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Find schematic issues

please explain what U1 does.

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please explain what D1 does.

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32
this is a schematic of a 1S BMS, how hard would it be, to make it 4S capable ins...

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35
what is the current through R5

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please explain what REMOTE does.

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5
New Comment

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add an audio amplifier

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please explain what U1 does.

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what does this circuit do

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list all U1 pins in a table format. For each pin provide its pin number, pin nam...

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please explain what VCC, R5, U2 do.

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please explain what U2 does.

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please explain what U2 does.

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why R5 is 220?

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3
123

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please explain what R6, R12, R26, R30, R25, R8, R29, R22, R24 do.

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list all ICs and the decoupling capacitors attached to each. Ensure to include a...

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please explain what R1 does.

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can I change this with ATTINY441

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are there any issues in this project?

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create a detailed step by step plan table for this project to verify its functio...

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please explain what Y1 does.

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explain this project.

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please explain what U1 does.

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9
create a detailed step by step plan table for this project to verify its functio...

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25
explain this project.

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8

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please explain what U1 does.

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please explain what J2 does.

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please explain what F1 does.

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can you cannect 2nd pin of attiny841-ssu to R5

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F1
C4
Capacitance
22pF
R6
Resistance
3.3 Ω
R18
Resistance
2.2KΩ
C1
Capacitance
100nF
R21
Resistance
10KΩ
C5
Capacitance
22pF
R3
Resistance
6.8KΩ
R2
Resistance
1KΩ
R14
Resistance
510 Ω
R1
Resistance
500 Ω
R12
Resistance
3.3 Ω
J2
R26
Resistance
3.3 Ω
R16
Resistance
2.2KΩ
REMOTE
D2
R4
Resistance
2.7KΩ
R19
Resistance
10KΩ
R30
Resistance
3.3 Ω
R25
Resistance
3.3 Ω
R5
Resistance
220 Ω
R8
Resistance
3.3 Ω
R23
Resistance
10KΩ
R29
Resistance
3.3 Ω
R22
Resistance
3.3 Ω
R24
Resistance
3.3 Ω
R20
Resistance
10KΩ
R15
Resistance
10KΩ
C2
Capacitance
1uF
R17
Resistance
2.2KΩ
U1
Manufacturer Part Number
ATTINY841-SSU
LED4
LED3
H1
D1
End of Life
H3
Q1
H2
VCC
MISO
VREF
VCC
VCC
TXD0
POWER
RXD0
RESET
VCC
DUMP_LOAD_ENABLE
TX
ENABLE
SCK
RX
VCC
MISO
VREF
MOSI
RESET
VCC
SCK
VREF
EXTTEMP1
MISO
MOSI
ENABLE
Y1
ENABLE
RXD0
VREF
U2
SCK
MOSI
DUMP_LOAD_ENABLE
TXD0
VCC
RESET

BMS