Overview

I designed WeatherBot to be a fun robot that can show a tempareture reading in an innovate and unusual way; it uses a servo to point to a value on a dial, on its stomach. It even holds the temperature sensor in its hand, with the wires going to the back of the robot where the microcontroller is housed.

Bill of Materials

Weatherbot is quite a simple robot and only needs a couple of parts:

MicroPython Code

The MicroPython code for WeatherBot is avialable at: https://www.github.com/kevinmcaleer/nodemcu_wifi

3D Printable STL files

WeatherBot is made up of two main pieces:

• body.stl - the main body
• head.stl - the Robots head

Copy both the umqttsimple.py and weatherbot.py to the Pico or ESP8266 microcontroller using Thonny. You can configure weatherbot to send its readings to an MQTT server by adding a wifi usernane and password, and MQTT server to the varibles:

ssid = 'insert your SSID here'
password = 'your password'
mqtt_server = 'your MQTT IP'

Assembly

The head piece should simply slot into the body section.

I also created a small sticker for the dial, and an eye sticker too:

• weatherbot_stickers.pdf - the eye and dial stickers

You can print out the stickers, cut them out with scissors and then glue them on the the 3d printed robot using a pva gluestick.