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Key components per module:

1 x 0.5” Force Sensitive Resistor $6.95

1 x WS2812 5050 RGB LED Neopixel Ring $9.95

1 x HC-SR04 Ultrasonic Sonar Distance Sensors $3.95

1 x Particle Argon Wifi Kit $36.19

The total cost of electronic components is less than $60. It is a cost-effective device compared to the products listed above on the current market.

The circuit diagram is listed below. The HC-SR04 will need an external 5V power source to function normally. The FSR sensor will need to connect with a 10k resistor in series.


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