非接触式洗手液非接触式洗手液-项目开发项目开发
Components and supplies
Arduino Nano R3
× 1
Arduino Relay Shield
× 1
Rotary potentiometer (generic)
× 1
Mini Alcohol Water/Gel Pump
× 1
Optical Sensor TCRT5000
× 1
Necessary tools and machines
Plastic Hose
Locksmiths
Apps and online services
Arduino IDE
About this project
Why this project
In Brazil, one of the requirements to reopen the business after social distance decisions is to provide hand
sanitizer on the entrance of stores.
Normally, this task is performed by an employee applying the sanitizer on each customer`s hands.
This project support business to comply with the legal requirements for reopening and unburden the
company due to not requiring to relocate an employee from its normal tasks to do this robotic task.
Our solution provides an automatic device to support the reopening of business and the mitigation of COVID-
19 spread.
Prototype / Testing
One of the customization required for correct operation of our solution is the possibility to configure how long
the pump will operate to spill the hand sanitizer.
To comply with this customization without software updates, the approach is to use a potentiometer that
allows the owner to configure the quantity according with the hand sanitizer density (liquid/gel) and with the
remaining quantity on the alcohol resevoir.
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