Embedded Files
Two Devices Talking to Each Other Through a Blinking LED!!💡
We are inspired by Light Fidelity (Li-Fi), a high-speed, wireless communication technology that uses light from LED bulbs to transmit data instead of radio waves. The motivation for this is to provide communication in places with congested electromagnetic interference (e.g. hospitals) and hazardous environments.
Compute: ESP32-S2
Power: LDO
Sensing: Photodiode
Actuation: LED & OLED
Analog Processing (TIA); …
Transmitter Board's schematic here. CP2104 (U1) turns USB's signal into UART, which will then be sent through the actuator LED (D2).
Features:
4-layer board! (Analog - GND - VDD - Digital)
Adjustable comparator threshold
Transimpedance Amplifier for analog processing
Final Configuration
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