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    V. Z. Parton, E. M. Morozov Mechanics of Elastic-Plastic Fracture: Fundamentals of Fracture Mechanics ndefo okigbo the mechanics of construction soil V. Z. Parton, E. M. Morozov Mechanics of Elastic-Plastic Fracture: Fundamentals of Fracture Mechanics купить
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      V. Z. Parton, E. M. Morozov Mechanics of Elastic-Plastic Fracture: Special Problems of Facture Mechanics / Механика упругопластического разрушения. Специальные задачи механики разрушения ndefo okigbo the mechanics of construction soil V. Z. Parton, E. M. Morozov Mechanics of Elastic-Plastic Fracture: Special Problems of Facture Mechanics / Механика упругопластического разрушения. Специальные задачи механики разрушения купить
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        Texts on Computational Mechanics: Volume 5: Dynamics of Structures ndefo okigbo the mechanics of construction soil Texts on Computational Mechanics: Volume 5: Dynamics of Structures купить
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          Itead Electronic Brick -Soil Moisture Sensor - Deep Blue ndefo okigbo the mechanics of construction soil Itead Electronic Brick -Soil Moisture Sensor - Deep Blue купить
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            В. И. Коган, В. М. Галицкий Problems in Quantum Mechanics ndefo okigbo the mechanics of construction soil В. И. Коган, В. М. Галицкий Problems in Quantum Mechanics купить
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              3Pairs/Pack Mechanics Work Gloves Breathe Waterproof Nitril Coating Nylon Safety Garden Gloves Gardening ,Construction Gloves ndefo okigbo the mechanics of construction soil 3Pairs/Pack Mechanics Work Gloves Breathe Waterproof Nitril Coating Nylon Safety Garden Gloves Gardening ,Construction Gloves купить
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                Soil Hygrometer Humidity Detection Moisture Sensor Module for Arduino - Blue + Golden ndefo okigbo the mechanics of construction soil Soil Hygrometer Humidity Detection Moisture Sensor Module for Arduino - Blue + Golden купить
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                  Effect of Nutrient Management on Soil Properties and Onion Production ndefo okigbo the mechanics of construction soil Effect of Nutrient Management on Soil Properties and Onion Production купить
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                    1/50 Norscot 55165 Caterpillar Cat 825H Soil Compactor Construction vehicles toy ndefo okigbo the mechanics of construction soil 1/50 Norscot 55165 Caterpillar Cat 825H Soil Compactor Construction vehicles toy купить
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                      3 in1 Plant Flowers Soil PH Tester Moisture Light Meter ndefo okigbo the mechanics of construction soil 3 in1 Plant Flowers Soil PH Tester Moisture Light Meter купить
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                        The new upgraded version of the drawing package drawing tools construction machinery drawing instrument student drawing tool set ndefo okigbo the mechanics of construction soil The new upgraded version of the drawing package drawing tools construction machinery drawing instrument student drawing tool set купить
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                          Norscot 1/50 CAT Military 815F Soil Compactor NRS55254 Original packing Construction vehicles toy ndefo okigbo the mechanics of construction soil Norscot 1/50 CAT Military 815F Soil Compactor NRS55254 Original packing Construction vehicles toy купить
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                              Soil Humidity Detection Sensor Module - Black + Pale Golden ndefo okigbo the mechanics of construction soil Soil Humidity Detection Sensor Module - Black + Pale Golden купить
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                                Daerholt J.D. Mechanics. Students Book. Учебник ndefo okigbo the mechanics of construction soil Daerholt J.D. Mechanics. Students Book. Учебник купить
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                                What is an electronic brick? An electronic brick is an electronic module which can be assembled like Lego bricks simply by plugging in and pulling out. Compared to traditional universal boards and circuit modules assembled with various electronic components electronic brick has standardized interfaces plug and play simplifying construction of prototype circuit on ones own. There are many types of electronic bricks and we provide more than twenty types with different functions including buttons sensors Bluetooth modules etc whose functions cover from sensor to motor drive from Ethernet to wireless communication via Bluetooth and so on. We will continue to add more types to meet the various needs of different projects. Electronic brick of soil moisture sensor is mainly used to detect the moisture content in the soil. The control board can get the moisture value or threshold in the soil via analog or digital pins. Features 1. Plug and play easy to use. Compatible with the mainstream 2.54 interfaces and 4-Pin Grove interfaces in the market. 2. With use of M4 standard fixed holes compatible with M4-standard kits such as Lego and Makeblock. 3. With switch to shift between analog and digital output. Able to read the specific soil moisture information (analog) or the over-wet or over-dry soil information according to the threshold (digital). The adjustable potentiometer is used to set the moisture threshold. 4. With hysteresis comparator circuit for more stable digital output voltage. Specifications Working voltage 3.3 or 5V DC Operating voltage 3.3 or 5V DC Note 1: D for digital output port A for analog output port S for analog/digital output port ( defined according to the switch) V and G for voltage at the common collector and ground respectively Note 2: When setting as analog output output range is 0-3.3V or 0-5V according to the working voltage; when setting as digital output output is 0/3.3V or 0/5V according to the working voltage. Electrical characteristics Parameter Min. Typical Max. Unit Working voltage 2.1 5 5.5 VDC Analog output voltage(VCC=5V) 0 Vout 5 V Digital output voltage(VCC=5V) 0 - 5 V Working current(VCC=5V) - 5 - mA Threshold hysteresis ΔUth - VCC*0.09 - V Switch and indicator 1. Regulating of threshold voltage: The threshold voltage is a voltage for comparison. When the soil moisture value read by the sensor is above the threshold value a low level (0V) will be digitally output; when the soil moisture value read by the sensor is below the threshold value a high level (3.3V or 5V) will be digitally output. In this way the digital pin can be used directly to read the current soil moisture value to see if it is above the threshold or not. The threshold voltage can be regulated by simply twisting the potentiometer which is shown in Figure 1. and it increases by rotating to left side and decreases by rotating to right side. 2. Switch to shift between analog and digital output For 4-pin Grove interface this switch makes no sense. For S pin in 2.54mm 3-pin interface it outputs analog signals when switch is pushed to A terminal and digital signals when pushed to D terminal. When there is analog signal output it can read the specific soil moisture value; when there is digital signal output it can only indicate whether the soil moisture value is above threshold value or not.

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