Some of them are working interactively!

 

Singularity-002, IR Sensor, Analog Meter, Relay, Transistor, Capacitor, Diode, Attiny85 Chip, and Arduino Mounted on Wood Board 8 x 8”

 

Singularity-003, Relay, Transistor, Capacitor, Diode, Attiny85 Chip, and Arduino Mounted on Wood Board 8 x 8”

 

Singularity-004, Vacuum tube, Transistor, Capacitor, Diode, and Attiny85 Chip Mounted on Wood Board 8 x 8”

 

Singularity-008, Digital Meter, Relay, Transistor, Capacitor, Diode, Attiny85 Chip, and Arduino Mounted on Wood Board 8 x 8”

 

Singularity-017, Analog Meter, IR Sensor, LED, Relay, Transistor, Capacitor, Diode, and Arduino Mounted on Wood Board 8 x 8”