About

DobbyESP is my own ESP8266 based IoT application for controlling things.

The name is inspired by Dobby, the houself from Harry Potter: serves behind the scenes, but eventually develops a life on its own.

Requirements

(mostly not yet implemented)

• [ ] enable maintainance without physical access
• [ ] Robust Wifi configuration
• [ ] OTA Updates
• [ ] Admin WebInterface
• [ ] Basic security
• [ ] MQTT for interfacing with OpenHab and crowd control
• [ ] OTA logging
• Devices + sensors
• [ ] roller blinds / sunblinds
• [ ] sprinkler with rain sensor
• [ ] anything that can be switched on or off
• [ ] Room Heating control & sensing
• make it publicly available, therefore no private acess data must be stored anywhere in version controlled files

Since the ESP8266 is a Wifi-Only system, it doesn't lend itself well to battery powered operation; this is subject to future research

Architecture

Software Stack

• Sming Framework
• [rBoot] (https://github.com/raburton/esp8266 "rBoot on github") for OTA with big flash layout
• spiffs for saving connection information. I originally intended to use the original [xlfe] (https://github.com/xlfe/spiffy "original spiffy") repo; I noticed that the changes needed for Sming are not yet there, so I used [kireefco's fork] (https://github.com/kireevco/spiffy)
• and of course Espressif's SDK, currently V1.2
• Toolchain using chocolatey from sming

Hardware

• ESP-12 and ESP-07: 4MBit/1MBit Flash, plenty of pins available, including the ADC
• Line powered: off-the-shelf USB Power modules with linear 3.3V controller
• Use Arduino relais modules to switch line: 5V form USB above come in handy, can be controlled with 3,3V from ESP
• as little as possible else

Project Layout

The TopLevel Project contains all dependencies as git submodules, plus DobbyESP's base directory.

Build targets

make ...

• clean
• all

make -f Makefile-sming.mk ...

• sming-clean

• sming-all

• rboot-stuff