Description: Product Features: The thermistor module is very sensitive to the ambient temperature. It is generally used to detect the temperature of the surrounding environment. The NTC thermistor sensor has good sensitivity. The temperature detection range is 20-80 degrees Celsius. The sensor has a special M3 fixed mounting hole, which is easy to use and adjust the direction and fixation. The wide-voltage LM393 comparator is used. The signal is clean, the waveform is good, the driving ability is strong, and it exceeds 15mA. Product Parameters: Working voltage: DC3.3-5V Instructions for use: By adjusting the potentiometer, you can change the temperature detection threshold (that is, control the temperature value). If you need to control the ambient temperature to 50 degrees, the module will turn its green light on at the corresponding ambient temperature, and DO will output a low level. When the temperature is lower than this set value, the high level is output, and the green light is off. The digital output D0 of the module can be directly connected to the single chip microcomputer. The output DO can directly drive the relay module, which can form a temperature control switch to control the operating temperature of related equipment, and can also be connected to a fan for heat dissipation. The small board analog output AO can be connected to the AD module. Through AD conversion, it can Get more accurate values for ambient temperature. This module can also be replaced with a temperature sensor with a line for the control of water temperature, water tank, etc. Connect VCC and GND, the power indicator of the module will be on. Place the module on the desktop, adjust the blue potentiometer on the board until the switch indicator on the board is on, and then slightly adjust it to let the switch indicator go out. The temperature of the thermistor rises, and the module switch indicator will light up. If the temperature of the thermistor is lowered again, the switch indicator will go out again. This phenomenon indicates that the ambient temperature can trigger the module, so that the switch indicator lights. Pin Definition: VCC: external 3.3V-5V voltage (can be directly connected to 5V microcontroller and 3.3V microcontroller) GND: external GND DO: Small board digital output interface (0 and 1) AO: Small board analog output interface Precautions: Correct wiring! Do not connect the positive and negative terminals in the opposite direction to burn the board's electronic components. Introduction: On-board LM393 voltage comparator chip and temperature sensor probe, on-board signal output indication, the output effective signal is low level and the indicator light is on, and the output signal can be directly connected with the single chip microcomputer 10. Product Parameters: 1. Support 5V / 3.3V voltage input 2. The sensitivity of signal detection can be adjusted 3. With 3mm screw holes, easy to fix and install; Interface Description: VCC: power + GND: power - OUT: module digital output interface (0 and 1)
Price: 4.75 USD
Location: ShenZhen
End Time: 2024-11-25T03:40:31.000Z
Shipping Cost: 2.99 USD
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Item Specifics
Restocking Fee: No
Return shipping will be paid by: Buyer
All returns accepted: Returns Accepted
Item must be returned within: 30 Days
Refund will be given as: Money back or replacement (buyer's choice)
Brand: Unbranded
MPN: 1
