Hello readers
Last two years my team spent to develop IoT platform to manage energy distribution across the grid to eliminate under-loads and spikes, at the same time providing smart capabilities for customers.
Smart Energy Distribution System
Sun Heater for Swimming Pool
This spring before launching swimming pool I decided to build an automated sun water heater which should heat the water during the sunny days.
Webasto Heater Remote Control
The goal of this project is to add an ability to remotely control Webasto heater in my vehicle.
Enigma: Air conditioner protocol reverse engineering
In my previous post I created new version of IR transmitter for air conditioner but didn’t explain the process of reverse engineering chinese IR remote for air conditioner.
Continue reading “Enigma: Air conditioner protocol reverse engineering”
Infared Remote Control rev 2.0
Couple of days ago I decided to create new one IR controller for my air-conditioner and make it more professional, smaller and reliable.
I used schematics from my previous project but simplified it by removing DH22 temperature sensor and decided to improve schematics by using my base circuit with additional pull-up and pull-down resistors and capacitors for ESP chip stability.
Weather station
Just completed soldering stable version of weather station based on ESP8266, it measures temperature and humidity using DHT22 sensor and also luminosity.
Own tracks on Google Map
Current post describes implementation of OwnTracks geo data and then draw they on Google Maps.
ESP12 Main Circuit
Below you can see my main circuit which I use in my projects. Based on my experience I’d suggest that this is most of the stablest version.
Also attached original Expressif Design Guide
Pulse counter (rev 2)
Recently I built the second revision of my pulse counter to measure power consumption in my house.
The version is using plastic box and installed to DIN rail, it also has interface to re-programm ESP chip and reset button.
Car Automation project
Recently I decided upgrade my car entertainment system and make my car more smarter. I’m as usual car owner have manufacturer in-dash car system with LCD screen from VAG, but I do not use anything such as Navi, TV, radio, only line-in 3.5 jack and I’m playing my online streams from cellphone, nothing else. So, the plan of this project is to have system with next functionality:
- play online streams, my favorites are DI.FM, Soundcloud
- navigation, Google Maps for example
- manage car functionality, like door opening and auto-start engine remotely
- capture car debugging information through car data bus OBD2 protocol
- share Internet through Wi-Fi and able send/receive audio through bluetooth
I started my discovering from Raspberry PI as a hardware platform which I used in my other projects and tried to find proper software solution for Raspberry PI. I’ve found that recently Google presented platform Android Things to develop own projects for IoT devices. I took my brand new PI3 and flashed Android Things Beta image, then using ADB interface connected to device and installed Android Auto software. Unfortunately Android Auto didn’t start to work due incompatibility of versions of Google Play Services, I’ve tried manually update software but stuck due a lot of restrictions and incompatibilities in versions. Based on first negative experience I’d say that current platform is so “rare” and unfortunately I won’t use PI3 with Android.
After all I ordered Odroid C2 which has support of native Android out from the box and looks like solution is much stable.