Communication between the worlds of humans and machines doesn’t need to be apocalyptically hard or prohibitively expensive. In this project, we are going to build a voice call operated garage door opener with an ESP8266 dev board and a relay. In order to stitch all the parts together, we will use our visual workflow builder Studio and Sync for IoT.
Gather the Garage Door Hardware
Our final flow will use an ESP8266 to link your garage door to a communications flow via Sync for IoT. Here’s what you’ll need:
- One Sonoff DEV or Wio Link board.
- One Grove Relay.
- A door actuator unit, which you might have already.
Alternatively, if you are good at soldering …
The world of Internet connected devices is exploding and there are billions of things already online. Today we’ll skip the smart thermostats and fridges and move straight to programmable droids.
Building Your Droid
We use Twilio Sync for IoT in this project, which is currently in Developer Preview. Sign up for the preview, and the team will get you on-boarded.
To keep this project entertaining, repurposable, and extensible, we are going to use the Lego Mindstorms EV3 kit, a popular platform for basic robotics builds. We’ll build an internet controlled lego robot with a real-time web dashboard and even demo touch control.
Key ingredients include:
- Lego Mindstorms EV3 kit
- A compatible WiFi USB dongle (one from this list; we used the Edimax EW-7811UN.)
- 2GB (or larger) MicroSD card to install EV3dev image
- Spare AA batteries
Assemble the Hardware
Follow Lego’s online instructions to assemble the EV3D4 droid. Once …