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

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Learn to Add a Component

BMS 7GaB

BMS 7GaB thumbnail
DIY BMS using ATTINY841-SSU this hardware has a higher balance current, fuse and TVS diode to help with voltage spikes. Most importantly, an external crystal to the micro controller (attiny841) which means the device is more reliable in low voltage situations

Properties

Properties describe core aspects of the project.

Pricing & Availability

Distributor

Qty 1

Digi-Key

$1.76–$3.69

LCSC

$4.00–$4.05

Mouser

$3.82

Controls