Circuit Modules & Development Board
Description: This is a DC-DC step-down power module based on MP1584, small size, lightweight, especially for Arduino, smart cars and other items. Features: - Input voltage: 7V-30VDC- Output voltage: 1.2-20VDC(Input voltage should be 1.8V higher than the output voltage or more.)- No-load current: les..
$42.99
Ex Tax:$42.99
Feature: Onboard 2W mono amplifier (5V power supply up to 3W) can directly connected speakers (recommended with 4Ω3W speakers), 3.5mm gold-plated headphone jack can be accessed by headphones or external audio. With MicroUSB power supply interface, using mobile bank power or USB charger power suppl..
$27.99
Ex Tax:$27.99
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Overview:
- The gas sensing material used in the MQ-2B gas sensor is tin dioxide (SnO2) with lower conductivity in clean. When there is a flammable gas in the environment where the sensor is located, the conductivity of the sensor increases as the concentration of flammable gas in the inc..
$22.99
Ex Tax:$22.99
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Feature:
The sensor has a high sensitivity to alcohol vapors (SnO2), and faster response time.
The sensor can measure low concentrations of alcohol vapor in the air. The sensor may operate at temperatures ranging from -10 to 50 ° C and consumes about 900mA at 5V.
Analog and digital output..
$86.99
Ex Tax:$86.99
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Overview: - The gas sensing material used in the MQ-4B methane sensor is tin dioxide (SnO2) with lower conductivity in clean . When there is a flammable gas in the environment where the sensor is located, the conductivity of the sensor increases as the concentration of flammable gas in th..
$22.99
Ex Tax:$22.99
nullFeature: This is MQ-7 Carbon Monoxide Sensor. It detects the concentrations of CO gas and outputs it`s reading as an analog voltage. The sensor has a long life, high sensitivity and quickly response time. The sensor output signal is an analog resistance.The sensor can measure a low concentration..
$60.99
Ex Tax:$60.99
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>>>More details: Click here to open..
$24.99
Ex Tax:$24.99
Features: 1. NE555 chip onboard2. A single channel output, the output duty cycle square wave is about fifty percent3. Onboard adjustable resistance, resistance can be controlled to adjust the output frequency4. Working voltage: 5 - 12V 5. Board size: 29 (mm) x12 (mm) Package Included: 20 x NE555 ..
$14.99
Ex Tax:$14.99
Description: 1. Put on the power relay and delay suction. Specifically: after supplying 12V power supply to relay, relay will not absorb immediately. The state of output terminal of relay is: normally open and public disconnect, normally closed and public conduction; when the delay is 1-10S (adj..
$26.99
Ex Tax:$26.99
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20Pcs NE555 Pulse Frequency Duty Cycle Adjustable Module Square Wave Signal GeneratorFeatures:
1. As a square wave signal generator,generates a square wave signal used for experimental development.
2. Used to drive a stepper motor for generating a square wave drive signal.
3. Generate adjust..
$21.99
Ex Tax:$21.99
Features: -Size: 3.5CM * 3.6CM-The main chip: NE555;-Input voltage: 5V-15VDC. 5V power supply, the output current can about 15MA; 12V power supply, the output current can be so 35MA;-Input Current: ? 100MA-Output amplitude: 4.2V V-PP to 11.4V V-PP (depending on the input voltage, the output amplitu..
$31.99
Ex Tax:$31.99
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Feature:
1. Used as a square wave signal generator to generate square wave signals for experimental development.
2. Used to generate a square wave signal that drives the stepper motor driver.
3. Generate adjustable pulses for use by the MCU.
4. Generate adjustable pulses to..
$31.99
Ex Tax:$31.99