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The DS1990A serial number IButton is a rugged data carrier that serves as an electronic registration number for automatic identification. Data is transferred serially through the 1-Wire protocol, which requires only a single data lead and a ground return. Every DS1990A is factory lasered with a guaranteed unique 64-bit registration number that allows for absolute traceability. The durable stainless-steel iButton package is highly resistant to environmental hazards such as dirt, moisture, and shock. Its compact coin-shaped profile is selfaligning with mating receptacles, allowing the DS1990A to be used easily by human operators. -
MQ-135 is sensitive air quality sensor that detects NH3, NOx, alcohol, benzene, smoke, CO2, etc. Heater voltage 5V, 31 ohm (40mA consumption) The board has digital and analog output.FEATURES
- Detects NH3, NOx, alcohol, benzene, smoke, CO2, etc.
- Operating voltage 5V
- Operating current 40mA
- Both digital and analog output
- Popular sensor - a lot of examples available for different platforms
- Port explanation : AO for analog output, DO for digital output, GND for ground, VCC for 5V voltage input
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Specification Input voltage range: 5~24V; Output voltage range: 0.93V~18V Features DC-DC adjustable step-down module Application Various electronic products or DIY projects English Manual/Spec Yes Other Input voltage range: 5~24V; Output voltage range: 0.93~18V (buck mode, enter at least greater than the output 2V above); Output current: 2.5A; Output peak 4A continuous output; Switch: With soft-off feature; Shutdown current low microampere level; Size: 45mm x 32mm x 16mm; Technical description: Measured efficiency: 12V converts to 5V: 12V converts to 5V efficiency = (5V x 1.001A) / (12V x 0.431) = 96.7%; 18V converts to 12V: 18V to 12V Efficiency = (12.019V x 1.001A) / (18.01V x 0.679) = 98.38% -
- Drive a 2-phase bipolar stepper motor or two DC motors with the L298 dual H-Bridge chip, mounted on this handy breakout board along with all necessary peripherals!
- It is ideal for robotic applications and well suited for connection to a microcontroller requiring just a couple of control lines per motor. It can also be interfaced with simple manual switches, TTL logic gates, relays, etc.
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This module is based on the very popular L298 Dual H-Bridge Motor Driver Integrated Circuit. The circuit will allow you to easily and independently control two motors of up to 2A each in both directions. It is ideal for robotic applications and well suited for connection to a microcontroller requiring just a couple of control lines per motor. It can also be interfaced with simple manual switches, TTL logic gates, relays, etc.Features
- Motor supply : 7 to 24 VDC
- Control Logic : Standard TTL Logic Level
- Output Power : Up to 2 A each
- Enable and Direction Control Pins
- Heatsink for IC
- Power-On LED indicator
- 4 Direction LED indicators
Specifications
- Module Type Driver
- Weight : 35.00g
- Board Size : 5.5 x 5 x 2.9cm
- Version : 1
- Operation Level : Digital 5V
- Power Supply : External 12V
- External : 7V
- External : 9V
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This SHARP distance sensor bounces IR off objects to determine how far away they are. It returns an analog voltage that can be used to determine how close the nearest object is. These sensors are good for short-range detection. • Infrared range finder 10cm (~4") to 80cm (~30") • Analog interface • Lead free, ROHS compliant • Replaces the discontinued GP2D12 -
Specifications Modulation: Digital Torque: 4.8V: 130.54 oz-in (9.40 kg-cm) 6.0V: 152.76 oz-in (11.00 kg-cm) Speed: 4.8V: 0.20 sec/60° 6.0V: 0.16 sec/60° Weight: 1.94 oz (55.0 g) Dimensions: Length:1.60 in (40.7 mm) Width:0.78 in (19.7 mm) Height:1.69 in (42.9 mm) Gear Type: Metal Pulse Cycle: 1 ms Connector Type: JR -
The Arduino Motor Shield is based on the L298, which is a dual full-bridge driver designed to drive inductive loads such as relays, solenoids, DC and stepping motors. It lets you drive two DC motors with your Arduino board, controlling the speed and direction of each one independently. You can also measure the motor current absorption of each motor, among other features. -
Operating temperature -30 to 80 Operating Voltage 3.3V-4.2V Power Voltage 3.4V Standby average current 3ma the following Stand by GSM / GPRS Four bands, including 850,900,1800,1900MHZ GPRS Class 10 Sensitivity -105 Support voice calls Stand by SMS SMS Stand by GPRS Data services, the maximum data rate, downloads 85.6Kbps, Upload 42.8Kbps Supports standard GSM07.07,07.05 AT Command and Ai Thinker Extended Command Stand by 2 A serial port, a serial port to download, a AT Command port AT Command supports standard AT and TCP / IP Command interface It supports digital audio and analog audio support HR , FR , EFR , AMR Speech coding Stand by ROHS , FCC , CE , CTA Certification SMT 42PIN Packaging
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