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In this video, you will see a homemade dispenser based on the pump from the previous video: • DIY Piston Pump for Di...
I got tired of trying to minimize the droplet size of the detergent when washing dishes and built an automatic liquid soap dispenser.
I assembled the control circuit on a CMOS microcircuit and several transistors. The microcircuit consumes a scanty current. A differentiating amplifier also works on microcurrents. The IR pulse that the sensor picks up is very short, and the period between pulses is quite long. The current flowing through the LED is only 2mA. The motor consumes only 40mA. All this makes the control scheme very economical.
#dispenser #sanitizer