GitHub: https://github.com/debsahu/TheButton Things we want to achieve: Low on power consumtion: ESP8266 is OFF when the button is not pressed debsahu/ESP_External_Interrupt Portable: Uses 18650 battery, lasts years Talks to Home Assistant: debsahu/HARestAPI
The Button: Amazon “Dash” type button to communicate to Home Assistant Read More »
Idea: Control components on Home Assistant directly from ESP8266. Implementation: Develop an Arduino Library that can be used in various projects without the requirement of setup of a MQTT sensor + automation on HA. This uses RESTful API commands (link). Arduino HARestAPI Library: https://github.com/debsahu/HARestAPI
HARestAPI: Control Home Assistant directly using ESP8266 Read More »
Idea: Did you ever want to use ESP8266 to communicate to Home Assistant directly? Implementation: Here we use a color sensor to read colors and change a RGB light in Home Assistant to the color observed. Arduino Code: Link RGB Lights connected to Home Assistant McLighting: https://github.com/toblum/McLighting
ESP8266 based Color Sensor talking to Home Assistant via RestAPI Read More »
Idea: Use ESP8266 to talk to Twitter Get User Data or Tweet or Search Twitter Display the data on a Dot-Matrix display Implementation: I created an Arduino library to talk to Twitter using its Web API made for ESP8266. There are other approaches like using a bearer token arduino-twitter-api, but comes with limitations in terms of not being
Talking to Twitter using TwitterWebAPI for ESP8266 Read More »
Idea: If there is smoke, smoke alarm detects it ESP8266 detects this digital signal from smoke detector, connects to WiFi and sends data to a MQTT server Esp8266 turns itself OFF Implementation: Try to find where on the smoke detector is the 3.3V digital signal when it detects smoke Lets look at Kiddie RF-SM-DC Third
Internet Connected Smoke Alarm Read More »
Idea: Keep ESP8266 on OFF mode as default External 3.3V signal (can be short or long) arrives and turns ON ESP8266 ESP8266 wakes up and keeps itself awake until a task is perfomed Send MQTT data to server Put ESP8266 back to power OFF state Implementation: ESP8266 is in OFF state, GPIO0 is low 3.3V signal
Extreme Power Saving of ESP8266 using External Interupt Read More »
Wouldn’t it be nice to know if your dog’s water bowl is empty? Let us build a sensor that measures the water level every 5 minutes. This value is sent to MQTT server and Home Assistant automation takes care of the rest. This sensor connects to MQTT and Home Assistant. See dogsensor.yaml for adding this
Internet Connected Water Bowl Sensor Read More »
Let’s say that you don’t have your smartphone around and someone mentions you on twitter. Wouldn’t it be nice to have a display that automatically reads your twitter mentions and show it on a scrolling display? So let’s build a internet controlled (IoT) dot-matrix display that does this for us using an ESP8266. The plan
Twitter Mentions on a Dot-Matrix Display Read More »
Building electronics is one of my hobbies and I have in the recent year developed this skill to a point that I can help inspire others to make these things that make our day to day activities easier. Activities as simple as turning on and off lights using the internet (or using voice via siri/alexa/google
Internet of Things (IoT) Read More »
