Welcome to your new project. Imagine what you can build here.

Welcome to your new project. Imagine what you can build here.

Light Detection: The LDR detects the ambient light level. When it is dark, the resistance of the LDR is high, resulting in a higher voltage at the inverting input (pin 2) of the op-amp. Comparison: The op-amp compares the voltage at pin 2 with the reference voltage set at pin 3 by the potentiometer (R3). If the voltage at pin 2 is higher than the reference voltage at pin 3 (indicating darkness), the op-amp output goes high. Transistor Activation: The high output from the op-amp turns on the transistor (Q1) by providing base current through R4. Relay Activation: When Q1 is turned on, current flows through the relay coil, energizing it and closing the relay contacts. Lamp Operation: The closed relay contacts complete the AC circuit, allowing current to flow and turning on the lamp (LA1). Light Detection (Daytime): When it is light, the resistance of the LDR decreases, resulting in a lower voltage at pin 2 of the op-amp. If this voltage is lower than the reference voltage at pin 3, the op-amp output goes low, turning off Q1, de-energizing the relay, and turning off the lampWelcome to your new project. Imagine what you can build here.

Four-phase 0.5–100 V, 0–40 A programmable CV/CC bench supply architecture. High-power AC/DC modules and contactors are modeled as off-board interfaces; the PCB schematic focuses on buck power stages, control, sensing, protection, and auxiliary rails.

Automated NiCad battery tester for calibration lab. Tests all 12 cells of a meter's battery pack in situ (no disconnect) under a 150 ▎ Ω / 15-min timed load. Per-cell measurement via 13 pogo contacts (7 rail + 6 V-gap junctions) into 4× ADS1115 over I²C. ESP32-S3 controls a logic-level MOSFET for load ▎ switching. Wirelessly prints PCL5 reports to an HP printer and ZPL labels to a Zebra. Production target: 10–12 units. Bench rig already validated; this is the production PCB.

Manufacturable Rev A proof-of-concept PCB system for the SOLX modular magnetic lamp platform, documenting a standardized magnetic pogo-pin electrical pass-through interface, 12V low-voltage power transfer, reserved data/ID contacts, module identification support, automatic configuration recognition, lifecycle metadata tracking capability, and patent-supporting manufacturing/test documentation.

36 V Contactor Coil Driver with Safe Kill Loop, 3.3 V Logic, SPI IMU, 24 V/5 A Buck, and ESP32 IO12-Driven E-Stop MOSFET via Series PH2.0 Safety Connectors #E_STOP #MOSFET #PH2.0 #SAFETY

Experience the future of networking with the PCB Business Card V2 – a state-of-the-art smart business card designed to boost your professional presence. This innovative PCB integrates advanced NFC technology to instantly connect contacts to your digital portfolio while showcasing a suite of highly optimized hardware modules. > Enjoy precise 13.56MHz tuning, larger and clearer instructional fonts, and enhanced backside features for seamless setup and practical usage. Whether you're at tech expos, business conferences, or networking events, this sleek design offers detailed build instructions and an optimized bill of materials to elevate your DIY electronics experience. Step into next-generation personal branding and make a memorable impression with this cutting-edge smart business card. #SmartBusinessCard #NFC #PCBDesign #TechInnovation #Networking #DIYElectronics

+12V/24V (Llave de contacto) │ ├───▶ Pin 8 (VCC) y Pin 4 (Reset) del NE555 │ ├───▶ Potenciómetro (100kΩ) ───▶ R1 (10kΩ) ───▶ Pines 6 y 7 │ │ │ ▼ ├───▶ C1 (47µF) ───▶ GND │ │ │ └───▶ Pin 2 (Trigger) │ ├───▶ Pin 3 (Output) ───▶ R3 (1kΩ) ───▶ Puerta (G) del MOSFET │ │ │ │ ├───▶ R2 (220Ω) ───▶ LED rojo ───▶ GND │ │ │ ▼ │ MOSFET (5N60C) ───▶ Bobina del Relé ───▶ GND │ │ │ ▼ │ Bujía de precalentamiento │ │ │ ▼ │ +12V/24V (Batería) │ └───▶ D1 (1N4007) en paralelo con la bobina del relé.

Experience the future of networking with the PCB Business Card V2 – a state-of-the-art smart business card designed to boost your professional presence. This innovative PCB integrates advanced NFC technology to instantly connect contacts to your digital portfolio while showcasing a suite of highly optimized hardware modules. Enjoy precise 13.56MHz tuning, larger and clearer instructional fonts, and enhanced backside features for seamless setup and practical usage. Whether you're at tech expos, business conferences, or networking events, this sleek design offers detailed build instructions and an optimized bill of materials to elevate your DIY electronics experience. Step into next-generation personal branding and make a memorable impression with this cutting-edge smart business card. #SmartBusinessCard #NFC #PCBDesign #TechInnovation #Networking #DIYElectronics

32 Position FFC, FPC Connector Contacts, Bottom 0.039" (1.00mm) Surface Mount, Right Angle

50 Position FPC Connector Contacts, Bottom 0.020" (0.50mm) Surface Mount, Right Angle #CommonPartsLibrary #Connector #FFC #FPC #OPU #62684

This surface-mount edge connector is designed specifically for the micro:bit. It's very slim and fully SMT. It also only has contacts on one side, just like the 'bit. This version is a Straight style where the micro:bit plugs-in perpendicular to the PCB.

conectar esto componentes • 1 temporizador 555 (IC1) • 2 circuitos integrados CMOS 4026B – Contador de décadas y decodificador a 7 segmentos (IC2, IC3) • 2 display 7 de segmentos cátodo común (DS1, DS2) • 3 condensadores cerámicos de 0.047 uF (microfaradios) (C1, C2, C3) • 1 resistencia de 10 K, 1/4 W (R1) • 1 resistencia de 1 M, 1/4 W (R2) • 1 resistencia de 33 K, 1/4 W (R3) • 2 interruptores normalmente abierto (NA) de contacto momentáneo. (SW1, SW2).

100 Position Connector Receptacle, Center Strip Contacts Surface Mount Gold #CommonPartsLibrary #Connector #Rectangular-Connector #Array #Edge-Type #Mezzanine #DF40C

50 Position FPC Connector Contacts, Bottom 0.020" (0.50mm) Surface Mount, Right Angle #CommonPartsLibrary #Connector #FFC #FPC #OPU #62684