Class AB Audio Amp with Aux and microphone inputs and adjustable volume control using potentiometers.

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.

This is a Class-D amplifier design project based on the PAM8302A IC #Class-D #amplifier #PAM8302A

A class of rotary electrical motors that converts direct current (DC) electrical energy into mechanical energy.

This super small mono amplifier is surprisingly powerful - able to deliver up to 2.5 Watts into 4-8 ohm impedance speakers. Inside the miniature chip is a class D controller, able to run from 2.0V-5.5VDC.

Amplifier IC 1-Channel (Mono) Class AB 15-Multiwatt #Amplifier #Audio #commonpartslibrary

This project aims to build an Audio Amplifier using the TDA2822 IC. The TDA2822 is a commonly used dual-channel audio amplifier that can deliver high power output. The amplifier will be designed to drive two speakers with volume control and the audio input can be directly provided through an audio jack. This project is inspired by my class Analogue and Digital electronics.

Power Transformer VPT87DDF01B XFMR-SMD_VPT87DFB01B LCSC Part Number: C2846916 JLCPCB Part Class: Extended Part Manufactured by VPSC(源特科技)

This super small mono amplifier is surprisingly powerful - able to deliver up to 2.5 Watts into 4-8 ohm impedance speakers. Inside the miniature chip is a class D controller, able to run from 2.0V-5.5VDC.

A class of rotary electrical motors that converts direct current (DC) electrical energy into mechanical energy.

High-end 2-channel USB Audio Class 2.0 measurement interface for Smaart/REW use, with XMOS digital audio, isolated converter domain, smart encoder/LED UI, precision mic input, DAC line output, loopback ADC, phantom power, and protected USB-C power input.

8-channel USB Audio Class 2.0 line-input interface using AK5558 ADC and XMOS XU208 USB bridge

Card Edge Connectors 1473005-4 SO-DIMM-SMD_200P-P0.60_1473005-4 LCSC Part Number: C428482 JLCPCB Part Class: Extended Part Manufactured by TE Connectivity(泰科电子)

ChargeGuard Gateway - PCB layout review status: schematic power tree review is clean; remaining work is PCB-layout-only cleanup. Current DRC inventory: 136 Overlapping Copper, 56 Floating Copper, 88 Airwires, 0 Missing Footprints, 0 Invalid Layer, 0 Important Overrides. Priority 1: protected input and power-path regions around VIN_PROTECTED, VIN_FILTERED, +5V_MAIN, +3V3_MAIN because these can block reliable routing and copper pours. Manual PCB editor tasks: remove/reshape overlapping copper, reconnect broken traces or redraw routes causing airwires, delete stranded copper islands, inspect ambiguous pad-to-trace shorts around power devices and connectors. Agent-preparable tasks: maintain issue inventory, classify nets and priorities, preserve stackup/documentation, define DRC recheck loop, and guide Auto-Layout sequencing after manual copper cleanup. Recheck loop: fix one issue class or one critical region at a time, rerun DRC, confirm counts decrease, then move to next batch until airwires/floating copper/overlaps are zero. Completion checklist: 1) clear power-path overlaps, 2) remove floating copper islands, 3) close all airwires, 4) rerun DRC after each batch, 5) confirm clean layout before manufacturing export.

Industrial Class 0.5 three-phase energy meter with STM32G431 metrology/control, ESP32-WROVER-E Ethernet/WiFi communications, ATM90E36A metering front end, RS485, industrial HV/LV isolation, and 4-layer pre-layout constraints.

10 W IEC 62368 Class II Isolated Flyback AC/DC Converter (85–305 Vac to 5 V @ 2 A, 80% Efficiency, 6 mm Creepage, EE-Core Transformer, 90 °C Ambient) #flyback #classII #EEcore

Internet Radio (Mono for now) using MAX98357A Class D Amplifier.

ST Microelectronics STM32G071G8U6 UFQFPN-28_L4.0-W4.0-P0.50-BL LCSC Part Number: C724080 JLCPCB Part Class: Extended Part Manufactured by ST(意法半导体)

Bridge Rectifiers ULBF510 ULBF-4_L9.6-W8.6-P5.20-LS10.0-BL LCSC Part Number: C2826562 JLCPCB Part Class: undefined Manufactured by 晶导微电子

1.1 BLE Beacon Tags – Dual-Mode (BLE + LoRa) Installation: Mounted on safety helmets. Specification Requirement Communication Protocols BLE 5.0+ and LoRaWAN 1.0.4 Class A/B BLE Range Up to 150 meters LoRa Range > 5 km Battery Life BLE: ≥ 5 years; LoRa: ≥ 8 years Indoor Accuracy 1–5 meters using BLE Outdoor Accuracy 1–10 meters using LoRa + IMU + AI (no GPS on tag) Sensors 3-axis IMU, optional T&H, fall detection Alert Features SOS button, red LED, buzzer, vibration motor IP Rating IP67 minimum Operating Temperature -20°C to +70°C Certifications IECEx, IPSEC, FCC, CE, RoHS, REACH Branding White label with client logo