This week, I used 3 LDRs and connected them all into the NAND chips. I make one controlled another and make it output to the speaker.
At first, when we were making it on N4, I found the sound full and beautiful, with high pitch. But then during night time the sound completely changed. Especially when we were doing the performance, I loose all my high pitch sound. I guess the main lesson drawing from this week is when working with LDRs, make sure I rehearse in a dark space, or in general carefully consider about the lighting condition.
My daytime trial:
Performance: