This is a ESP32-H2-MINI-1 reference design built on manufacture recommendations. Here is on board an ESP32-H2-MINI-1 module, RESET and BOOT buttons, RGB LED, and 2 connectors for IOs #ESP32 #WiFi #IoT #ARM #referenceDesign #simple-embedded #espressif #template #reference-design

This project is a Lithium-ion battery charger circuit utilizing the STC4054 integrated circuit. It includes input and output connectors, a charging current programming resistor, decoupling capacitors, and a charge status indicator LED. The design can deliver up to 800mA charge current. #project #Template #charger #reusable #module #batterycharger #template #bms #STC4054 #stm

High Brightness Strobe/Flashing LED lights. Good for cyclists, e-bikes who bike at night.

This is a ESP32-C6-WROOM-1U reference design built on manufacture recommendations. Here is on board an ESP32-H2-MINI-1 module, RESET and BOOT buttons, RGB LED, and 2 connectors for IOs #ESP32 #WiFi #IoT #ARM #referenceDesign #simple-embedded #espressif #template #reference-design

Product Type: Wearable AI pendant Primary Function: Records audio, generates transcripts, and organizes information about daily interactions User Interaction: Input: Activation button Output: RGB LED ring, Bluetooth link to phone Key Features: Audio Recording: Activated by button press Transcription: Converts audio to text Sentiment Analysis: Embedded AI evaluates sentiment Information Management: Filters essential information and action items Technical Specifications Form Factor: Wearable pendant Display: RGB LED ring around the edge Sensors: 2 Microphones 1 Button Connectivity: Bluetooth for phone linkage Wi-Fi USB-C for charging Wireless Protocol: Wi-Fi, Bluetooth Battery Type: LiPo 2000 mAh Battery Life: 6 hours of continuous use Charging Method: USB-C Operating Voltage: 3.3V Operating Conditions: Temperature Range: -10°C to 70°C Humidity: 10 to 90% Software: Python for AI and processing Compliance: RoHS, FCC, CE Reliability: 20,000 hrs Life Cycle Expectancy: 10 years AI Capabilities Speech to Text Recognition: Converts audio input to written text Embedded AI Sentiment Analysis: Evaluates the mood or sentiment expressed in the text Essential Information Filtering: Identifies and segregates crucial data and actionable items Power Consumption and Efficiency Power consumption must align with battery capacity to ensure 6 hours of continuous operational use.

A simulated blinking LED circuit using an astable multivibrator a.k.a "flip-flop" as a square wave generator. It also includes PCB layout of the project.

A simulated blinking LED circuit using an astable multivibrator a.k.a "flip-flop" as a square wave generator. It also includes PCB layout of the project.

A simulated blinking LED circuit using an astable multivibrator a.k.a "flip-flop" as a square wave generator. It also includes PCB layout of the project.

Build your own Modular LED Sign! This design prioritizes accessibility which means that the BoM can be ordered on Amazon and that everything was designed with solder-ability in mind. NOTE: This board is still an unfinished prototype that has not been built and verified. Operating Instructions: 1. [Important!] Power your buck converter and adjust the output voltage to 1.5V output before attempting to power the LEDs. If you cannot power the buck converter, just turn the potentiometer counterclockwise to its maximum setting.

Build your own Modular LED Sign! Operating Instructions: 1. [Important!] Power your buck converter and adjust the output voltage to 1.5V output before attempting to power the LEDs. If you want it to be simple and static intensity, first count how many LEDs you need to power and then determine your power requirements. E.g. R-24 T-14 F-15 M-33 Total: 86

A simulated blinking LED circuit using an astable multivibrator a.k.a "flip-flop" as a square wave generator. It also includes PCB layout of the project.

A simulated blinking LED circuit using an astable multivibrator a.k.a "flip-flop" as a square wave generator. It also includes PCB layout of the project.

LED Indication - Discrete 1206 (3216 Metric)

R2 changes: -Moving to Letter Modules for ease of design -Adding ESP32 for WiFi On/Off and intensity control -Optional: Add unpopulated AA Battery Holder for battery option R1 changes: -Changed LED part to Red LEDs -adjusted resistor value of buck converter -Changed source for USB-C Connector -Removed exposed soldermask on buck converter with negative soldermask expansion -Order with black soldermask Modified by markwu2001: - Adjustable Brightness, - 85-90% Drive Efficiency - <5W Operation (Can use 5V 1A Plug) This project can be purchased from LCSC Original Description: Daddy's second circuit board. A sign to let my wife know when I'm on a call. Activates with a slide switch and is powered by USB-C. #template

Build your own Modular LED Sign! This design prioritizes accessibility which means that the BoM can be ordered on Amazon and that everything was designed with solder-ability in mind. NOTE: This board is still an unfinished prototype that has not been built and verified. Operating Instructions: 1. [Important!] Power your buck converter and adjust the output voltage to 1.5V output before attempting to power the LEDs. If you cannot power the buck converter, just turn the potentiometer counterclockwise to its maximum setting.

Simulator template for an LED part. Check out the Code editor for instructions!

Simulator template for an LED part. Check out the Code editor for instructions!

A simulated blinking LED circuit using an astable multivibrator a.k.a "flip-flop" as a square wave generator.

Mini Paper USV PCB Upgrade v1.0 schematic twin using an ELEGOO MEGA 2560, L293D H-bridge, HC-SR04 ultrasonic sensor, SG90 servo header, LED indicators, buzzer, and dual 9V parallel battery input.

This project is a Advanced Dual Cell Lithium-Ion/Lithium-Polymer Charge Management Controllers utilizing the MCP73844 integrated circuit. It includes input and output connectors, a charging current programming resistor, decoupling capacitors, and a charge status indicator LED. #project #Template #charger #MCP73844 #2cell #referenceDesign #batterycharger #template #bms #microchip #reference-design

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.

This project is a Bluetooth Low Energy (BLE) gas leakage detection system. It uses a BME680 sensor from Bosch Sensortec for gas detection and a BMD-330-A-R module from U-blox for BLE communication. It also features a user interaction button, RGB signaling LED, and is powered by two non-rechargeable AA batteries. #BLE #MCU #ReferenceDesign #project #referenceDesign #simple-embedded #ublox #template #reference-design

R2 changes: -Moving to Letter Modules for ease of design -Adding ESP32 for WiFi On/Off and intensity control -Optional: Add unpopulated AA Battery Holder for battery option R1 changes: -Changed LED part to Red LEDs -adjusted resistor value of buck converter -Changed source for USB-C Connector -Removed exposed soldermask on buck converter with negative soldermask expansion -Order with black soldermask Modified by markwu2001: - Adjustable Brightness, - 85-90% Drive Efficiency - <5W Operation (Can use 5V 1A Plug) This project can be purchased from LCSC Original Description: Daddy's second circuit board. A sign to let my wife know when I'm on a call. Activates with a slide switch and is powered by USB-C. #template

This project is a BLE door and window sensor design that uses a U-blox BMD-330-A-R for BLE communication, a reed switch as a sensor, a multi-color LED for status display, and is powered by VBAT. There's also a programming interface and reset switch included. #WiFi #BLE #MCU #ReferenceDesign #project #referenceDesign #simple-embedded #ublox #template #reference-design

A fun project making a geeky wristwatch, using the QDSP-6064 bubble LED display.