This repository is a advanced version of the basic esphome configuration from Rynald Alden. Its tailort for use with a Jura Impressa F7 coffeemachine. In this repository you will find a lot of additions for this Jura Impressa series. This way we managed to decipher more codes from the UART messages of the jura.
The following counters are now available:
- Single espresso
- Double espresso
- Single Coffee
- Double coffee
- Single cappucino (*)
- Single Ristretto (*)
- Double Ristretto (*)
- Brew-unit movements (*)
- Cleanings performed (*)
- Descalings performed (*)
- num of coffee grounds in tray (*)
(*) all these sensors are new compared to the original esphome interaction by ryanalden
| There is an extensive WIKI on this GitHub in development where the information below is described in more detail and better! |
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DISCLAIMER: By proceeding with the actions described below, you agree to assume full risk. The author of this documentation hereby expressly disclaims any liability for damage, loss of data, or other problems that may arise as a result of following these instructions. These actions may also void the product's manufacturer's warranty.
Hardware is a Wemos D1 Mini connected to the 7-pin Jura service port via a 3.3V<->5V logic level converter. The D1 mini is powered from the Jura.
The first pin is on the right and number 8 is on the left You need:
| pin-out | function |
|---|---|
| (2) | TX |
| (3) | Ground |
| (4) | RX |
| (6) | 5 Volt |
If you have difficulty, try swapping the TX/RX pins. Be careful to place the logic leveler otherwise you can damage the Jura!
In my scripts you will also find a piece of extra hardware, namely a One-wire temperature sensor (Dallas 18B), this measures my kitchen temperature. If you do not have this, remove it from my scripts at the marked points.
I have not deciphered the protocol myself, I have based this mainly on Ryan's earlier (collected) work. But the file jura_coffee.h contains all the C++ logic to understand the Jura commands and read the EEPROM. I tried to keep the file as readable as possible. The most important parts are the counts[0] = parseHexSubstring(data, 3, 7); // Single espresso parts (line 125+), those decode the string from the Jura.
There a still bits un decoded! the are noted as unknown_fields[*] in the script!
There is a good documentation reference at the Jura Proto project
Here is a example of a home-assistant dashboard that you can make with the provided functions and counters:
Here your can find an example YAML file from my home-assistant implementation.
This is a version 2 dashboard example of the integrated webserver from the ESPhome:
Orginal sourcecode is based on:
