Hardware and software for a system that monitors flow of fluids (most likely water) and reports it to a back-end that can emit alerts based on configured preferences.
- backend - Contains the back end server where measurements will be posted
- case - 3d model of the PCB case
- esp32 - The ESP32 code that takes care of reading the sensor and posting measurements to the back-end
- frontend - The front end that can be used to manage accounts and devices
- kicad - Electronic circuit schematic
- Yellow - Device is booting
- Green, yellow and red - Device set to factory settings and waiting for configuration (See below for instructions to configure)
- Green - Device is configured and behaving correctly
- Green and yellow - Device is in the middle of sending a request to the back-end
- Red - Last request to back-end failed. This could be because configuration is incorrect, or the configured modem is unreachable
- None - This should not happen, it means something is very wrong
When the device is in factory settings (Green, yellow and red LEDs on), the ESP32 will start an access point named my-esp32-ssid. Connect to the access point using the password APassword.
Once connected, navigate to the url: sffm.ncona.com. You should get a screen like the following:
Fill the data as follows:
- Wifi Network - The name of the network the device will connect to
- Wifi Password - The password for the given SSID
- Device key - The unique identifier for this device. This ID will be validated by the backend, so it must be a valid one
After submitting the form, you should get the following confirmation screen:
The device will proceed to disable the access point and will start reading measurements from the sensor and sending them to the backend every MS_BETWEEN_POSTS.
If you need to re-configure the device, press and hold the device button for 5 seconds. After some time the green, yellow and red LEDs should all turn on.