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  1. Octopus Active buzzer Brick is based on an active buzzer, and can not control the volume by PWM. The volume is constant. And passive distinction is the buzzer posted sign.

    This item would be removed off after selling out.

    News: All of Octopus bricks has supported Scratch programming. ElecFreaks builded EFBlock support drag and drop programming . Guide please check here

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  2. Temperature and humidity sensor is a module based on DHT11 digital temperature and humidity sensing element. Simple design,and sensitive to the ambient temperature and humidity changes, it can be used for temperature alarm, humidity testing and other works. 3P Octopus Bricks Interface´╝îinput 5V - GND, S for signal output.

    News: All of Octopus bricks has supported Scratch programming. ElecFreaks builded EFBlock support drag and drop programming . Guide please check here

    Learn More
  3. This is a Rain/steam sensor from ElecFreaks. This steam sensor can be connected to the Arduino IO Expansion shield directly. The output voltage will increase when the humidity of the sensor surface goes up. You even could use it as a touch panel.

    News: All of Octopus bricks has supported Scratch programming. ElecFreaks builded EFBlock support drag and drop programming . Guide please check here

    Learn More
  4. MAX6675 is a 12-bit resolution Serial K-type thermocouple converter, produced by American company MAXIM, with merits of cold junction compensation, linearity correction, thermocouple break detection and so on. Based on the principle of the chip, our module is available to measure temperature, using the three-wire SPI communication, plus a K-type thermocouple probe connected to Arduino mainboard. Measurement results can be displayed in Arduino IDE. (We are using IIC / SPI_LCD module to display the measurement results) Module can be used in room temperature measurement, also refrigerator, power room, textile machinery, air conditioners and other small space industrial equipment temperature measurement .

    This item would be removed off after selling out.

    News: All of Octopus bricks has supported Scratch programming. ElecFreaks builded EFBlock support drag and drop programming . Guide please check here

    Learn More
  5. Octopus 5mmLED light Brick, and special sensors Arduino board and ambient light sensor extension combination, can be used in the interaction with the light works. When the LED light module connected to Arduino, the digital pin (LOW on, HIGH off) is used to control it. The brightness of LED can be controlled via PWM output.

    News: All of Octopus bricks has supported Scratch programming. ElecFreaks builded EFBlock support drag and drop programming . Guide please check here

    Learn More
  6. The Voltage Divider can detect the supply voltage upto 80V. The Voltage Divider module is based on resistor(1K and 15K Precision resistors) divider principle. The voltage detection module allows the input voltage to reduce 16 times. As the Arduino analog input voltage is up to 5V, so voltage detection module's input voltage can not be greater than the 5Vx16 = 80V. Because of the Arduino's 10 bit ADC, that means sampling resolution are 0.00489V(5V/1023).So the module's minimum input voltage is 0.00489Vx5=0.02445V.

    This item would be removed off after selling out.

    News: All of Octopus bricks has supported Scratch programming. ElecFreaks builded EFBlock support drag and drop programming . Guide please check here

    Learn More
  7. Octopus Soil Moisture Sensor Brick can read the amount of moisture present in the soil surrounding it. It's a low tech sensor, but ideal for monitoring an urban garden, or your pet plant's water level. This is a must have tool for a connected garden! This sensor uses the two probes to pass current through the soil, and then it reads that resistance to get the moisture level. More water makes the soil conduct electricity more easily (less resistance), while dry soil conducts electricity poorly (more resistance). It will be helpful to remind you to water your indoor plants or to monitor the soil moisture in your garden.

    News: All of Octopus bricks has supported Scratch programming. ElecFreaks builded EFBlock support drag and drop programming . Guide please check here

    Learn More
  8. Touch PAD Brick is a sensor module mainly through the capacitive touch TTP223-BA6 charge IC and the body of pressure, ceramics, glass and other dielectric materials, and the charge level is used to detect small changes in a touch switch of a sensor module.Circuit design is simple, just four operating modes. It has been widely used in induction cooker, microwave, washing machine, refrigerator, electronic scales, electronic watches, toys and other consumer products.

    This item would be removed off after selling out.

    News: All of Octopus bricks has supported Scratch programming. ElecFreaks builded EFBlock support drag and drop programming . Guide please check here

    Learn More
  9. Octopus Hunt Sensor is a sensor based on TCRT5000 photoelectric sensitive element.It can sensitively detect the infrared reflected signal. Together with Arduino specific sensor shield, Hunt Sensor can be widely used in many fields, ranging from performing black and white line detection, obstacle detection , to shredding detection for fax machine or paper shredder, meter pulse data sampling and other related works Adjustable sensitivity (shown in blue digital potentiometer adjustment). Three pins electronic building blocks interface: input 5V - GND. S pin output digital voltage signal 0-1 Operating voltage: DC 5.0V.

    News: All of Octopus bricks has supported Scratch programming. ElecFreaks builded EFBlock support drag and drop programming . Guide please check here

    Learn More
  10. Photo Interrupter Sensor is a sensor module based on ITR9608 photoelectric switch, together with special Arduino shield in use.It has been widely used in parts counting, motor speed and so on. Three pins electronic building blocks interface, input 5V - GND, S for digital signal output.

    This item would be removed off after selling out.

    News: All of Octopus bricks has supported Scratch programming. ElecFreaks builded EFBlock support drag and drop programming . Guide please check here

    Learn More

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