Measure TCS3200 frequency outputs under controlled lighting, calibrate against references, and send results through an HC-05 serial link.
An overview of the ESP32's features — dual-core processor, WiFi, and dual-mode Bluetooth — and how to program it easily via Arduino IDE.
A comparison of WiFi, Bluetooth, ZigBee, GSM, and RF by range, speed, and power consumption, to help you pick the right wireless method.
Use a ready-made phone voice-recognition app with an HC-06 Bluetooth module to turn LEDs on and off with simple voice commands.
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