Hello, My name is Ethan
I am currently doing a B-TEC level 3 extended diploma in electrical/ electronic engineering at City College Coventry
I have my final project that I am doing which needs to be completed and handed in by Friday 27th May.
I am building a circuit that is an LED cube (Lamp) That turns on due to it being dark (using an LDR)
I wanted to know if anyone could see if the circuit I am doing is even feasible. or whether I am completely screwed.
https://gyazo.com/6b5bc9c539c2fb2e94a32b4d36793861 That is a screenshot of the circuit drawing its kinda bad quality and there's an image of the drawing.
I'll give information about each component below.
The circuit is powered by a 9V alkaline battery (The Breadboard picture is missing an LED)
Potentiometer = 10kΩ
R1 = 22KΩ
R2= 1KΩ
R3 R4 = 390Ω
R5 = 1kΩ (before LED above relay) - not shown on image)
R6,7,8,9,10 390Ω
C1 = 0.01µF
Q1, Q2 (BC108s)
IC1 = NE555(p) Timer
The Relay I am using is really hard to get my head around It's called a:
Zettler Electronics AZ9405-1A-9DEF PCB Mount Relay. Found at http://www.rapidonline.com/zettler-electronics-az9405-1a-9def-pcb-mount-relay-59-5567
If you could provide any information or even redrawing of the circuit it would be really helpful.
The PCB I have designed is also below. However, the relay may have to be drawn differently because it would be reversed.
On the PCB design the Potentiometer and LDR are listed as R1 and R2 respectively so the order may be different


I am currently doing a B-TEC level 3 extended diploma in electrical/ electronic engineering at City College Coventry
I have my final project that I am doing which needs to be completed and handed in by Friday 27th May.
I am building a circuit that is an LED cube (Lamp) That turns on due to it being dark (using an LDR)
I wanted to know if anyone could see if the circuit I am doing is even feasible. or whether I am completely screwed.
https://gyazo.com/6b5bc9c539c2fb2e94a32b4d36793861 That is a screenshot of the circuit drawing its kinda bad quality and there's an image of the drawing.
I'll give information about each component below.
The circuit is powered by a 9V alkaline battery (The Breadboard picture is missing an LED)
Potentiometer = 10kΩ
R1 = 22KΩ
R2= 1KΩ
R3 R4 = 390Ω
R5 = 1kΩ (before LED above relay) - not shown on image)
R6,7,8,9,10 390Ω
C1 = 0.01µF
Q1, Q2 (BC108s)
IC1 = NE555(p) Timer
The Relay I am using is really hard to get my head around It's called a:
Zettler Electronics AZ9405-1A-9DEF PCB Mount Relay. Found at http://www.rapidonline.com/zettler-electronics-az9405-1a-9def-pcb-mount-relay-59-5567
If you could provide any information or even redrawing of the circuit it would be really helpful.
The PCB I have designed is also below. However, the relay may have to be drawn differently because it would be reversed.
On the PCB design the Potentiometer and LDR are listed as R1 and R2 respectively so the order may be different


