Burning candle is relaxing and gives warm feeling. No romantic moment passes without a candle. João took a challenge to simulate candle light with a LED and small microcontroller.
The task isn’t so easy as it may look. Random flickering of LEDs won’t work here. First of all candle light is warm and waves slowly that gives a feeling of oscillating air around. This work is a second version of previous where he used single LED and MCU. This time he decided to go with two LEDs to get effect more close to candle. Program is based on PWM with random bit. Circuit isn’t hard to rebuild so be first to check out if this is close enough to candle light. Can you do better?