Project Outline: Microcontroller RTC Dosimeter Op Amp Stage See DigiKey BoM for the Analog FrontEnd: www.digikey.com/en/mylists/list/476AJE8R2I

Requirements: -Daytime Operation Only -Track Bee Input/Output Directionality -Connects to House via WiFi TODO: -Connect EN high or low on MPPT IC -Finish Routing -Check Fill Thing Features: -MPPT Solar Power Conditioning -96% efficient IR LED Drive Next Version Feature Wants: Microphone!

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

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

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

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

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

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

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

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

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

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

s

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

Dual-rail carrier-board power supply with protected 7V to 16V DC input, 5V 5A primary buck rail, and 3.3V 3A modem buck rail.

Preamplificador dual de bajo ruido para contrabajo con dos canales piezo independientes: canal UP con sensor LDTM-028K y canal DOWN con dos LDT0-028K en paralelo, alimentado con batería de 9 V y usando exclusivamente OPA1642. Incluye buffers de entrada de ultra alta impedancia (>=20 MOhm), control de ganancia independiente, filtrado HPF 20-30 Hz y LPF 15-18 kHz, ecualización activa de 3 bandas por canal, protección contra inversión de polaridad, filtrado RF en entradas, desacoplo 100 nF + 10 uF por rail por amplificador, topología de star ground, salidas SMA separadas compatibles con Fishman Presys Blend 301, objetivo de consumo total <5 mA, impedancia de salida <3.5 kOhm, nivel nominal de salida 0.25 V RMS y máximo 1 V RMS sin distorsión. Diseño listo para PCB y fabricación con enfoque de ruido mínimo.

Compact USB-C 5 V smart film sample controller that generates a selectable 60–80 VAC bipolar output for up to about 1 ft² of PDLC film, with automatic 1 s clear / 1 s frosted cycling and safety-focused high-voltage design.

Circuito digital puro a 5 V con un único pulsador para avance por toque corto, confirmación por toque largo de 2 s, visualización de 4 opciones por LED y transmisión DTMF mediante HT9200A.

Battery-Powered IoT MQTT Notifier with USB-C Power-Path Charging, Multi-Rail Power Architecture, and 3 s Long-Press PFET Power-Gate (MP5014 + LTC2955 + MCU SYS_EN Override) #power_control #long_press #load_switch #sys_en

The AO3414 from Alpha & Omega Semiconductor is a N-channel enhancement mode field-effect transistor (FET) that utilizes advanced trench technology to offer exceptional performance characteristics, including low RDS(ON), minimal gate charge, and compatibility with gate voltages as low as 1.8V. This component is specifically designed for use in load-switching and PWM applications. The AO3414 is a Pb-free product meeting ROHS and Sony 259 specifications, with an option for a Green Product under part number AO3414L. Both variants are electrically identical. Key specifications include a drain-source voltage (VDS) of 20V, a continuous drain current (ID) of 4.2A at VGS=4.5V, and various RDS(ON) values depending on the gate voltage, with a maximum of 87mΩ at VGS=1.8V. Encased in the TO-236 (SOT-23) package, the AO3414 features a maximum power dissipation of 1.4W at 25℃ and a junction-to-ambient thermal resistance of 90°C/W. This robust FET additionally offers a commendable forward transconductance of 11 S and a low total gate charge of 6.2 nC, making it an efficient choice for high-performance applications.

The 2N7002E is a small signal MOSFET produced by ON Semiconductor, designed for applications requiring a low RDS(on) and high efficiency in a compact SOT-23 package. This N-Channel MOSFET can handle a maximum drain-to-source voltage (VDSS) of 60 V and a continuous drain current (ID) of up to 310 mA at 25°C. It features trench technology for enhanced performance and is AEC-Q101 qualified, making it suitable for automotive and other high-reliability applications. The device is Pb-free, Halogen-free, and RoHS compliant. Typical applications include low side load switches, level shift circuits, DC-DC converters, and various portable devices such as digital still cameras (DSC), PDAs, and cell phones. The MOSFET's thermal characteristics include a junction-to-ambient thermal resistance of 417°C/W in steady state and 300°C/W for short durations (t ≤ 5 s). The 2N7002E is available in tape and reel packaging, with part numbers 2N7002ET1G and 2N7002ET7G for standard applications, and S2N7002ET1G and S2N7002ET7G for automotive-grade requirements.

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

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