# Espresso Water Tank Meter
## Overview
Does your espresso machine have a water reservoir that's inconvenient to check on? I do! Let's build a contactless remote water level meter that harnesses the power of "The INTERNET" to keep us informed without having to move all the cups, lift the lid, and peer into it like some kind of luddite! That's right, we'll set up an Adafruit IO feed and dashboard to spy on the water tank.
This can be done with an ESP32-S2 Feather and deep sleep mode to keep it low-power -- a 2200mAh battery should last over four months on a single charge.
Plus, it's _ultrasonic_, so you know your water is being secretly screamed at by a robot.
You'll have a beautiful dashboard to keep track of it all:
Info: Note: the 3D printed tank lid in this guide fits the ECM Synchronika and Profitec Go but you should be able to modify the file to fit other brands/makes.
## Parts
Featured
### Adafruit ESP32-S2 Feather - 4 MB Flash + 2 MB PSRAM
[Adafruit ESP32-S2 Feather - 4 MB Flash + 2 MB PSRAM](https://www.adafruit.com/product/5000)
What's Feather-shaped and has an ESP32-S2 WiFi module? What has a STEMMA QT connector for I2C devices? What has your favorite Espressif WiFi microcontroller and lots of Flash and RAM memory for your next IoT project? What will make your next IoT project flyyyyy?
That's right -...
In Stock
[Buy Now](https://www.adafruit.com/product/5000)
[Related Guides to the Product](https://learn.adafruit.com/products/5000/guides)
Featured
### Assembled Terminal Block Breakout FeatherWing for all Feathers
[Assembled Terminal Block Breakout FeatherWing for all Feathers](https://www.adafruit.com/product/2926)
The Terminal Block Breakout FeatherWing kit is like the Golden Eagle of prototyping FeatherWings (eg. majestic, powerful, good-looking). To start, you get a nice prototyping area underneath your Feather, with extra pads for ground, 3.3V and SDA/SCL. Not one to stop there, we expanded the...
In Stock
[Buy Now](https://www.adafruit.com/product/2926)
[Related Guides to the Product](https://learn.adafruit.com/products/2926/guides)
Featured
### Ultrasonic Distance Sensor - 3V or 5V - HC-SR04 compatible
[Ultrasonic Distance Sensor - 3V or 5V - HC-SR04 compatible](https://www.adafruit.com/product/4007)
If you're like me, you've dreamed of being a dolphin - smoothly gliding through the water. Using your echo-location abilities to detect tasty fish treats. Until genetic modifications catches up with our desires, we'll just have to make do with these handy **3V Ultrasonic...**
In Stock
[Buy Now](https://www.adafruit.com/product/4007)
[Related Guides to the Product](https://learn.adafruit.com/products/4007/guides)
### Silicone Cover Stranded-Core Ribbon Cable - 4 Wires 1 Meter Long
[Silicone Cover Stranded-Core Ribbon Cable - 4 Wires 1 Meter Long](https://www.adafruit.com/product/3892)
For those who are fans of our silicone-covered wires, but are always looking to _up their wiring game_. We now have **Silicone Cover Ribbon cables!** These may look _a lot_ like
In Stock
[Buy Now](https://www.adafruit.com/product/3892)
[Related Guides to the Product](https://learn.adafruit.com/products/3892/guides)
### Pre-Cut Multi-Colored Heat Shrink Pack Kit - 280 pcs
[Pre-Cut Multi-Colored Heat Shrink Pack Kit - 280 pcs](https://www.adafruit.com/product/4559)
Heat shrink is the duct tape of electronics which we guess makes this heat shrink the colorful and exciting duct tape they sell at craft stores. This pack contains heat shrink tubes in five different colors - red, blue, aqua, yellow, and the classic Adafruit black.
Each...
In Stock
[Buy Now](https://www.adafruit.com/product/4559)
[Related Guides to the Product](https://learn.adafruit.com/products/4559/guides)
### Black Nylon Machine Screw and Stand-off Set – M3 Thread
[Black Nylon Machine Screw and Stand-off Set – M3 Thread](https://www.adafruit.com/product/4685)
Totaling **420 pieces** , this **M3 Screw Set** is a must-have for your workstation. You'll have enough screws, nuts, and hex standoffs to fuel your maker tendencies for days on end! M3 size screws fit a number of Adafruit breakout/dev board...
In Stock
[Buy Now](https://www.adafruit.com/product/4685)
[Related Guides to the Product](https://learn.adafruit.com/products/4685/guides)
### Mini Magnet Feet for RGB LED Matrices (Pack of 4)
[Mini Magnet Feet for RGB LED Matrices (Pack of 4)](https://www.adafruit.com/product/4631)
Got a glorious RGB Matrix project you want to mount and display in your workspace or home? If you have one of the matrix panels listed below, you'll need a pack of these **Mini-Magnet Feet.** We got these specifically for our RGB LED Matrices, which no longer...
In Stock
[Buy Now](https://www.adafruit.com/product/4631)
[Related Guides to the Product](https://learn.adafruit.com/products/4631/guides)
- [Next Page](https://learn.adafruit.com/espresso-water-tank-meter/circuitpython.md)
## Guide Products
### Adafruit ESP32-S2 Feather - 4 MB Flash + 2 MB PSRAM
[Adafruit ESP32-S2 Feather - 4 MB Flash + 2 MB PSRAM](https://www.adafruit.com/product/5000)
What's Feather-shaped and has an ESP32-S2 WiFi module? What has a STEMMA QT connector for I2C devices? What has your favorite Espressif WiFi microcontroller and lots of Flash and RAM memory for your next IoT project? What will make your next IoT project flyyyyy?
That's right -...
In Stock
[Buy Now](https://www.adafruit.com/product/5000)
[Related Guides to the Product](https://learn.adafruit.com/products/5000/guides)
### Assembled Terminal Block Breakout FeatherWing for all Feathers
[Assembled Terminal Block Breakout FeatherWing for all Feathers](https://www.adafruit.com/product/2926)
The Terminal Block Breakout FeatherWing kit is like the Golden Eagle of prototyping FeatherWings (eg. majestic, powerful, good-looking). To start, you get a nice prototyping area underneath your Feather, with extra pads for ground, 3.3V and SDA/SCL. Not one to stop there, we expanded the...
In Stock
[Buy Now](https://www.adafruit.com/product/2926)
[Related Guides to the Product](https://learn.adafruit.com/products/2926/guides)
### Ultrasonic Distance Sensor - 3V or 5V - HC-SR04 compatible
[Ultrasonic Distance Sensor - 3V or 5V - HC-SR04 compatible](https://www.adafruit.com/product/4007)
If you're like me, you've dreamed of being a dolphin - smoothly gliding through the water. Using your echo-location abilities to detect tasty fish treats. Until genetic modifications catches up with our desires, we'll just have to make do with these handy **3V Ultrasonic...**
In Stock
[Buy Now](https://www.adafruit.com/product/4007)
[Related Guides to the Product](https://learn.adafruit.com/products/4007/guides)
### 20-pin 0.1" Female Header - White - 5 pack
[20-pin 0.1" Female Header - White - 5 pack](https://www.adafruit.com/product/4155)
Female header is like the duct tape of electronics. It's great for connecting things together, soldering to perf-boards, sockets for wires or break-away header, etc. We go through these real fast, and thought that given how handy they are, we'd offer them in a pack of five!
Each...
No Longer Stocked
[Buy Now](https://www.adafruit.com/product/4155)
[Related Guides to the Product](https://learn.adafruit.com/products/4155/guides)
### Silicone Cover Stranded-Core Ribbon Cable - 4 Wires 1 Meter Long
[Silicone Cover Stranded-Core Ribbon Cable - 4 Wires 1 Meter Long](https://www.adafruit.com/product/3892)
For those who are fans of our silicone-covered wires, but are always looking to _up their wiring game_. We now have **Silicone Cover Ribbon cables!** These may look _a lot_ like
In Stock
[Buy Now](https://www.adafruit.com/product/3892)
[Related Guides to the Product](https://learn.adafruit.com/products/3892/guides)
### Pre-Cut Multi-Colored Heat Shrink Pack Kit - 280 pcs
[Pre-Cut Multi-Colored Heat Shrink Pack Kit - 280 pcs](https://www.adafruit.com/product/4559)
Heat shrink is the duct tape of electronics which we guess makes this heat shrink the colorful and exciting duct tape they sell at craft stores. This pack contains heat shrink tubes in five different colors - red, blue, aqua, yellow, and the classic Adafruit black.
Each...
In Stock
[Buy Now](https://www.adafruit.com/product/4559)
[Related Guides to the Product](https://learn.adafruit.com/products/4559/guides)
### Black Nylon Machine Screw and Stand-off Set – M3 Thread
[Black Nylon Machine Screw and Stand-off Set – M3 Thread](https://www.adafruit.com/product/4685)
Totaling **420 pieces** , this **M3 Screw Set** is a must-have for your workstation. You'll have enough screws, nuts, and hex standoffs to fuel your maker tendencies for days on end! M3 size screws fit a number of Adafruit breakout/dev board...
In Stock
[Buy Now](https://www.adafruit.com/product/4685)
[Related Guides to the Product](https://learn.adafruit.com/products/4685/guides)
### Mini Magnet Feet for RGB LED Matrices (Pack of 4)
[Mini Magnet Feet for RGB LED Matrices (Pack of 4)](https://www.adafruit.com/product/4631)
Got a glorious RGB Matrix project you want to mount and display in your workspace or home? If you have one of the matrix panels listed below, you'll need a pack of these **Mini-Magnet Feet.** We got these specifically for our RGB LED Matrices, which no longer...
In Stock
[Buy Now](https://www.adafruit.com/product/4631)
[Related Guides to the Product](https://learn.adafruit.com/products/4631/guides)
## Related Guides
- [Adafruit ESP32-S2 Feather](https://learn.adafruit.com/adafruit-esp32-s2-feather.md)
- [FunHouse IoT Fume Extractor and Air Quality Sensor](https://learn.adafruit.com/funhouse-fume-extractor-iot-air-quality-sensor.md)
- [Planetary Gear Dreidels](https://learn.adafruit.com/planetary-gear-dreidels.md)
- [No-Code WipperSnapper Action Counter](https://learn.adafruit.com/no-code-wippersnapper-action-counter.md)
- [DIY Pico Mechanical Keyboard with Fritzing and CircuitPython](https://learn.adafruit.com/diy-pico-mechanical-keyboard-with-fritzing-circuitpython.md)
- [Close Encounters of the MIDI NeoPixel Visualizer Kind](https://learn.adafruit.com/midi-neopixel-visualizer.md)
- [Paper-Craft Crystal Gem Lantern](https://learn.adafruit.com/paper-craft-crystal-gem-lantern.md)
- [Adafruit MagTag COVID Vaccination Percent Tracker](https://learn.adafruit.com/adafruit-magtag-covid-vaccination-percent-tracker.md)
- [Motorized POV LED Display](https://learn.adafruit.com/motorized-pov-led-display.md)
- [Circle of Fifths Euclidean Synth with synthio and CircuitPython](https://learn.adafruit.com/circle-of-fifths-euclidean-synth-with-synthio-and-circuitpython.md)
- [FunHouse Parking Assistant](https://learn.adafruit.com/funhouse-parking-assistant.md)
- [NeoPixel Badge Lanyard with Bluetooth LE](https://learn.adafruit.com/bluetooth-neopixel-badge-lanyard.md)
- [Matrix Portal Sand Handles](https://learn.adafruit.com/matrix-portal-sand.md)
- [Monster Matrix with WLED](https://learn.adafruit.com/monster-matrix-with-wled.md)
- [Holiday Tree with Feather RP2040 Scorpio](https://learn.adafruit.com/holiday-tree-with-scorpio.md)
- [Pick the Perfect Plant: Battery-Powered Sun Tracking](https://learn.adafruit.com/battery-powered-sun-tracking.md)