Simple audio peak detector for electret microphones.

This project is a Switched-Mode Power Supply (SMPS) design. The design incorporates an AC DC Converter (NCP1203D100R2), polarized capacitors, resistors, diodes, connectors, a transistor, a transformer and an integrated circuit. #AC #DC #POWER #NCP1203 #project

12V LiFePO4 power distribution board requirements package: 150 mm x 100 mm 2-layer SMD PCB with 12V battery input, input protection, 12V-to-5.1V buck conversion, six USB-C power outputs, 3.3V logic rail, current/voltage monitoring, test points, board-edge connectors, and JLCPCB-aligned fabrication outputs.

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

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

Super tiny double-sided xiao board with expansion connector.

Super tiny double-sided xiao board

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.

The BLM02AX121SN1# is a chip ferrite bead manufactured by Murata, designed to function as a resistor at noise frequencies, thereby minimizing resonance and maintaining signal integrity. This surface-mount device (SMD) features a compact size of 0.4mm x 0.2mm, making it ideal for noise suppression in small electronic equipment, such as PA modules for cellular phones. The component operates effectively across a wide frequency range (30MHz to several hundred MHz) without requiring a ground connection, making it suitable for circuits without stable ground lines. The BLM02AX121SN1# offers a rated current of 250mA at 125°C, a maximum DC resistance of 0.50Ω, and an impedance of 1200Ω at 100MHz with a tolerance of ±25%. It is available in two packaging options: bulk (bag) with a standard packing quantity of 1000 units and 180mm paper tape with 20000 units. The device is compliant with RoHS and REACH standards, ensuring its suitability for consumer and certain medical and industrial applications.

SOT-23-5 is a small 5-pin Surface Mount Device (SMD) package with a body size of 3mm x 1.4mm and a lead pitch of 0.95mm. The package has a low profile and is commonly used for small signal transistors and diodes. #part #template

Change History from V1: -Font Bigger for SMD Footprint and IC designators -Confirmed that V1 worked for LED energy harvesting and NFC write/read Forked an amazing PCB business card from Mark Wu and added a SMD footprint and silkscreen art.

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.

Important Note: You must connect your own SPI/ICSP programming header if you want to burn the Arduino bootloader to the MCU. SMD Manufacturing: Need a hotplate and solderpaste Good to haves: - Oscillator Decoupling Caps Expose UART via connector Programming Button Onboard LED Reset Button You don't have to populate everything! Only these are mandatory: Reset Button Find the reference schematic here: https://www.arduino.cc/en/uploads/Main/ArduinoNano30Schematic.pdf

LED SMD 0805 (2012 Metric), IPC_7351 nominal

SMD V2 – 30×20 mm STM32G070 + BMP580 USB‑C LCD Controller Board with BQ24075 Charging (Manufacturability To‑Do Updated)

This project is a Switched-Mode Power Supply (SMPS) design. The design incorporates an AC DC Converter (NCP1203D100R2), polarized capacitors, resistors, diodes, connectors, a transistor, a transformer and an integrated circuit. #AC #DC #POWER #NCP1203 #project

Important Note: You must connect your own SPI/ICSP programming header if you want to burn the Arduino bootloader to the MCU. SMD Manufacturing: Need a hotplate and solderpaste Good to haves: - Oscillator Decoupling Caps Expose UART via connector Programming Button Onboard LED Reset Button You don't have to populate everything! Only these are mandatory: Reset Button Find the reference schematic here: https://www.arduino.cc/en/uploads/Main/ArduinoNano30Schematic.pdf