• pcb charging battery

    pcb charging battery

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


  • Battery Operated LED

    Battery Operated LED

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


  • J's battery

    J's battery


  • EV battery

    EV battery

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

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    smerril7


  • solar battery charger

    solar battery charger

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


  • Battery V2

    Battery V2

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


  • SCR  Battery Charger

    SCR Battery Charger

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


  • battery segment

    battery segment

    this is a schematic of a single segment

    &

    smerril7


  • Playground: AvocAudio: A tinyML community board v1 56d6

    Playground: AvocAudio: A tinyML community board v1 56d6

    AvocAudio is a compact tinyML community board designed for extensive audio data collection for various tinyML applications. It leverages the Raspberry Pi RP2040 and integrates a LoRa-E5 LoRaWAN Transceiver Module for connectivity. Equipped with an SD card slot for local data storage, the board ensures efficient data collection. The board operates on solar power or a lithium-ion battery, ensuring flexible and efficient energy use. #raspberryPi #rp2040 #lorawan #iot #solar

    215 Comments


  • Playground: BRAVE POWER MANAGEMENT BOARD

    Playground: BRAVE POWER MANAGEMENT BOARD

    Brave is a versatile and efficient power board that can provide 12v, 5v and 3.3v outputs for various applications from 4V to 5V Input. It can be powered by battery or solar panel, and the battery can be recharged by solar energy. It can also be powered by a USB port if needed. This board is ideal for IoT projects that require reliable and stable power supply in different environments. USB INPUT: 5V Solar INPUT: 4V - 6V Battery Input: 3.6V - 4.2V OUTPUTs: 12V, 5V, and 3.3V #IoT #power #management #usb

    141 Comments


  • The Green Dot 2040E5 Board (messed up for testing)

    The Green Dot 2040E5 Board (messed up for testing)

    The "Green Dot 2040E5" Board is a Node that interfaces RS485 Sensor probes and can log information to the cloud using LoRa Connectivity. It uses the XIAO RP2040 and the LoRa-E5 (STM32WLE5JC) modules from Seeed Studio to do its magic. It also has amazing power management capabilities (Solar charging, Battery protection, etc) that make it very useful for IoT applications #Seeed #XIOA #LoRa #RP2040 #IoT

    &

    110 Comments


  • gps tracker

    gps tracker

    A circuit for a gps tracker using stm32f103c8t6 and sim 808, that acquires and sends gps coordinates to a separate interfaced application. The circuit will be powered by a 12v dc battery so there a need for power regulation. there is a USB type micro B for code uploading.

    &

    +2

    74 Comments


  • The Green Dot 2040E5 Board azr7

    The Green Dot 2040E5 Board azr7

    The "Green Dot 2040E5" Board is a Node that interfaces RS485 Sensor probes and can log information to the cloud using LoRa Connectivity. It uses the XIAO RP2040 and the LoRa-E5 (STM32WLE5JC) modules from Seeed Studio to do its magic. It also has amazing power management capabilities (Solar charging, Battery protection, etc) that make it very useful for IoT applications #Seeed #XIOA #LoRa #RP2040 #IoT

    kerry

    69 Comments


  • BRAVE POWER MANAGEMENT BOARD

    BRAVE POWER MANAGEMENT BOARD

    Brave is a versatile and efficient power board that can provide 12v, 5v and 3.3v outputs for various applications. It can be powered by battery or solar panel, and the battery can be recharged by solar energy. It can also be powered by a USB port if needed. This board is ideal for IoT projects that require reliable and stable power supply in different environments. #IoT #power #management #usb

    60 Comments


  • On Air R2 Demo

    On Air R2 Demo

    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

    53 Comments


  • Buck Boost Converter 3.3V 500 mA

    Buck Boost Converter 3.3V 500 mA

    A buck boost converter that can be powered from a Li-ion battery and ouput 3.3V @500mA. Powered by the TPS63051YFFR and in the same package as a standard ADAFRUIT buck converter. Input Voltage Range: 2.5 to 5.5 Voltage.

    52 Comments


  • Yappy Moccasin Wall-E

    Yappy Moccasin Wall-E

    Software: Linux Power Requirements: LiPo battery powered Compliance: RoHS Connectivity: USB, WiFi, Bluetooth, Ethernet Human Interface: Joystick, Display Operating Voltage: 3.3V, 5V, 9V Operating Temp: -40 to +85C Reliability: 10,000hrs MTBF Target Cost: $100

    kerry

    45 Comments


  • Cooling Fan with Solar Panels Design

    Cooling Fan with Solar Panels Design

    This project is a reference design for a 2A Solar Panel Power Manager With 7.2V LiFePO4 Battery and 17V Peak Power Tracking based on LT3652 IC. It includes components like resistors, capacitors, LEDs, and a JST connector for power input and battery connection. The design caters to high input voltage applications and ensures efficient charging with minimal components. #project #LT3652 #ReferenceDesign #charger #BatteryManagement #solar #LiFePO4 #referenceDesign #bms #analog #template #reference-design

    27 Comments


  • Green Dot Board - Supply Chain Demo

    Green Dot Board - Supply Chain Demo

    The "Green Dot 2040E5" Board is a Node that interfaces RS485 Sensor probes and can log information to the cloud using LoRa Connectivity. It uses the XIAO RP2040 and the LoRa-E5 (STM32WLE5JC) modules from Seeed Studio to do its magic. It also has amazing power management capabilities (Solar charging, Battery protection, etc) that make it very useful for IoT applications #Seeed #XIOA #LoRa #RP2040 #IoT

    23 Comments


  • P-001_AnandKumar_IOTSentinels

    P-001_AnandKumar_IOTSentinels

    This Gerber file contains the necessary information for fabricating the PCB design of a Bluetooth-enabled headphone. The design includes multiple layers, showcasing the electrical connections and component placements on both the top and bottom layers. Top Layer (Copper traces and components): The top copper layer is primarily responsible for routing the signals from key components such as the ESP32 module, MAX98357A audio amplifier, and the microphone. The ESP32 module, responsible for Bluetooth communication, is positioned centrally to optimize signal flow and minimize interference. Decoupling capacitors (100nF) are placed near critical components to ensure signal stability and noise suppression. Audio signal paths, as well as power distribution, are carefully routed to prevent cross-talk and ensure high-quality sound. Bottom Layer (Copper traces): The bottom layer contains the ground plane and additional routing for power and signal connections. The charging module (TP4056) and voltage regulator (AMS1117) are placed to manage power distribution, ensuring stable battery charging and regulated output for the ESP32 and other components. Connections to external interfaces such as the MicroSD breakout and auxiliary input are routed efficiently to avoid conflicts. Additional Components: All critical components are labeled, including decoupling capacitors (100nF) and resistors where needed, as well as external interfaces like the MicroSD card breakout. Mounting holes are provided for secure installation in a headphone casing, ensuring the board can be integrated seamlessly into the final product. The PCB is designed to minimize noise, with short signal paths and proper grounding for high-fidelity audio performance. This Gerber file ensures accurate manufacturing by containing data for copper layers, silkscreen, solder mask, and drill files.

    &

    23 Comments


  • Universal Electronic Derailleur V1

    Universal Electronic Derailleur V1

    NOTICE: This board has a incorrectly sized battery holder. If building this revision, also build the [adaptor board](flux.ai/markwuflux/adaptor-board-for-universal-electronic-derailleur-v1) Cable Index Shifting Electronic Derailleur. The first version just uses a linear actuator because I suck at ME design. I imagine it would be pretty easy to build a reeling one with positional feedback.

    22 Comments


  • The Green Dot 2040E5 Board qbzZ

    The Green Dot 2040E5 Board qbzZ

    The "Green Dot 2040E5" Board is a Node that interfaces RS485 Sensor probes and can log information to the cloud using LoRa Connectivity. It uses the XIAO RP2040 and the LoRa-E5 (STM32WLE5JC) modules from Seeed Studio to do its magic. It also has amazing power management capabilities (Solar charging, Battery protection, etc) that make it very useful for IoT applications #Seeed #XIOA #LoRa #RP2040 #IoT

    kerry

    &

    21 Comments


  • Playground: Biskuit AI

    Playground: Biskuit AI

    1. Overview: The Biskuit pendant is a wearable AI transcription assistant. An innovative device designed to seamlessly integrate into daily activities, providing real-time transcription and note-taking capabilities. Combining advanced AI algorithms with state-of-the-art hardware components, the device offers crystal clear audio recording, durable construction, and convenient features such as cloud synchronization, weatherproofing, and a vibrant display for animations and expressions. 2. Hardware Specifications: * Rechargeable Battery: Lithium-ion battery providing up to 150 hours of continuous operation. * Construction: Durable aluminum body ensuring longevity and protection against wear and tear. * Audio Quality: High-fidelity microphone array for clear and accurate transcription, with noise cancellation technology. * Weatherproofing: Sealed construction to withstand various weather conditions, making it suitable for outdoor use. * Versatile Mounting: Equipped with a magnetic clasp for easy attachment to clothing or accessories. * Connectivity: Wi-Fi and Bluetooth connectivity for seamless data transfer and integration with other devices. * Charging: USB-C port for fast and convenient charging, with support for various power sources. * Input Microphone Array: Multiple microphones strategically placed for optimal audio capture and transcription accuracy. * Display: Colorful screen for displaying animations, expressions, and status indicators, enhancing user interaction and personalization. 3. Software Features: * Real-time Transcription: Utilizes AI algorithms for instant transcription of spoken words into text, with high accuracy. * Note-taking: Automatically creates and organizes notes based on conversations, timestamps, and contextual cues. * Audio Recording: One-touch button for initiating audio recording, with options for manual or automatic saving. * Cloud Synchronization: Syncs transcription data to the cloud for easy access and retrieval from any device. * Speech Recognition: Advanced speech recognition technology for identifying speakers and distinguishing between multiple voices. * Language Support: Multilingual support for transcription and note-taking in various languages. * Customization: User-configurable settings for adjusting transcription preferences, language models, and display animations. * Security: Encryption and authentication protocols to ensure the privacy and security of transcription data. 4. Dimensions and Weight: * Dimensions: Compact and lightweight design for comfortable wearability. * Weight: Minimal weight to prevent discomfort during prolonged use. 5. Compatibility: * Operating Systems: Compatible with iOS, Android, and other major operating systems. * Applications: Integration with popular productivity and communication apps for seamless workflow management. 6. Warranty and Support: * Warranty: Manufacturer's warranty covering defects in materials and workmanship. * Support: Dedicated customer support for technical assistance, troubleshooting, and software updates. 7. Target Market: * Professionals: Ideal for professionals in various industries, including journalists, researchers, students, and business professionals. * Outdoor Enthusiasts: Suitable for outdoor activities such as hiking, camping, and fieldwork where reliable transcription and note-taking are essential. * Everyday Users: Provides convenience and efficiency for everyday tasks, such as meetings, lectures, and personal reminders. 8. Conclusion: The Wearable AI Transcription Assistant sets a new standard for wearable technology, offering unmatched transcription and note-taking capabilities in a compact and durable package. With its advanced features, seamless connectivity, vibrant display, and user-friendly design, it is poised to revolutionize how we capture and manage information in our daily lives while adding a touch of personality and fun with customizable animations and expressions.

    20 Comments


  • Current Limiting Resistors: BRAVE POWER MANAGEMENT BOARD

    Current Limiting Resistors: BRAVE POWER MANAGEMENT BOARD

    Brave is a versatile and efficient power board that can provide 12v, 5v and 3.3v outputs for various applications. It can be powered by battery or solar panel, and the battery can be recharged by solar energy. It can also be powered by a USB port if needed. This board is ideal for IoT projects that require reliable and stable power supply in different environments. #IoT #power #management #usb

    20 Comments