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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% -
DHT11 digital temperature and humidity sensor is a composite Sensor contains a calibrated digital signal output of the temperature and humidity. Application of a dedicated digital modules collection technology and the temperature and humidity sensing technology, to ensure that the product has high reliability and excellent long-term stability. The sensor includes a resistive sense of wet components and an NTC temperature measurement devices, and connected with a high-performance 8-bit microcontroller.
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This module integrates DHT11 sensor and other required components on a small PCB. The DHT11 sensor includes a resistive-type humidity measurement component, an NTC temperature measurement component and a high-performance 8-bit micro controller inside, and provides calibrated digital signal output. It has high reliability and excellent long-term stability, thanks to the exclusive digital signal acquisition technique and temperature & humidity sensing technology.
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1. Feature & Application: * Full range temperature compensated * Relative humidity and temperature measurement * Calibrated digital signal *Outstanding long-term stability *Extra components not needed * Long transmission distance * Low power consumption *4 pins packaged and fully interchangeable 2. Description: DHT22 output calibrated digital signal. It utilizes exclusive digital-signal-collecting-technique and humidity sensing technology, assuring its reliability and stability.Its sensing elements is connected with 8-bit single-chip computer. Every sensor of this model is temperature compensated and calibrated in accurate calibration chamber and the calibration-coefficient is saved in type of program in OTP memory, when the sensor is detecting, it will cite coefficient from memory. Small size & low consumption & long transmission distance(20m) enable DHT22 to be suited in all kinds of harsh application occasions.
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Features: >The smallest Arduino Compatible breakout board measuring less than 1 square inch! >Support for the Arduino IDE 1.0 (OSX/Win/Linux). >Power via USB or External Source: 7V - 35V DC (12v or less recommended). >Automatic selection between 5V USB and External Source for Power. >On-board 500ma 5V Regulator. >On-board microUSB port for easy programming & power. >6 I/O Pins: 2 pins (P3 & P4) are tied to USB (This means if your program actively communicates over USB they will be in use. If your program does not actively communicate over USB you can use all 6 I/O pins after programming via USB). >8k Flash Memory (about 6k after bootloader). >Communication Protocols Supported: I2C and SPI T. >PWM on 3 pins (more possible with Software PWM). >ADC on 4 pins. >Power LED and Status LED on-board.
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General Description GY-26-USART is a low cost plane digital compass module. The working principle is utilizing magnetoresistive sensor sensing the Earth's magnetic field component to get an azimuth angle. It communicates with upper computer through UART. Output format is ASCII. With solid state compass design, it has stable operation, high accuracy and advanced hard iron compensation function. It can overcome surrounding magnetic interference. Baud rate is optional. The product has three work modes; Normal mode, continuous mode and calibration mode. You can choose UART or IIC communication to use it.