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Load cells use a four-wire Wheatstone bridge to connect to the HX711
The MQ series of gas sensors utilize a small heater inside with an electrochemical sensor these sensors are sensitive to a range of gasses are used at room temperature
especially when running on coin cells or AA/AAA batteries
Comparison: 2
Light Dependent Resistor (LDR)
12V 4CH Relay Board Boards Beagle Bone Load cells use a four-wire12V 4CH Relay Board This is a 12V 4 Channel Relay interface board. It can be used to control various appliances and other equipment with large current. The 4 channel relay board can be controlled directly by Micro controller (Arduino, 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic). This 12V relay switch is useful in creating a central hub from where multiple remote loads can be powered. It is useful for tasks like home automation where the module
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