Retro Tech & Electronics | ESP32 Automated Irrigation Control System Project - PART 2 - Water Meter Implementation @retrotechandelectronics | Uploaded February 2021 | Updated October 2024, 2 hours ago.
Were back in part two of the series continuing with the creation of a library that further supports hardware for the project and publishing it. This time it will be the water meter which uses a combination reed switch and magnet to generate a pulse for measurement.
Understanding how this works means that I don't actually need the meter but can produce my own meter emulator to make this project easier. In its simplest form, a contact with two wires should get me out the gates.
I start off with my usual library creation with a getVersion, but in addition to it, an interrupt that checks to see if the switch was closed and notifies accordingly. Dirty but effective for testing. With this working I can expand upon the arguments with more parameters to provide more context as to what it means when the switch closes as well as some functions that provide some basic readouts.
Now with a readout of both gallons and liters, touching the wires shows the increment as specified in the object creation. This number is stored in memory but now we need the final feature and that s the ability to store the information to a file. For this spiffs will be employed.
With spifffs a new function to initialize the file system is created, this is complimented with services to update that file for each event to align the mechanical value on the meter with that in the file itself. Final testing of this is done by pulling power.
To test this all out a small project board is used with a DC motor and a few batteries along with a POT to generate this signal on a reed switch with a magnet to emulate the meter for software testing.
5 Wire Motorized Ball valve
amzn.to/3Tr81yf
Buck Converter
amzn.to/3n1WZ6o
Power Transformer 120vac
amzn.to/3Jsqg1I
Water Meter
amzn.to/42mNRd1
AC/DC Converter
amzn.to/3mY6OCx
DPDT Relay
amzn.to/3lluL6d
2.4G WiFi Antenna for FPV TX Antenna with RP-SMA Female Cable Dipole Whip
amzn.to/3FvAhtI
HiLetgo ILI9341 2.8" SPI TFT LCD Display Touch Panel 240X320 with PCB 5V/3.3V STM32
amzn.to/3TqgW3e
Knurled Insert Nuts - 50Pcs M4 x 6mm Length x 6.4mm OD Female
amzn.to/3JiCObY
I2C TWI Serial LCD 2004 20x4 Display Module with I2C Interface Adapter Blue Backlight
amzn.to/3lmS6oa
HiLetgo ESP-WROOM-32 ESP32 ESP-32S Development Board
amzn.to/3Fv4KZ5
Screw Terminal Block Breakout Module Board for ESP32-DevKitC
amzn.to/3yLGr5q
2Pin Panel Mount 13mm Waterproof Power Connector IP67
amzn.to/3n1DDhH
SP13 6pin Waterproof Aviation Cable Connectors Plug Socket IP67
amzn.to/3n3cR8H
360 Degree Rotary Encoder Module KY-040 Brick Sensor
amzn.to/3ljdPgD
KUOYUH Circuit Breaker 91 Series 50VDC 125/250VAC (1A-2A) (2.0A)
amzn.to/3YQZ42l
5PCS Green AC/DC12-24V LED Indicator Lights
amzn.to/3YXiLWl
3pcs PCF8575 IO Expander Board Module I2C to 16IO IIC I2C I/O Extension
amzn.to/40f9jhZ
4pcs 2A 5V Charge Discharge Integrated Module 3.7V/4.2V PCB Board Module for 18650 Lithium Battery
amzn.to/3yTPkK1
10pcs AMS1117-3.3 DC-DC Step-Down Power Module AMS1117-3.3V Buck Module LDO 800MA
amzn.to/3n3JYti
#esp32 #platformio #arduinoide #automation #maker
Were back in part two of the series continuing with the creation of a library that further supports hardware for the project and publishing it. This time it will be the water meter which uses a combination reed switch and magnet to generate a pulse for measurement.
Understanding how this works means that I don't actually need the meter but can produce my own meter emulator to make this project easier. In its simplest form, a contact with two wires should get me out the gates.
I start off with my usual library creation with a getVersion, but in addition to it, an interrupt that checks to see if the switch was closed and notifies accordingly. Dirty but effective for testing. With this working I can expand upon the arguments with more parameters to provide more context as to what it means when the switch closes as well as some functions that provide some basic readouts.
Now with a readout of both gallons and liters, touching the wires shows the increment as specified in the object creation. This number is stored in memory but now we need the final feature and that s the ability to store the information to a file. For this spiffs will be employed.
With spifffs a new function to initialize the file system is created, this is complimented with services to update that file for each event to align the mechanical value on the meter with that in the file itself. Final testing of this is done by pulling power.
To test this all out a small project board is used with a DC motor and a few batteries along with a POT to generate this signal on a reed switch with a magnet to emulate the meter for software testing.
5 Wire Motorized Ball valve
amzn.to/3Tr81yf
Buck Converter
amzn.to/3n1WZ6o
Power Transformer 120vac
amzn.to/3Jsqg1I
Water Meter
amzn.to/42mNRd1
AC/DC Converter
amzn.to/3mY6OCx
DPDT Relay
amzn.to/3lluL6d
2.4G WiFi Antenna for FPV TX Antenna with RP-SMA Female Cable Dipole Whip
amzn.to/3FvAhtI
HiLetgo ILI9341 2.8" SPI TFT LCD Display Touch Panel 240X320 with PCB 5V/3.3V STM32
amzn.to/3TqgW3e
Knurled Insert Nuts - 50Pcs M4 x 6mm Length x 6.4mm OD Female
amzn.to/3JiCObY
I2C TWI Serial LCD 2004 20x4 Display Module with I2C Interface Adapter Blue Backlight
amzn.to/3lmS6oa
HiLetgo ESP-WROOM-32 ESP32 ESP-32S Development Board
amzn.to/3Fv4KZ5
Screw Terminal Block Breakout Module Board for ESP32-DevKitC
amzn.to/3yLGr5q
2Pin Panel Mount 13mm Waterproof Power Connector IP67
amzn.to/3n1DDhH
SP13 6pin Waterproof Aviation Cable Connectors Plug Socket IP67
amzn.to/3n3cR8H
360 Degree Rotary Encoder Module KY-040 Brick Sensor
amzn.to/3ljdPgD
KUOYUH Circuit Breaker 91 Series 50VDC 125/250VAC (1A-2A) (2.0A)
amzn.to/3YQZ42l
5PCS Green AC/DC12-24V LED Indicator Lights
amzn.to/3YXiLWl
3pcs PCF8575 IO Expander Board Module I2C to 16IO IIC I2C I/O Extension
amzn.to/40f9jhZ
4pcs 2A 5V Charge Discharge Integrated Module 3.7V/4.2V PCB Board Module for 18650 Lithium Battery
amzn.to/3yTPkK1
10pcs AMS1117-3.3 DC-DC Step-Down Power Module AMS1117-3.3V Buck Module LDO 800MA
amzn.to/3n3JYti
#esp32 #platformio #arduinoide #automation #maker
