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https://github.com/idoshr/smart-espresso
Smart espresso machine using a Raspberry Pi 4 and a few sensors.
https://github.com/idoshr/smart-espresso
coffee espresso raspberry-pi
Last synced: 30 days ago
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Smart espresso machine using a Raspberry Pi 4 and a few sensors.
- Host: GitHub
- URL: https://github.com/idoshr/smart-espresso
- Owner: idoshr
- Created: 2023-12-24T16:18:51.000Z (11 months ago)
- Default Branch: main
- Last Pushed: 2024-06-15T08:17:29.000Z (5 months ago)
- Last Synced: 2024-10-10T06:53:05.500Z (about 1 month ago)
- Topics: coffee, espresso, raspberry-pi
- Language: Python
- Homepage:
- Size: 3.91 MB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
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README
# Smart Espresso
_**WORK IN PROGRESS**_
This project is a work in progress.
The goal is to create a smart espresso machine using a Raspberry Pi 4 and
few sensors to monitor the pressure of the water in the boiler and in the
head of the machine.
The pressure sensors are connected to a MCP3008 ADC and the Raspberry Pi
is connected to a Home Assistant instance to monitor the pressure.
## Prerequisite
### Hardware
| Items | Description | Link | Notes |
|-------|----------------------------------------------------------------------------------------------------------------------------------|-----------------------------------|---------------------------------------------------------------------------------|
| 1 | Raspberry Pi 4 Model B 2GB RAM | | |
| 1 | MCP3008-I/P MCP3008 DIP-16 | | |
| 2 | Pneumatic Plumbing Brass Pipe Fitting Male/Female Thread 1/8" 1/4" 3/8" 1/2" BSP Tee Type Copper Fittings Water Oil Gas Adapter | | Choose the F-F-M 1/8" |
| 1 | Water Oil Fuel Gas Air Pressure Sensor Transducer (PT1/4 G1/2 G1/8) 5-12V 0.5-4.5V 0-300Bar Gauge Optional Consumer Electronics | | Choose the 0-0.5Mpa G1-8 and write to the seller that you need the 3.3v version |
| 1 | Water Oil Fuel Gas Air Pressure Sensor Transducer (PT1/4 G1/2 G1/8) 5-12V 0.5-4.5V 0-300Bar Gauge Optional Consumer Electronics | | Choose the 0-2Mpa G1-8 and write to the seller that you need the 3.3v version |
| 1 | 60 Values 1/4W 1％ Metal Film Resistors Kit 300Pcs 1 ohm - 4.7M ohm 1/4 Watt W High Precision MF Resistance Set Assortment | | |
| 1 | 530pcs/Set Polyolefin Shrinking Assorted Heat Shrink Tube Wire Cable Insulated Sleeving Tubing Set 2:1 Waterproof Pipe Sleeve | | |
| 1 | DIY Prototype Raspberry Pi Expansion Board PCB Shield Compatible for Raspberry Pi 4B/3B/3B Board For DIY Starter Projects | | |
| 1 | 1.3" OLED Display Module White/Blue Color Drive Chip SH1106 128X64 1.3 inch OLED LCD LED IIC I2C Communicate For ArduinoProjects | | Nice but too small |
### Tools
* Soldering iron
* Soldering wire
* Multimeter
* Ratchet wrench
* Screwdriver
* Teflon tape
## Wiring diagram
### How to wire the display to the Raspberry Pi
| RaspberryPi | SH1106 |
|--------------|-------------|
| Pin 6 (GND) | Pin 1 (GND) |
| Pin 1 (3.3V) | Pin 2 (VCC) |
| Pin 5 (SCL1) | Pin 3 (SCL) |
| Pin 3 (SDA1) | Pin 4 (SDA) |
### How to wire the pressure sensor to the MCP3008 and the MCP3008 to the Raspberry Pi
| RaspberryPi | MCP3008 |
|---------------|------------------|
| Pin 1 (3.3V) | Pin 16 (VDD) |
| Pin 1 (3.3V) | Pin 15 (VREF) |
| Pin 6 (GND) | Pin 14 (AGND) |
| Pin 23 (SCLK) | Pin 13 (CLK) |
| Pin 21 (MISO) | Pin 12 (DOUT) |
| Pin 19 (MOSI) | Pin 11 (DIN) |
| Pin 24 (CE0) | Pin 10 (CS/SHDN) |
| Pin 6 (GND) | Pin 9 (DGND) |
## Raspberry Pi configuration
### Enable SPI
```bash
sudo raspi-config
```
Select "Interfacing Options" and then "SPI" and enable it.
### Install the required packages
```bash
sudo apt-get install python3-dev python3-pip
pip3 install smart-esppresso
```
## Usage
### Params
| Key | Description |
|----------------|-----------------------------------------------|
| analog_devices | List of analog devices (PressureAnalogSensor) |
| client_ha | Home Assistant Client |
| display | luma oled device |
### Example
This [example](main.py) is a simple script that reads the pressure from 2 pressure sensors,
displays it on the OLED display and sync data with Home-assistant.
## References / credits / inspiration
*
*
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