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Modules
3.3V TTL / bluetooth low energy / HM-10
 
(3)
$3.88
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TI CC2540 / CC2541 chip
$3.92
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transparent serial port
$6.59
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measurement range: DC 2.5~30V
 
(150)
$1.87
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13.56MHz
 
(1)
$3.96
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works w/ official Arduino boards
 
(7)
$2.64
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(1)
$1.86
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Arduino compatible / 0 to 50'C / 20% to 90% RH
 
(5)
$1.56
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Blue / Arduino compatible / Atmega328P-AU, 5V / 16MHz
 
(13)
$3.08
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10 Base-T / on-board MAC & PHY / 8KB buffer
$3.94
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DC 2.4-30V / blue LED light
 
(1)
$6.58 5-pk
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TM1638 driver chip
$3.63
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V1.06 / slave module / 3.3V level / Arduino compatible core module
$5.73
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6 kinds of sub-mode selectable
$11.71
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3.3-5.5V input / voice prompt
$4.65
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Arduino compatible / w/ 175mm jumper wire
$3.55
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DC 2.4-30V / green LED light
 
(2)
$5.08 5-pk
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over current/over temperature/short circuit protection
$3.84
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authentic / temperature control / USB input / power bank tester
$9.57
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w/ LCD display / w/ shell case / peak current: 3A
$5.47
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LCD display / backlight / w/ shell case
$7.40
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support USB audio / microSD card
$5.25
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DC 3-35V to DC 3.5-35V / 4-40V measuring range
 
(1)
$5.36
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15-24V input
$8.60
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for DIY laser engraver / 12V
$23.45
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temperature/time/resistor/power/electricity monitor
$17.72
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4-key remote control / enclosure / self-locking/momentary/interlock working mode
$13.28
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works w/ official Arduino boards
$15.81
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authentic / 1.44" LCD / numerical control / w/ integrated voltmeter & ammeter
 
(1)
$24.15
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short circuit/input reverse polarity/low battery protection
$25.89
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