Datasheet
Table Of Contents

Run the Code and Speak to TJBot
Congradulations! You are almost done! Now it's the time to have some serious fun!
Run this command from the terminal:
sudo node stt.js
You should be able to speak to TJBot and ask him to change the color of the LED.
Say "Turn the light blue" to change the light to blue. You can try other colors: yellow, green, orange, purple, magenta,
red, blue, aqua, white). You can either say "Turn the light on" or "Turn the light off"!
Enjoy! Don't forget to share a picture/video of your setup #TJBot! :-)
I LOVE this! What's next?
You can either run one of the available recipes or create your own. My favorite recipe is to connect TJBot to twitter
and have him understand emotions. Here are a set of simple things you can do with
TJBot! https://www.instructables.com/howto/tjbot/
TJBot is open source and we'd love to see what you can make with it. If you have created your own recipe, I would
love to include it as a featured recipe!
I cannot wait to see what you build with TJBot!
Why my Pi doesn't show the right color?
No worries, you can easily fix it.
You may test your LED setup to make sure the connections are correct and the library is properly installed. When
you run the test module, it should turn your LED on.
cd tjbot/bootstrap/tests
npm install
sudo node test.led.js
If the LED does not light up, you can try moving the power from 3.3 to 5 volts, by moving the jumper wire one pin to
the right (pin 2). If neither the 3.3v or 5v pins work, you will need a 1N4001 diode. The diode is inserted between the
power pin of the LED (the shorter of the two middle pins) and the 5v pin on the Raspberry Pi. Make sure the
cathode (striped end) is facing the LED. If you have problems with the setup, please refer to Adafruit's Neopixel on
Raspberry Pi guide to troubleshoot.
The LED library uses the PWM module (GPIO 18) to drive the data line of the LEDs. This conflicts with the built-in
audio hardware, which uses the same pin to drive the audio output. Depending on your configuration of Raspbian,
the sound drivers may be more aggressive in taking away control of GPIO 18 from other processes. If your LED
shows random colors instead of the expected color, use this trick to fix it.
cd tjbot/bootstrap
sudo cp tjbot-blacklist-snd.conf /etc/modprobe.d/ sudo update-initramfs -u
© Adafruit Industries https://learn.adafruit.com/tjbot-control-an-led-with-your-voice-watson-on-raspberry-pi Page 13 of 14










