Chat

Welcome to Flux

Treat Flux like your intern. Tell it what you'd like to build and it'll get to work. You can also ask it questions, brainstorm ideas, and teach it your preferences. Learn More

Explain this part
Write a part description
Describe each pin
Verify Part Details
Recommend similar parts
Check availability & lifecycle

Ready.

Sign up to send
explain this project.
brim

brim

@copilot explain this project.
2y

copilot

This project is a Photography Timer designed around an ATMEGA8-16AU microcontroller, with OLED display and button controls. Here are the main components and their roles:
  • ATMEGA8-16AU (U1): The central unit controlling the logic. It connects with the OLED display, buttons, a USB connector, and various other electronic components to control the camera trigger.
  • PC817XNNIP0F (OK1, OK2): These are optoisolators, they are used to isolate different parts of the circuit electrically, to protect delicate components from surges.
  • Push buttons (SW1, SW2, SW3, SW4): These are the physical interfaces for the user to interact with the timer.
  • USB_B_Micro (J3): This is a micro USB connector for charging and possibly for programming the ATMEGA8 microcontroller.
  • MCP73831T-2ACI/OT (U2): This is a battery charge management controller from Microchip. It's used to handle the charging of the battery when the device is connected via USB.
  • Various resistors (R) and capacitors (C): These are likely used for debouncing the buttons, shaping the voltage of the battery for the Microcontroller, and the other discrete needs of the circuit.
  • 1N4148WS-7 (D1), 2N7002 (Q1), NDS356AP (Q2): These are various diodes and transistors used for power management and signal control within the circuit.
  • LCD_SCK and LCD_SDA designators: These designators are most likely reserved for communication with the OLED display through the I²C or SPI interface.
The goal of the circuit is likely to take user inputs (like delay timing, exposure time etc.) via the push buttons and display it on the OLED screen. After processing, the microcontroller will send electric signals to trigger the camera at the appropriate times. The camera trigger is seemingly controlled via the CAM_CONN (M1) component representing a camera connection.
Please note that some of the values and uses of components are assumed based on typical uses, such as resistance values and cap values, as they are not given in the design. The actual purpose and functionality could vary based on the complete design and code programmed into the ATMEGA8-16AU.
2y
088

088

Quiero un sistema de activación por medio de la intensidad de la luz
1y

copilot

Para diseñar un sistema de activación basado en la intensidad de la luz podemos utilizar un fotodiodo o un LDR (Resistor Dependiente de Luz). En este caso, describiré una implementación simple usando un LDR, que varía su resistencia en respuesta a cambios en la intensidad de la luz. Este esquema puede conectarse al microcontrolador ATMEGA8-16AU para tomar decisiones basadas en la intensidad de la luz percibida.
Componentes necesarios:
  1. LDR (Resistor Dependiente de Luz): Para detectar el nivel de luz.
  2. Resistor: Para formar un divisor de voltaje con el LDR y generar una señal analógica proporcional a la intensidad de la luz.
  3. ATMEGA8-16AU (U1): Para procesar la señal analógica y tomar decisiones de activación.
Diseño del circuito:
  • Conectar LDR en un divisor de voltaje:
    • Conecta un extremo del LDR a VCC.
    • Conecta el otro extremo del LDR a una entrada analógica del ATMEGA8-16AU (U1), por ejemplo, ADC6 (pin 1). Este punto también se conecta a un extremo de un resistor.
    • Conecta el otro extremo del resistor a GND.
  • VCC y GND:
    • Asegúrate de que VCC y GND estén correctamente conectados al ATMEGA8-16AU y a cualquier otro componente que requiera alimentación.
  • Programación del ATMEGA8-16AU:
    • Programa el ATMEGA8-16AU para leer el valor analógico desde la entrada seleccionada (ADC6 en este caso).
    • Establece un umbral de activación basado en la intensidad de la luz. Cuando la lectura de luz supere este umbral, realiza la acción deseada, como activar un LED, un relé, o en este caso, podría ser la señal para activar la cámara.
Ejemplo de conexión:
  • LDR a ADC6 (U1:ADC6).
  • Resistor: Conecta un lado a GND y el otro al mismo punto que el LDR en ADC6 (U1:ADC6).
Consideraciones de Software:
  • Configura el pin elegido para el ADC en modo de entrada.
  • Inicializa el ADC del ATMEGA8-16AU para leer valores analógicos.
  • Implementa una lógica para comparar el valor leído con un valor de umbral preestablecido. Cuando la luz es suficiente y el valor excede el umbral, realiza la acción deseada.
Notas adicionales:
  • La selección del valor del resistor en el divisor de voltaje depende de las especificaciones del LDR y de la sensibilidad deseada del sistema. Comúnmente, un valor de 10kΩ es un buen punto de partida.
  • Si requieres una respuesta más rápida o una mayor sensibilidad a los cambios de luz, podrías considerar el uso de un fotodiodo con un amplificador operacional.
Este es un diseño básico y puede ser ampliado o modificado para satisfacer necesidades específicas, como agregar filtros para descartar cambios bruscos de luz o emplear múltiples sensores para diferentes rangos de luz.
1y
Someone is typing...
2
  • Ground
    Ground
    A common return path for electric current. Commonly known as ground.
    jharwinbarrozo
    20.5M
  • Net Portal
    Net Portal
    Wirelessly connects nets on schematic. Used to organize schematics and separate functional blocks. To wirelessly connect net portals, give them same designator. #portal
    jharwinbarrozo
    43.0M
  • Power Net Portal
    Power Net Portal
    Wirelessly connects power nets on schematic. Identical to the net portal, but with a power symbol. Used to organize schematics and separate functional blocks. To wirelessly connect power net portals, give them the same designator. #portal #power
    jharwinbarrozo
    11.4M
  • Generic Resistor
    Generic Resistor
    A generic fixed resistor ideal for rapid circuit topology development. Its footprint automatically adapts based on the selected package case code—supporting 0402, 0603, 0805, 1203, and many other standard SMD packages, as well as axial horizontal and vertical configurations. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard resistor values: 1.0 ohm, 10 ohm, 100 ohm, 1.0k ohm, 10k ohm, 100k ohm, 1.0M ohm 1.1 ohm, 11 ohm, 110 ohm, 1.1k ohm, 11k ohm, 110k ohm, 1.1M ohm 1.2 ohm, 12 ohm, 120 ohm, 1.2k ohm, 12k ohm, 120k ohm, 1.2M ohm 1.3 ohm, 13 ohm, 130 ohm, 1.3k ohm, 13k ohm, 130k ohm, 1.3M ohm 1.5 ohm, 15 ohm, 150 ohm, 1.5k ohm, 15k ohm, 150k ohm, 1.5M ohm 1.6 ohm, 16 ohm, 160 ohm, 1.6k ohm, 16k ohm, 160k ohm, 1.6M ohm 1.8 ohm, 18 ohm, 180 ohm, 1.8K ohm, 18k ohm, 180k ohm, 1.8M ohm 2.0 ohm, 20 ohm, 200 ohm, 2.0k ohm, 20k ohm, 200k ohm, 2.0M ohm 2.2 ohm, 22 ohm, 220 ohm, 2.2k ohm, 22k ohm, 220k ohm, 2.2M ohm 2.4 ohm, 24 ohm, 240 ohm, 2.4k ohm, 24k ohm, 240k ohm, 2.4M ohm 2.7 ohm, 27 ohm, 270 ohm, 2.7k ohm, 27k ohm, 270k ohm, 2.7M ohm 3.0 ohm, 30 ohm, 300 ohm, 3.0K ohm, 30K ohm, 300K ohm, 3.0M ohm 3.3 ohm, 33 ohm, 330 ohm, 3.3k ohm, 33k ohm, 330k ohm, 3.3M ohm 3.6 ohm, 36 ohm, 360 ohm, 3.6k ohm, 36k ohm, 360k ohm, 3.6M ohm 3.9 ohm, 39 ohm, 390 ohm, 3.9k ohm, 39k ohm, 390k ohm, 3.9M ohm 4.3 ohm, 43 ohm, 430 ohm, 4.3k ohm, 43K ohm, 430K ohm, 4.3M ohm 4.7 ohm, 47 ohm, 470 ohm, 4.7k ohm, 47k ohm, 470k ohm, 4.7M ohm 5.1 ohm, 51 ohm, 510 ohm, 5.1k ohm, 51k ohm, 510k ohm, 5.1M ohm 5.6 ohm, 56 ohm, 560 ohm, 5.6k ohm, 56k ohm, 560k ohm, 5.6M ohm 6.2 ohm, 62 ohm, 620 ohm, 6.2k ohm, 62K ohm, 620K ohm, 6.2M ohm 6.8 ohm, 68 ohm, 680 ohm, 6.8k ohm, 68k ohm, 680k ohm, 6.8M ohm 7.5 ohm, 75 ohm, 750 ohm, 7.5k ohm, 75k ohm, 750k ohm, 7.5M ohm 8.2 ohm, 82 ohm, 820 ohm, 8.2k ohm, 82k ohm, 820k ohm, 8.2M ohm 9.1 ohm, 91 ohm, 910 ohm, 9.1k ohm, 91k ohm, 910k ohm, 9.1M ohm #generics #CommonPartsLibrary
    jharwinbarrozo
    1.5M
  • Generic Capacitor
    Generic Capacitor
    A generic fixed capacitor ideal for rapid circuit topology development. You can choose between polarized and non-polarized types, its symbol and the footprint will automatically adapt based on your selection. Supported options include standard SMD sizes for ceramic capacitors (e.g., 0402, 0603, 0805), SMD sizes for aluminum electrolytic capacitors, and through-hole footprints for polarized capacitors. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard capacitor values: 1.0pF, 10pF, 100pF, 1000pF, 0.01uF, 0.1uF, 1.0uF, 10uF, 100uF, 1000uF, 10000uF 1.1pF, 11pF, 110pF, 1100pF 1.2pF, 12pF, 120pF, 1200pF 1.3pF, 13pF, 130pF, 1300pF 1.5pF, 15pF, 150pF, 1500pF, 0.015uF, 0.15uF, 1.5uF, 15uF, 150uF, 1500uF 1.6pF, 16pF, 160pF, 1600pF 1.8pF, 18pF, 180pF, 1800pF 2.0pF, 20pF, 200pF, 2000pF 2.2pF, 22pF, 220pF, 2200pF, 0.022uF, 0.22uF, 2.2uF, 22uF, 220uF, 2200uF 2.4pF, 24pF, 240pF, 2400pF 2.7pF, 27pF, 270pF, 2700pF 3.0pF, 30pF, 300pF, 3000pF 3.3pF, 33pF, 330pF, 3300pF, 0.033uF, 0.33uF, 3.3uF, 33uF, 330uF, 3300uF 3.6pF, 36pF, 360pF, 3600pF 3.9pF, 39pF, 390pF, 3900pF 4.3pF, 43pF, 430pF, 4300pF 4.7pF, 47pF, 470pF, 4700pF, 0.047uF, 0.47uF, 4.7uF, 47uF, 470uF, 4700uF 5.1pF, 51pF, 510pF, 5100pF 5.6pF, 56pF, 560pF, 5600pF 6.2pF, 62pF, 620pF, 6200pF 6.8pF, 68pF, 680pF, 6800pF, 0.068uF, 0.68uF, 6.8uF, 68uF, 680uF, 6800uF 7.5pF, 75pF, 750pF, 7500pF 8.2pF, 82pF, 820pF, 8200pF 9.1pF, 91pF, 910pF, 9100pF #generics #CommonPartsLibrary
    jharwinbarrozo
    1.5M
  • Generic Inductor
    Generic Inductor
    A generic fixed inductor suitable for rapid circuit topology development. The footprint automatically adapts based on the selected package, supporting standard SMD sizes (e.g., 0402, 0603, 0805) as well as well-known inductor packages such as SDR1806, PA4320, SRN6028, and SRR1260. Standard inductor values: 1.0 nH, 10 nH, 100 nH, 1.0 µH, 10 µH, 100 µH, 1.0 mH 1.2 nH, 12 nH, 120 nH, 1.2 µH, 12 µH, 120 µH, 1.2 mH 1.5 nH, 15 nH, 150 nH, 1.5 µH, 15 µH, 150 µH, 1.5 mH 1.8 nH, 18 nH, 180 nH, 1.8 µH, 18 µH, 180 µH, 1.8 mH 2.2 nH, 22 nH, 220 nH, 2.2 µH, 22 µH, 220 µH, 2.2 mH 2.7 nH, 27 nH, 270 nH, 2.7 µH, 27 µH, 270 µH, 2.7 mH 3.3 nH, 33 nH, 330 nH, 3.3 µH, 33 µH, 330 µH, 3.3 mH 3.9 nH, 39 nH, 390 nH, 3.9 µH, 39 µH, 390 µH, 3.9 mH 4.7 nH, 47 nH, 470 nH, 4.7 µH, 47 µH, 470 µH, 4.7 mH 5.6 nH, 56 nH, 560 nH, 5.6 µH, 56 µH, 560 µH, 5.6 mH 6.8 nH, 68 nH, 680 nH, 6.8 µH, 68 µH, 680 µH, 6.8 mH 8.2 nH, 82 nH, 820 nH, 8.2 µH, 82 µH, 820 µH, 8.2 mH #generics #CommonPartsLibrary
    jharwinbarrozo
    15.7k
  • Terminal
    Terminal
    An electrical connector acting as reusable interface to a conductor and creating a point where external circuits can be connected.
    natarius
  • RMCF0805JT47K0
    RMCF0805JT47K0
    47 kOhms ±5% 0.125W, 1/8W Chip Resistor 0805 (2012 Metric) Automotive AEC-Q200 Thick Film #forLedBlink
    jharwinbarrozo
    1.2M
  • 875105359001
    875105359001
    10uF Capacitor Aluminum Polymer 20% 16V SMD 5x5.3mm #forLedBlink #commonpartslibrary #capacitor #aluminumpolymer #radialcan
    jharwinbarrozo
    1.2M
  • CTL1206FYW1T
    CTL1206FYW1T
    Yellow 595nm LED Indication - Discrete 1.7V 1206 (3216 Metric) #forLedBlink
    jharwinbarrozo
    1.1M

Timelapse Timer

Timelapse Timer thumbnail
Photography Timer based on ATMEGA8-16AU controller, OLED display and button controls.

Properties

Properties describe core aspects of the project.

Pricing & Availability

Distributor

Qty 1

Digi-Key

$3.72–$4.20

LCSC

$4.71–$6.22

Mouser

$4.14–$4.30

Controls