eFlowswitch is an application intended to combine the Raspberry Pi SBC, a Hall Effect Sensor based flow meter, and chemical dosing pumps which make use of dry circut based flowswitches.

I'll be giving a whole lot of information and tips over the course of making this application, so don't be bogus.

TODO: Impliment pulse counting to record total volume of water measured by meter. Impliment override to activate pump on demand.

LICENSE: All of the files in this project are licensed under the MIT (1987) license. A copy of the license is available in the LICENSE.txt file.

--------------------RASPBERRYPI 4 GPIO CHEATSHEET---------------------- | | | | | Sensor Power------3v---------XX XX----------5v------- Relay Power | | GPIO02-- 03 04 --5v |
| GPIO03-- 05 XX----------GND------ Relay GND | | GPIO04-- 07 08 --GPIO14 |
| Sensor GND--------GND--------XX 10 --GPIO15 |
| GPIO17-- 11 12 --GPIO18 |
| GPIO27-- 13 14 --GND |
| Sensor Signal----GPIO22------XX XX--------GPIO23----- Relay Sensor | | 3v-- 17 18 --GPIO24 | | GPIO10-- 19 20 --GND | | GPIO09-- 21 22 --GPIO25 | | GPIO11-- 23 24 --GPIO08 | | GND-- 25 26 --GPIO07 | | GPIO00-- 27 28 --GPIO01 | | GPIO05-- 29 30 --GND | | GPIO06-- 31 32 --GPIO12 | | GPIO13-- 33 34 --GND | | GPIO19-- 35 36 --GPIO16 | | GPIO26-- 37 38 --GPIO20 | | GND-- 39 40 --GPIO21 |