Arduino D11 to Q1 gate - Resistance: 220Ω - LCSC Part Number: C17557 - Package: SMD_0805_2012Metric - Manufacturer Name: UNI-ROYAL(厚声) - JLCPCB Part Class: Basic Part - Part Type: Resistor - Role: Snubber / Damping - Manufacturer Part Number: 0805W8F2200T5E **Pins:** - P1 [pin 1] - P2 [pin 2] ### Rpd — [Generic Resistor](https://www.flux.ai/jharwinbarrozo/generic-resistor~3e.md) - Manufacturer Name: UNI-ROYAL(厚声) - Part Type: Resistor - Role: Pull Up / Down - Role Details: 10kΩ pulldown keeps Q1 gate low while Arduino resets - Manufacturer Part Number: 0805W8F1002T5E - JLCPCB Part Class: Basic Part - Resistance: 10kΩ - LCSC Part Number: C17414 - Package: SMD_0805_2012Metric **Pins:** - P1 [pin 1] - P2 [pin 2] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/thebriansampson/arduino-uno-smart-bin-status-shield~nl](https://www.flux.ai/thebriansampson/arduino-uno-smart-bin-status-shield~nl).* --- *Generated from [https://www.flux.ai/thebriansampson/arduino-uno-smart-bin-status-shield~nl](https://www.flux.ai/thebriansampson/arduino-uno-smart-bin-status-shield~nl)*