Case study

CoffeConnect: reconstructing DeLonghi ESAM 4000 panel control

CoffeConnect investigates the DeLonghi ESAM 4000 control-panel circuit and its clock, serial-input and strobe signaling. A Raspberry Pi sampling script supports protocol inspection, while an ESP8266 prototype generates panel signals and exchanges MQTT messages with an Android app.

Targets: Protocol
Category: Independent reconstruction cases
Relationship: Independent reconstruction project
Sources reviewed: 2026-11-08

Stars: 22
Last commit: 2020-06-23
Language: Java
License (GitHub): GPL-3.0

GitHub data as of 2026-11-09

Copy as Markdown View JSON Cite

Requirements & limits

Prerequisites: DeLonghi ESAM 4000, Raspberry Pi 3B for the documented capture method, and an ESP8266 for the control prototype.
Limits: Raspberry Pi GPIO sampling misses some samples at the reported clock frequency; the source recommends a logic analyzer or oscilloscope for deeper analysis.
License: GPL-3.0 license.

Cite

BibTeX

@misc{coffeconnect-esam-4000-case,
  title = {{CoffeConnect: reconstructing DeLonghi ESAM 4000 panel control}},
  howpublished = {\url{https://github.com/mariuscrsn/smart-coffee-maker}},
  url = {https://github.com/mariuscrsn/smart-coffee-maker},
  urldate = {2026-11-08},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/coffeconnect-esam-4000-case/}}
}

Plain text

CoffeConnect: reconstructing DeLonghi ESAM 4000 panel control. https://github.com/mariuscrsn/smart-coffee-maker (accessed 2026-11-08). Awesome REA entry: https://awesomerea.org/resources/coffeconnect-esam-4000-case/

Useful? Star Awesome REA on GitHub2.4k

About this entry

The description was reviewed against primary sources.

Report an outdated entry Suggest a translation fix

Primary sources

README.md GitHub · mariuscrsn/smart-coffee-maker · Revision 8d21108
LICENSE GitHub · mariuscrsn/smart-coffee-maker · Revision 8d21108