• Terminal
    Terminal
    An electrical connector acting as reusable interface to a conductor and creating a point where external circuits can be connected.
  • Ground
    A common return path for electric current. Commonly known as ground.
  • Net Portal
    A net identifier used to create connectivity to other Net Portal with the same designator. #portal
  • Power Net Portal
    Power net portal is a special schematic object used to define a power or ground net. Power ports allow you to conveniently indicate a power net at any location in the design. Power nets of the same designator automatically connect throughout your design #portal #power
  • Generic Resistor
    A generic fixed resistor for rapid developing circuit topology. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard resistor values: 1.0Ω 10Ω 100Ω 1.0kΩ 10kΩ 100kΩ 1.0MΩ 1.1Ω 11Ω 110Ω 1.1kΩ 11kΩ 110kΩ 1.1MΩ 1.2Ω 12Ω 120Ω 1.2kΩ 12kΩ 120kΩ 1.2MΩ 1.3Ω 13Ω 130Ω 1.3kΩ 13kΩ 130kΩ 1.3MΩ 1.5Ω 15Ω 150Ω 1.5kΩ 15kΩ 150kΩ 1.5MΩ 1.6Ω 16Ω 160Ω 1.6kΩ 16kΩ 160kΩ 1.6MΩ 1.8Ω 18Ω 180Ω 1.8KΩ 18kΩ 180kΩ 1.8MΩ 2.0Ω 20Ω 200Ω 2.0kΩ 20kΩ 200kΩ 2.0MΩ 2.2Ω 22Ω 220Ω 2.2kΩ 22kΩ 220kΩ 2.2MΩ 2.4Ω 24Ω 240Ω 2.4kΩ 24kΩ 240kΩ 2.4MΩ 2.7Ω 27Ω 270Ω 2.7kΩ 27kΩ 270kΩ 2.7MΩ 3.0Ω 30Ω 300Ω 3.0KΩ 30KΩ 300KΩ 3.0MΩ 3.3Ω 33Ω 330Ω 3.3kΩ 33kΩ 330kΩ 3.3MΩ 3.6Ω 36Ω 360Ω 3.6kΩ 36kΩ 360kΩ 3.6MΩ 3.9Ω 39Ω 390Ω 3.9kΩ 39kΩ 390kΩ 3.9MΩ 4.3Ω 43Ω 430Ω 4.3kΩ 43KΩ 430KΩ 4.3MΩ 4.7Ω 47Ω 470Ω 4.7kΩ 47kΩ 470kΩ 4.7MΩ 5.1Ω 51Ω 510Ω 5.1kΩ 51kΩ 510kΩ 5.1MΩ 5.6Ω 56Ω 560Ω 5.6kΩ 56kΩ 560kΩ 5.6MΩ 6.2Ω 62Ω 620Ω 6.2kΩ 62KΩ 620KΩ 6.2MΩ 6.8Ω 68Ω 680Ω 6.8kΩ 68kΩ 680kΩ 6.8MΩ 7.5Ω 75Ω 750Ω 7.5kΩ 75kΩ 750kΩ 7.5MΩ 8.2Ω 82Ω 820Ω 8.2kΩ 82kΩ 820kΩ 8.2MΩ 9.1Ω 91Ω 910Ω 9.1kΩ 91kΩ 910kΩ 9.1MΩ #generics #CommonPartsLibrary
  • Generic Capacitor
    A generic fixed capacitor for rapid developing circuit topology. 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 10,000uF 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 20pF 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
  • Generic Inductor
    A generic fixed inductor for rapid developing circuit topology. *You can now change the footprint and 3D model at the top level anytime you want. This is the power of #generics
  • 875105359001
    10uF Capacitor Aluminum Polymer 20% 16V SMD 5x5.3mm #forLedBlink #commonpartslibrary #capacitor #aluminumpolymer #radialcan
  • CTL1206FYW1T
    Yellow 595nm LED Indication - Discrete 1.7V 1206 (3216 Metric) #forLedBlink
  • 1070TR
    Battery Holder (Open) Coin, 20.0mm 1 Cell SMD (SMT) Tab bate or batt #forLedBlink
explain this project.

@copilot explain this project.
4mo
Absolutely! Let me give you an overview of your Energy Meter Module project.
Overview
This project is designed as a compact energy meter for edge computing and low-power Internet of Things (IoT) applications. It leverages an ATTiny85-20SU microcontroller to sense current using an ACS712ELCTR-20A-T module and display the data in real-time on an OLED display. There are three buttons (NEXT, MENU, and OK) for user interaction.
Main Components 1. Microcontroller: ATTiny85-20SU (U1)

  • A compact microcontroller suitable for small projects.
  • Handles data processing and communication with the OLED display and buttons.
2. Current Sensor: ACS712ELCTR-20A-T (U2)

  • Measures the current flowing through the circuit.
  • Provides an analog voltage output proportional to the current.
3. Power Supply: HLK-5M05 (PS1)

  • Converts AC voltage to a stable 5V DC supply necessary for powering the components.
4. Buttons: TS-1088R-02026 (OK, MENU, NEXT)

  • Three tactile switches are used for user inputs.
5. OLED Display (OLED1)

  • Displays real-time current readings.
  • Connected via the I2C interface with SDA and SCL pins.
Connections Power Connections

  • Power Supply to Components:

    • Connect PS1: +VO to VCC pins of U1, U2, and OLED1.
    • Ground (PS1: -VO to GND pins of all components): Connect PS1:-VO to U1:GND, U2:GND, and OLED1:GND.
Sensor Connections Display Connections Button Connections Capacitors and Resistors

  • Filter Capacitors (C2, C3, etc.) and resistors (R5, R6) are used for signal conditioning and circuit stability.
SPI Interface

  • ISP programming header J2 connected to MOSI, MISO, SCK, and RESET of the ATTiny85.
By connecting these components as described, the ATTiny85 microcontroller reads the current value from the ACS712 sensor and displays it on the OLED display. The buttons are used for navigating through the UI or adjusting settings.
Would you like to dive deeper into any specific part of the project?
4mo
Someone is typing...
U2
Not Recommended for New Designs
+5V
AC_L
C7
Capacitance
100n F
+5V
C1
Capacitance
47u F
C4
Capacitance
47u F
C8
Capacitance
1n F
J1
GND
Current
+5V
+5V
U1
+5V
AC_N
C2
Capacitance
0.1u F
C3
Capacitance
0.1u F
+5V
+5V
PS1

Energy Meter Module

Energy Meter Module
Description

Created
January 8th 2024
Last updated by vasy_skral
a year ago
1 Contributor(s)
vasy_skral

Controls

Availability & Pricing

DistributorQty 1
Digi-Key$3.97–$5.99
LCSC$9.28
Mouser$5.99

Assets

    Thumbnail
  • thumbnail
    Energy Meter Module-removebg-preview.png

    id=Energy Meter Module-removebg-preview

Simulation

µs

Simulation Speed

add bluetooth
add bluetooth
4mo
Someone is typing...
Checks that the power traveling across a given resistor is under its rating with 50% headroom.
Learn more
Checks that IC pins that require pull up or pull down resistors have them.
Learn more
Checks that capacitors have appropriate voltage ratings to prevent overheating and ensure reliable circuit operation.
Checks that all parts have a part number and are available from distributors.
Reports copper elements that are shorting.
Reports parts that have no footprint.
Reports nodes that are assigned to a layer that doesn't exist in the layout stackup.
Designator
Ruleset
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Override rule for Buzzer_D10mm_H4.5mm_P4mm
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*`REF`*
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*`REF`*
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*`REF`*
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*`REF`*
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Text Shape
Override rule for Text Shape
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Override rule for *`REF`*
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Override rule for *`REF`*
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Override rule for *`REF`*
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Override rule for Text Shape
*`REF`*
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Override rule for Text Shape
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Remove VALUEs
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Layout
Reports terminals that are not connected properly. NOTE: Only connections to the center of pads are considered valid.
Reports nodes that are using rules that are not supported anymore.
Reports layers that have multiple copper fills of different nets. Make sure the Connected Layers rule value of nets with fills is valid.
Detect any via, trace or copper fill island that is not connected to any net.