RGB LED Screen Daisy Chaining
The LED Screens can be chained together to create a larger screen.
Daisy Chaining
Wiring
Connect the dout(male)of screen 1 to the din(female) of screen 2
It is not recommended to connect 2 screens of different types as the calculations may become difficult.
Coding Tutorial
Load the NeoPixel extension.
Initialize the screen with the total number of LEDs(256x2=512).
Pixels 0-255 and 256-511 control screen 1 and screen 2 respectively.
Daisy Chaining and Matrices
Daisy Chaining can be used alongside matrices. We initialize a matrix with the width of 1 screen.
Using 2 16x16 screens, a 16x32 matrix can be created.
Lighting up the first 2 LEDs of each screen.
Y=0 and Y=16 refer to the first rows of each screen.
When rotation is 0 or 2, the 2nd screen extends the Y axis. When rotation is 1, the 2nd screen extends the X axis.
Daisy Chaining and Animations
Please reference “16x16 RGB LED Screen - Dynamic Effects Tutorial” for details on how to create animations.
16x16 RGB LED Screen - Dynamic Effects Tutorial
The logic is similar to this tutorial, we just change Y to control the 2nd screen.
Example: We add 16 to Y to control the animation on the 2nd screen.
The order of frames may require changing if there are multiple frames.
Example: When playing an animation with 2 frames on a daisy chain with 2 screens, the order of frames in screen 1 is frame 1-> frame 2. but the order of frames in screen 2 is frame 2-> frame 1.
Extension Version and Updates
There may be updates to extensions periodically, please refer to the following link to update/downgrade your extension.
FAQ
Q: Why is red the only colour lit up when I try to use different colours?
A: There is not enough power.
Solution: Reduce brightness or turn on the power on the Robotbit, or connect to a USB power.
Precautions
Do not connect a power supply with a voltage higher than 5V.
Connect to a USB power supply when for prolonged use.
Lower the brighness when a lot of LEDs are lit.
This product is suitable for users aged over 14, children aged 8-14 need to be under the supervision of an adult when using this product.
Please refer to Kittenbot’s official guidelines before using, wiring must follow the guidelines, do not use a high power servo or motor when using this product.
To avoid short circuiting, do not put this product on conductive surfaces such as metal.
To avoid short circuiting, do not put this product in water.
Do not touch the exposed wires with bare hands.