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U3
(negative) pin is GND

  • (negative) pin is GND
2y
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3
Just VBAT here?

Just VBAT here?
2y
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6
change from VCC?

change from VCC?
2y
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11
change VCC to +5V and connect it with pin 4 of the charger 3.3V will be not enou...

no, we will get +3.3V from LDO, we need to add it
2y
otherwise they cannot connect to the mcu pin?
2y
change the rest of VCC power nets to "+5V" as well?
2y
change VCC to +5V and connect it with pin 4 of the charger 3.3V will be not enough to charge li-ion bat
2y
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7
pin#2(VSS) is GND

ahh so I attach to a GND and not create a net portal
2y
pin#2(VSS) is GND
2y
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2
change from VCC?

change from VCC?
2y
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10
recommend a replacement for C70.

@copilot recommend a replacement for C70.
2y
Based on your project, C70 is a Polarized Capacitor with a capacitance of 10uF. It's important to note the voltage rating, tolerance, and package size when replacing. However, these properties are not provided in your project description.
Assuming you're using a commonly used voltage rating for a 10uF capacitor, a potential replacement could be the TDK C3216X7R1E106K. This is a 10uF, X7R, 25V rated SMT capacitor in an 1206 package size.
Please verify this replacement's compatibility with your circuit before use and adjust the rating according to your specific needs.
Let me know if you need more specific recommendations!
2y
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12
anything missing in this schematic? It's for a light array that emits light visu...

@copilot anything missing in this schematic? It's for a light array that emits light visualisation at the sound of music. There are 4 light sequences that can be cycled whenever one shakes the device (what the sensor is for)
look at the capacitors and see if they are in the correct range relative to the MCU and other key parts. Also look to see if there are any missing components having looked at all the current component's datasheets
2y
To make a comprehensive analysis of the schematic, I'll need to know the MCU model and the exact nature of the power supply for the circuit. However, based on the information you've provided, here are few observations:
  1. Capacitors: Most capacitors in the design are 0.1 µF, which are commonly used for decoupling purposes. These values are typically fine for decoupling in digital circuits, but the actual value depends on the specific requirements of the MCU and other ICs. The datasheets of the specific components should provide the recommended values.
  2. Power Supply: The capacitors C65, C66, C67, C68, C69, C70, C71, C72, and C73 are associated with the power supply, but without knowing the power requirements of your circuit and the nature of the power supply (e.g., battery, AC-DC converter), it's hard to determine if these values are appropriate.
  3. Microphone: MK1 is a microphone that presumably picks up the sound of the music. It would typically require an amplification stage to boost the signal before it's processed by the MCU. It appears that U1, the operational amplifier, is being used for this purpose, but I can't confirm without the full schematic.
  4. Sensor: U3 is a sensor, presumably for detecting shaking. If it's an accelerometer or a similar kind of motion sensor, it might require additional components for proper operation, such as resistors to set up a voltage divider, or capacitors for filtering.
  5. LEDs: The WS2812B LEDs typically require a 5V power supply and a specific data signal for control. It's unclear from the information provided if this is correctly set up.
  6. MCU: The schematic does not include an MCU or microcontroller. You mentioned an MCU in your description, but it's not listed in the project components. The MCU would control the LEDs based on the input from the sensor and the microphone.
Please provide more information or the full schematic for a more thorough analysis.
2y
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13
LED11
LED12
LED35
LED58
LED28
LED37
LED27
LED34
LED54
LED5
LED56
LED1
LED4
LED31
LED33
LED62
LED18
LED32
LED52
LED26
LED20
LED42
LED7
LED3
LED36
LED61
LED25
LED30
LED14
LED38
LED55
LED6
LED64
LED63
LED10
LED59
LED60
LED24
LED41
LED22
LED15
LED13
LED45
LED2
LED39
LED44
LED49
LED23
LED47
LED19
LED50
LED16
LED53
LED29
LED57
LED51
LED21
LED8
LED46
LED40
LED48
LED17
LED9
LED43
C44
Capacitance
0.1uF
C27
Capacitance
0.1uF
C26
Capacitance
0.1uF
C18
Capacitance
0.1uF
C57
Capacitance
0.1uF
C55
Capacitance
0.1uF
C62
Capacitance
0.1uF
C25
Capacitance
0.1uF
C29
Capacitance
0.1uF
C64
Capacitance
0.1uF
C52
Capacitance
0.1uF
C38
Capacitance
0.1uF
C53
Capacitance
0.1uF
C56
Capacitance
0.1uF
C46
Capacitance
0.1uF
C51
Capacitance
0.1uF
C28
Capacitance
0.1uF
C41
Capacitance
0.1uF
C33
Capacitance
0.1uF
C3
Capacitance
0.1uF
C15
Capacitance
0.1uF
C10
Capacitance
0.1uF
C42
Capacitance
0.1uF
C14
Capacitance
0.1uF
C30
Capacitance
0.1uF
C12
Capacitance
0.1uF
C54
Capacitance
0.1uF
C43
Capacitance
0.1uF
C16
Capacitance
0.1uF
C63
Capacitance
0.1uF
C49
Capacitance
0.1uF
C17
Capacitance
0.1uF
C70
Capacitance
0.1uF
C20
Capacitance
0.1uF
C2
Capacitance
0.1uF
C36
Capacitance
0.1uF
C40
Capacitance
0.1uF
C24
Capacitance
0.1uF
C59
Capacitance
0.1uF
C58
Capacitance
0.1uF
C60
Capacitance
0.1uF
C8
Capacitance
0.1uF
C34
Capacitance
0.1uF
C61
Capacitance
0.1uF
C4
Capacitance
0.1uF
C39
Capacitance
0.1uF
C48
Capacitance
0.1uF
C19
Capacitance
0.1uF
C50
Capacitance
0.1uF
C45
Capacitance
0.1uF
C35
Capacitance
0.1uF
C23
Capacitance
0.1uF
C9
Capacitance
0.1uF
C5
Capacitance
0.1uF
C11
Capacitance
0.1uF
C7
Capacitance
0.1uF
C32
Capacitance
0.1uF
C37
Capacitance
0.1uF
C31
Capacitance
0.1uF
C6
Capacitance
0.1uF
C22
Capacitance
0.1uF
C21
Capacitance
0.1uF
C1
Capacitance
0.1uF
C47
Capacitance
0.1uF
C13
Capacitance
0.1uF
VR1
Resistance
10kΩ
J1
C67
Capacitance
10uF
C68
Capacitance
10uF
C72
Capacitance
10uF
C65
Capacitance
10uF
C66
Capacitance
10uF
U5
U2
Resistance
1000000 Ω
R1
Resistance
10kΩ
SW1
MK1
Resistance
1000000 Ω
C73
Capacitance
4.7µF
R2
Resistance
2.2 Ω
R3
Resistance
470 Ω
C69
Capacitance
4.7µF
C71
Capacitance
470pF
U1
Not Recommended for New Designs
U4

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    Stingy Green Interocitor

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    Distributor

    Qty 1

    Digi-Key

    $14.73–$24.85

    LCSC

    $8.64

    Mouser

    $24.40

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