Hi,
I am thinking about an idea to do a circuit to check who is present or not at the working room.
The idea is as follows:
There are about 40 people working in the room.
I want to use do a circuit using Pushbutton Switches A16 as in the link.
http://www.ia.omron.com/products/family/1101/
Each person will be assigned a button, therefore there will be 40 buttons.
Each day, when a person goes to the room, he/she should press his/her button and the led in
that button light up.
At the end of the day, he/she will press the button again and the led will be off.
To control the on/off of leds attached in these buttons I will use a microcontroller.
However, there will be a lot of wires and soldering work here.
Each button there will be a two wires for switch and two wires for led.
So for 40 people there will be 80 wires at least.
Could you suggest some idea to make this circuit more elegant (simple, less wires, less soldering work)?
I am thinking about an idea to do a circuit to check who is present or not at the working room.
The idea is as follows:
There are about 40 people working in the room.
I want to use do a circuit using Pushbutton Switches A16 as in the link.
http://www.ia.omron.com/products/family/1101/
Each person will be assigned a button, therefore there will be 40 buttons.
Each day, when a person goes to the room, he/she should press his/her button and the led in
that button light up.
At the end of the day, he/she will press the button again and the led will be off.
To control the on/off of leds attached in these buttons I will use a microcontroller.
However, there will be a lot of wires and soldering work here.
Each button there will be a two wires for switch and two wires for led.
So for 40 people there will be 80 wires at least.
Could you suggest some idea to make this circuit more elegant (simple, less wires, less soldering work)?