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  • Ultrasonic Distance Meter Reference Design

    Ultrasonic Distance Meter Reference Design

    This circuit is an ultrasonic distance meter based on an ATTiny2313 microcontroller. It uses an HC-SR04 ultrasonic sensor to measure distance and displays the results on an OLED display. The power supply is constructed using a Boost converter (TPS613222A) and a 2-cell AA battery. Additionally, it also includes ISP for programming, RESET and START switches, and LED indicators. #project #Template #projectTemplate #ultrasonic #OLED #arduino #attiny2313 #TPS613222A #ISP #referenceDesign #simple-embedded #microchip #template #reference-design .
    ... show more

    vasy_skral

    &

    a month ago

    13 Comments

    1 Star

  • Keypad lock reference design

    Keypad lock reference design

    This project involves the design of a keypad lock system. It utilizes an ATMEGA328P microcontroller, buzzers, LEDs for indicator functions and a 4x3 matrix keypad. An in-circuit serial programming (ISP) header is also present for programming the microcontroller. #project #Template #projectTemplate #lock #keypad #arduino #atmega328 #TPS613222A #ISP #buzzer #referenceDesign #simple-embedded #microchip #template #reference-design
    ... show more

    christophx

    2 years ago

    1 Comment

    1 Star

  • Brainstorm a new project with AI [Example]

    Brainstorm a new project with AI [Example]

    make this for me now
    Device Summary & Specification Sheet
    1. Overview
    A rugged, Arduino-Uno-and-Raspberry-Pi-style single-board micro-PC featuring:
    • Smartphone-class CPU (Snapdragon 990)
    • USB-C Power Delivery + 4×AA alkaline backup + ambient-light harvester
    • On-board Arduino-Uno-compatible ATmega328P
    • External NVMe SSD via USB3 bridge & optional Thunderbolt 3 eGPU support
    • 5× USB 3.0 ports, HDMI in/out, Gigabit Ethernet & SFP fiber, Wi-Fi, Bluetooth, LoRa
    • 0.96″ OLED status display, 3.5 mm audio jack with codec

    2. Key Specifications

    CategorySpecification
    CPUSnapdragon 990, octa-core up to 2.84 GHz
    Memory6 GB LPDDR4x DRAM
    Storage InterfacePCIe Gen3 ×4 → M.2 NVMe + USB 3.1 Gen1 bridge
    MCUATmega328P (Arduino-Uno-compatible)
    Power InputUSB-C PD up to 20 V/5 A; 4×AA alkaline backup; ambient-light photodiode boost
    Power Rails12 V, 5 V, 3.3 V, 1.8 V, 1.2 V via buck/buck-boost regulators
    USB Hub5× USB 3.0 downstream ports
    Display0.96″ 128×64 OLED via I²C/SPI
    Networking1 × Gigabit RJ45; 1 × SFP fiber; Wi-Fi 802.11ac + Bluetooth; LoRa SX1276
    Video I/OHDMI 2.0 input (RX) & output (TX)
    Audio3.5 mm jack + TLV320AIC3101 codec; Bluetooth audio
    Form FactorRaspberry Pi–style header + Arduino-Uno shield headers; 4× standoff mounts

    3. Complete Parts List

    PartFunctionQty
    Snapdragon 990Main application CPU1
    LPDDR4x DRAMSystem memory1
    eMMC 64GBOn-board storage1
    M.2 NVMe ConnectorExternal SSD interface1
    JMS583PCIe→USB 3.1 bridge for NVMe1
    Titan RidgeThunderbolt 3/eGPU controller1
    STUSB4500USB-C Power-Delivery controller1
    LTC4412Ideal-diode OR-ing1
    LTC3108Ambient-light (solar) energy harvester1
    Battery Holder 4×AAAlkaline backup power1
    TPS533186 V→5 V synchronous buck regulator1
    MCP1700-3302E/TO6 V→3.3 V LDO1
    TPS63060Buck-boost for 12 V rail (eGPU power)1
    ATmega328PArduino-Uno microcontroller1
    ESP32-WROOM-32Wi-Fi + Bluetooth co-processor1
    SX1276LoRa transceiver1
    TUSB80415-port USB 3.0 hub IC1
    Ethernet PHYGigabit Ethernet physical transceiver1
    SFP CageFiber-optic SFP module connector1
    TDA19978HDMI 2.0 receiver (input)1
    TFP410HDMI 2.0 transmitter (output)1
    TLV320AIC3101Audio codec for 3.5 mm jack & Bluetooth audio1
    Audio Jack 3.5mmHeadphone/mic port1
    SSD1306 OLEDStatus display1
    4. High-Level Design & Implementation Steps
    1. Schematic Creation
      • Section off blocks: CPU + memory, power-supply, NVMe/USB bridge, MCU, wireless, USB hub, video, audio, I/O headers.
      • Place all parts from the list and wire per respective datasheet reference circuits.
    2. Power System
      • Implement USB-C PD with STUSB4500 → buck/buck-boost & LDO rails.
      • Add LTC4412 to OR-ing battery pack into 6 V bus.
      • Include LTC3108 harvest input to 6 V bus (no recharge to AA).
      • Add decoupling & bulk caps per regulator datasheets; PTC fuses & ESD diodes on inputs.
    3. SoC & High-Speed Interfaces
      • Break out Snapdragon 990 BGA with DDR4 routing (point-to-point).
      • Route PCIe Gen3 lanes to M.2 slot via JMS583 and to Titan Ridge for TB/eGPU.
      • Follow high-speed layout guidelines: impedance, length matching, EMI filters.
    4. MCU & Expansion Headers
      • Place ATmega328P with UNO-style 2.54 mm headers; add ISP 6-pin, I²C pull-ups, reset circuit.
    5. Connectivity Blocks
      • USB hub: TUSB8041 + ESD + chokes → five USB-A 3.0 ports.
      • Ethernet: RJ45 + magnetics + PHY; SFP cage + PHY/SFP interface.
      • Wireless: ESP32 module pad + SX1276 + antenna matching; program pads.
    6. Video & Audio
      • HDMI RX (TDA19978) & TX (TFP410) blocks with TMDS ESD & termination.
      • Audio codec + 3.5 mm jack; route differential audio lines; add ESD.
    7. Display & Indicators
      • SSD1306 OLED on I²C; add pull-ups & backlight power if needed.
      • LEDs for power, charge, status.
    8. PCB Layout & Mechanical
      • Follow Raspberry Pi 2×20 header footprint & UNO shield hole pattern.
      • Add reinforcement for rugged use; standoffs at corners.
      • Define 4-layer stackup:
        • Top: signal
        • L2: GND
        • L3: PWR
        • Bottom: signal
    9. DRC/ERC Reviews
      • Run ERC for decoupling, pull-ups, power nets.
      • Run DRC for high-speed clearance, differential pairs, via aspect ratios.
    10. Fabrication & Testing
    • Export Gerbers, IPC-2581, BOM.
    • Prototype assembly; verify power sequencing, rails, interfaces.
    • Functional tests: USB-C PD negotiation, NVMe throughput, eGPU over TB3, wireless comm, audio, OLED.
    This spec sheet and part list should guide your Flux schematic and PCB layout workflow through to fabrication and validation. Let me know if you’d like to deep-dive into any specific block or review datasheet details next!
    ... show more

    risk4444

    &

    6 months ago

    1 Star

  • Ultrasonic Distance Meter Reference Design

    Ultrasonic Distance Meter Reference Design

    This circuit is an ultrasonic distance meter based on an ATTiny2313 microcontroller. It uses an HC-SR04 ultrasonic sensor to measure distance and displays the results on an OLED display. The power supply is constructed using a Boost converter (TPS613222A) and a 2-cell AA battery. Additionally, it also includes ISP for programming, RESET and START switches, and LED indicators. #project #Template #projectTemplate #ultrasonic #OLED #arduino #attiny2313 #TPS613222A #ISP #referenceDesign #simple-embedded #microchip #template #reference-design
    ... show more

    andresroa

    8 months ago

    1 Star

  • Energy Meter Reference Design

    Energy Meter Reference Design

    This is an Energy Meter project leveraging an ATTiny85 microcontroller (U1) to sense current through an ACS712 module (U2). It displays the data in real-time on an OLED display (OLED1) and interacts with three buttons (NEXT, MENU, OK). This compact energy meter is suitable for edge computing and low-power Internet of Things (IoT) applications #project #keypad #arduino #attiny85 #ISP #referenceDesign #edge-computing #edgeComputing #microchip #template #reference-design
    ... show more

    vasy_skral

    &

    a month ago

    13 Comments

  • Arduino Wearable Watch

    Arduino Wearable Watch

    This module is a minimalist Arduino Watch design. Consisting of a Microchip ATTINY85-20SU microcontroller, an OLED display for visual output, two user buttons for interface, and a Li-ion Battery for power. The schematic also includes graphic user interface with ISP for programming and minimal passive components for functionality. #wearableDevices #arduino #attiny85
    ... show more

    jharwinbarrozo

    a year ago

    7 Comments

  • Arduino Watch Module 6TTY

    Arduino Watch Module 6TTY

    This module is a minimalist Arduino Watch design. Consisting of a Microchip ATTINY85-20SU microcontroller, an OLED display for visual output, two user buttons for interface, and a Li-ion Battery for power. The schematic also includes graphic user interface with ISP for programming and minimal passive components for functionality. #project #Template #projectTemplate #reusable #module #simple-embedded #microchip #arduino #sublayout
    ... show more

    epicella

    2 years ago

    7 Comments

  • Arduino Watch Module 31Jun

    Arduino Watch Module 31Jun

    This module is a minimalist Arduino Watch design. Consisting of a Microchip ATTINY85-20SU microcontroller, an OLED display for visual output, two user buttons for interface, and a Li-ion Battery for power. The schematic also includes graphic user interface with ISP for programming and minimal passive components for functionality. #project #Template #projectTemplate #reusable #module #simple-embedded #microchip #arduino #sublayout
    ... show more

    deucebot22

    2 years ago

    5 Comments

  • ATTINY13-Battery-Meter-test-3

    ATTINY13-Battery-Meter-test-3

    This board measure battery voltage and shows a current battery level. Based on ATTINY13 MCU and compatible with Arduino IDE. J1 is 6-Pin AVR ISP Connector
    ... show more

    vasy_skral

    2 years ago

    5 Comments

  • Ultrasonic Distance Meter Reference Design

    Ultrasonic Distance Meter Reference Design

    This circuit is an ultrasonic distance meter based on an ATTiny2313 microcontroller. It uses an HC-SR04 ultrasonic sensor to measure distance and displays the results on an OLED display. The power supply is constructed using a Boost converter (TPS613222A) and a 2-cell AA battery. Additionally, it also includes ISP for programming, RESET and START switches, and LED indicators. #project #Template #projectTemplate #ultrasonic #OLED #arduino #attiny2313 #TPS613222A #ISP #referenceDesign #simple-embedded #microchip #template #reference-design
    ... show more

    sircayzer

    2 years ago

    5 Comments

  • KEY PAD x 24 v3 8298

    KEY PAD x 24 v3 8298

    This module involves the design of a keypad lock system. It utilizes an ATMEGA328P microcontroller, buzzers, LEDs for indicator functions and a 4x3 matrix keypad. An in-circuit serial programming (ISP) header is also present for programming the microcontroller. #template #lock #keypad #reusable #module #simple-embedded #microchip #arduino #atmega328 #TPS613222A #ISP #buzzer #sublayout
    ... show more

    thgiga

    8 months ago

    1 Comment

  • Arduino Watch Module

    Arduino Watch Module

    This module is a minimalist Arduino Watch design. Consisting of a Microchip ATTINY85-20SU microcontroller, an OLED display for visual output, two user buttons for interface, and a Li-ion Battery for power. The schematic also includes graphic user interface with ISP for programming and minimal passive components for functionality. #project #Template #projectTemplate #reusable #module #simple-embedded #microchip #arduino #sublayout
    ... show more

    ahoth

    a year ago

    1 Comment

  • Ultrasonic Distance Meter Reference Design

    Ultrasonic Distance Meter Reference Design

    This circuit is an ultrasonic distance meter based on an ATTiny2313 microcontroller. It uses an HC-SR04 ultrasonic sensor to measure distance and displays the results on an OLED display. The power supply is constructed using a Boost converter (TPS613222A) and a 2-cell AA battery. Additionally, it also includes ISP for programming, RESET and START switches, and LED indicators. #project #Template #projectTemplate #ultrasonic #OLED #arduino #attiny2313 #TPS613222A #ISP #referenceDesign #simple-embedded #microchip #template #reference-design
    ... show more

    septafiansyah

    a year ago

    1 Comment

  • Ultrasonic Distance Meter Reference Design wtDA

    Ultrasonic Distance Meter Reference Design wtDA

    This circuit is an ultrasonic distance meter based on an ATTiny2313 microcontroller. It uses an HC-SR04 ultrasonic sensor to measure distance and displays the results on an OLED display. The power supply is constructed using a Boost converter (TPS613222A) and a 2-cell AA battery. Additionally, it also includes ISP for programming, RESET and START switches, and LED indicators. #project #Template #projectTemplate #ultrasonic #OLED #arduino #attiny2313 #TPS613222A #ISP #referenceDesign #simple-embedded #microchip #template #reference-design
    ... show more

    roman16

    a year ago

    1 Comment

  • Ultrasonic Distance Meter Reference Design jRnP

    Ultrasonic Distance Meter Reference Design jRnP

    This circuit is an ultrasonic distance meter based on an ATTiny2313 microcontroller. It uses an HC-SR04 ultrasonic sensor to measure distance and displays the results on an OLED display. The power supply is constructed using a Boost converter (TPS613222A) and a 2-cell AA battery. Additionally, it also includes ISP for programming, RESET and START switches, and LED indicators. #project #Template #projectTemplate #ultrasonic #OLED #arduino #attiny2313 #TPS613222A #ISP #referenceDesign #simple-embedded #microchip #template #reference-design
    ... show more

    roman16

    a year ago

    1 Comment

  • Arduino Watch Module 4ac7

    Arduino Watch Module 4ac7

    This module is a minimalist Arduino Watch design. Consisting of a Microchip ATTINY85-20SU microcontroller, an OLED display for visual output, two user buttons for interface, and a Li-ion Battery for power. The schematic also includes graphic user interface with ISP for programming and minimal passive components for functionality. #project #Template #projectTemplate #reusable #module #simple-embedded #microchip #arduino #sublayout
    ... show more

    yousi176

    a year ago

    1 Comment

  • IR remote control Module

    IR remote control Module

    This is a schematic of an IR (infrared) remote control system. It's built around a Microchip ATTINY2313 microcontroller (U1) and boasts five push-button switches, an indicator RED LED and an electret buzzer for user interaction. An ISP header provides programming capabilities. The project is battery-powered and implements boost converter TPS613222AD (IC1) for stable power supply. #project #Template #projectTemplate #lock #keypad #attiny2313 #TPS613222A #ISP #buzzer #reusable #module #simple-embedded #microchip #arduino #sublayout
    ... show more

    ranveerdev

    2 years ago

    1 Comment

  • ATTINY85-Sub-Layout 7PGd

    ATTINY85-Sub-Layout 7PGd

    Sub layout for ATTINY84 in DIP package. Minimal components with ISP programming connector(excluded from BOM)
    ... show more

    oozliuoo

    4 years ago

    1 Comment

  • ATTINY85-Sub-Layout 1Phn

    ATTINY85-Sub-Layout 1Phn

    Sub layout for ATTINY84 in DIP package. Minimal components with ISP programming connector(excluded from BOM)
    ... show more

    oozliuoo

    4 years ago

    1 Comment

  • ATTINY85-Sub-Layout

    ATTINY85-Sub-Layout

    Sub layout for ATTINY84 in DIP package. Minimal components with ISP programming connector(excluded from BOM)
    ... show more

    moxley02

    4 years ago

    1 Comment

  • IR remote control Reference Design 3c2m

    IR remote control Reference Design 3c2m

    This is a schematic of an IR (infrared) remote control system. It's built around a Microchip ATTINY2313 microcontroller (U1) and boasts five push-button switches, an indicator RED LED and an electret buzzer for user interaction. An ISP header provides programming capabilities. The project is battery-powered and implements boost converter TPS613222AD (IC1) for stable power supply. #project #Template #projectTemplate #lock #keypad #arduino #attiny2313 #TPS613222A #ISP #buzzer #referenceDesign #simple-embedded #microchip #template #reference-design
    ... show more

    caroln

    2 years ago

    1 Comment

  • ATTINY85-Sub-Layout qFyW

    ATTINY85-Sub-Layout qFyW

    Sub layout for ATTINY84 in DIP package. Minimal components with ISP programming connector(excluded from BOM)
    ... show more

    oozliuoo

    4 years ago

    1 Comment

  • ATTINY85-Sub-Layout

    ATTINY85-Sub-Layout

    Sub layout for ATTINY84 in DIP package. Minimal components with ISP programming connector(excluded from BOM)
    ... show more

    oozliuoo

    4 years ago

    1 Comment

  • Energy Meter Reference Design

    Energy Meter Reference Design

    This is an Energy Meter project leveraging an ATTiny85 microcontroller (U1) to sense current through an ACS712 module (U2). It displays the data in real-time on an OLED display (OLED1) and interacts with three buttons (NEXT, MENU, OK). This compact energy meter is suitable for edge computing and low-power Internet of Things (IoT) applications #project #keypad #arduino #attiny85 #ISP #referenceDesign #edge-computing #edgeComputing #microchip #template #reference-design
    ... show more

    luisnarvaez24

    2 years ago

    1 Comment

  • Energy Meter Reference Design

    Energy Meter Reference Design

    This is an Energy Meter project leveraging an ATTiny85 microcontroller (U1) to sense current through an ACS712 module (U2). It displays the data in real-time on an OLED display (OLED1) and interacts with three buttons (NEXT, MENU, OK). This compact energy meter is suitable for edge computing and low-power Internet of Things (IoT) applications #project #keypad #arduino #attiny85 #ISP #referenceDesign #edge-computing #edgeComputing #microchip #template #reference-design
    ... show more

    shrec

    2 years ago

    1 Comment