Difference between revisions of "Turbidity meter"
From (art)scienceblr
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1. LDR | 1. LDR | ||
| + | |||
2. Laser Pointer | 2. Laser Pointer | ||
| + | |||
3. 33k Resistor | 3. 33k Resistor | ||
| − | 3. Dark tube/Box (We used a black pvc pipe) | + | |
| + | 3. Dark tube/Box (We used a black pvc pipe) | ||
| + | |||
4. Arduino + usb cable | 4. Arduino + usb cable | ||
| + | |||
5. Wires | 5. Wires | ||
| + | |||
6. test tubes | 6. test tubes | ||
Tools - | Tools - | ||
| + | |||
1. Soldering Iron + Solder | 1. Soldering Iron + Solder | ||
| + | |||
2. Glue Gun | 2. Glue Gun | ||
| + | |||
3. wire cutter/stripper | 3. wire cutter/stripper | ||
1. Connect one leg of the LDR ground on the arduino . The other leg of the LDR will go to analog input 0 (Any of the analog inputs can be used. | 1. Connect one leg of the LDR ground on the arduino . The other leg of the LDR will go to analog input 0 (Any of the analog inputs can be used. | ||
| + | |||
2. Connect one leg of the resistor to +5V on the arduino. The other leg of the resistor will go to the same analog input as the LDR (A0 in this case). This forms a [https://en.wikipedia.org/wiki/Voltage_divider| potential divider.] | 2. Connect one leg of the resistor to +5V on the arduino. The other leg of the resistor will go to the same analog input as the LDR (A0 in this case). This forms a [https://en.wikipedia.org/wiki/Voltage_divider| potential divider.] | ||
Revision as of 12:09, 4 April 2016
This is a simple Turbidity meter with a Light Dependent Resistor and a Laser
Materials needed -
1. LDR
2. Laser Pointer
3. 33k Resistor
3. Dark tube/Box (We used a black pvc pipe)
4. Arduino + usb cable
5. Wires
6. test tubes
Tools -
1. Soldering Iron + Solder
2. Glue Gun
3. wire cutter/stripper
1. Connect one leg of the LDR ground on the arduino . The other leg of the LDR will go to analog input 0 (Any of the analog inputs can be used.
2. Connect one leg of the resistor to +5V on the arduino. The other leg of the resistor will go to the same analog input as the LDR (A0 in this case). This forms a potential divider.
