Aurdino UNO: https://www.ebay.com/itm/ATmega328P-CH340G-UNO-R3-Board-USB-Cable-Compatible-with-Arduino-L2/173019953288?epid=1184299414&hash=item2848caf888%3Ag%3ANWAAAOSwmwtaKPhG&_sacat=0&_nkw=arduino+uno&_from=R40&rt=nc&_trksid=m570.l1313
	     https://www.aliexpress.com/item/1set-UNO-R3-MEGA328P-ATMEGA16U2-for-Arduino-Compatible-USB-Cable-Free-Shipping/32727299178.html?spm=2114.search0104.3.21.790d3b7fJWJIui&ws_ab_test=searchweb0_0,searchweb201602_1_10152_10151_10065_10344_10068_10342_10343_10340_10341_5012611_10696_5012511_10084_10083_10618_10304_10307_10820_10821_10302_10059_100031_10103_10624_10623_10622_10621_10620,searchweb201603_16,ppcSwitch_5&algo_expid=f445b09d-1def-4773-8c0d-2be24f38c1a1-2&algo_pvid=f445b09d-1def-4773-8c0d-2be24f38c1a1&transAbTest=ae803_1&priceBeautifyAB=0

5V relay: https://www.ebay.com/itm/5V-1-2-4-6-8-Channel-Relay-Board-Module-Optocoupler-LED-for-Arduino-PiC-ARM-AVR/401237960337?hash=item5d6ba56691%3Am%3AmzkfWblEtqpHZfTceI9Bh9A&var=670832094487&_sacat=0&_nkw=arduino+relay&_from=R40&rt=nc&_trksid=m570.l1313
 	  https://www.aliexpress.com/item/Free-Shipping-5V-low-level-trigger-One-1-Channel-Relay-Module-interface-Board-Shield-For-PIC/32708600505.html?spm=2114.search0104.3.1.b3af1f08hi1IpQ&ws_ab_test=searchweb0_0,searchweb201602_1_10152_10151_10065_10344_10068_10342_10343_10340_10341_5012611_10696_5012511_10084_10083_10618_10304_10307_10820_10821_10302_10059_100031_10103_10624_10623_10622_10621_10620,searchweb201603_16,ppcSwitch_5&algo_expid=c99d5f9c-cbf4-45c1-9701-4810e2fcb1e9-0&algo_pvid=c99d5f9c-cbf4-45c1-9701-4810e2fcb1e9&transAbTest=ae803_1&priceBeautifyAB=0

water valve: https://www.ebay.com/itm/1-2-N-C-AC220V-Magnetic-N-C-Electric-Solenoid-Valve-Water-Air-Inlet-Flow-Switch/232857620439?hash=item3637654fd7%3Ag%3A6x0AAOSwSzRZWeeB&_sacat=0&_nkw=water+valve+220v&_from=R40&rt=nc&_trksid=m570.l1313
	     https://www.aliexpress.com/item/1-2-Plastic-Solenoid-Valve-12V-24V-220V-Magnetic-Washing-Machine-Dispenser-Drinking-Water-Pneumatic-Pressure/32869216915.html?spm=2114.search0104.3.1.2ff7636dZjcC6I&ws_ab_test=searchweb0_0,searchweb201602_1_10152_10151_10065_10344_10068_10342_10343_10340_10341_5012611_10696_5012511_10084_10083_10618_10304_10307_10820_10821_10302_10059_100031_10103_10624_10623_10622_10621_10620,searchweb201603_16,ppcSwitch_5&algo_expid=ce7f9212-8924-44e5-b393-8e0788c59aca-0&algo_pvid=ce7f9212-8924-44e5-b393-8e0788c59aca&transAbTest=ae803_1&priceBeautifyAB=0

Time: https://www.epochconverter.com/        (Txxxxxxxxxx)


Example pipe: https://www.plexiglas-shop.com/GB/en/details.htm?$product=gzky5icjb4o~p&$category=5tvmaegd8pg
	      https://www.aliexpress.com/item/Plexiglass-tube-acrylic-pipe-plastic-pipe-diy-model-accessories/1950766464.html?spm=2114.search0104.3.1.4d173d5c3A5BQ9&ws_ab_test=searchweb0_0,searchweb201602_1_10152_10151_10065_10344_10068_10342_10343_10340_10341_5012611_10696_5012511_10084_10083_10618_10304_10307_10820_10821_10302_10059_100031_10103_10624_10623_10622_10621_10620,searchweb201603_16,ppcSwitch_5&algo_expid=f53e429a-0fed-4025-803d-f45a15899483-0&algo_pvid=f53e429a-0fed-4025-803d-f45a15899483&transAbTest=ae803_1&priceBeautifyAB=0