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This KSD301 thermostat is used widely for coffee makers
The 500K Potentiometer is a passive electronic component that has two end terminals with a resistive element and the sliding contact called the wiper acts as the third terminal
These are Carbon Film Resistor with a value of 27 ohm 1/4W and tolerance of ±5%
After the module is triggered for ranging
5mm Number of Pins 10
IR Pulse (Heart Rate) Sensor Module speakers This KSD301 thermostat is usedThis component is ideally suited for adding heartbeat sensing to your project. This detection module combines a phototransistor and IR LED, which when a finger is placed between will provide a varying signal. Reading this analog signal you can interpret a change in signal as a heartbeat. As a simple module, it will suit use within a large range of projects based on microcontrollers such as Arduino boards and the Raspberry Pi. The module has M2