Holiday Tree
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Smart and Festive Holiday Tree
- Overview
- Drivers
- Samples
- Projects
This is arguably the smartest holiday tree in the world! Control the LEDs in Standalone mode or connect to a host and control the tree from one of the many available language options.
The 2 boards (A and B) slide into each other, turning this into a 3D-ish module!
Key features • Stand-up Design | Resources 📄Schematics |
This very early design has these issues as the core has changed for better support:
- When using DUELink firmware:
- STAT LED does not work. The
statled()function will not work. - There is no Upstream or Downstream sockets. However, USB Upstream works.
- Buzzer is connected to pin P25, which has no PWM support in official firmware,
Beep()works however. - The button is not available! It uses a reserved pin.
- STAT LED does not work. The
- When loading your own firmware:
- The core design has changed a lot.
- Upstream and Downstream sockets are not available. USB Upstream works.
| Function | Description |
|---|---|
PlayLED(enable) | PlayLED(1) will make the LED constantly blink, default. Use PlayLED(0) to disable playback and manually control the LEDs. |
SetLED(index, color, brightness) | Set a specific LED to a color, 0 is off. Index start from 1. Brightness max is 31 |
SetAll(color) | Set all LEDs to a specific color, use 0 to turn off. |
ShowLed() | Flush |
RndLed() | Show random color on random leds |
Beep(duration) | Play Beep with duration in milliseconds. This is blocking function. |
Init() | Initialize driver |
DVer() | This driver version. |
The Code!
Modules ship with this script preloaded. Use Console to reload or modify the drivers. Additionally, some languages, such as Python, include DUELink.Engine.Record() for recording scripts directly from the host.
_n = 26 # num of leds
_a = 4+_n*4+4 # num of led x 4, plus first and last 4 bytes
_i = 0
Dim b1[_a]
fn SetLed(i,c,l)
i = i - 1
if (i < 0)
return
end
b1[i*4+4+0] = 0xE0 | l
b1[i*4+4+1] = ((c >> 0) & 0xFF) # blue
b1[i*4+4+2] = ((c >> 8) & 0xFF) # green
b1[i*4+4+3] = ((c >> 16) & 0xFF) # red
fend
fn SetAll(c)
for i=1 to _n
SetLED(i, c, 10)
next
fend
fn ShowLed()
spiwrs(b1,0)
fend
fn RndLed()
for i=1 to _n
r=Rnd(2)*50
g=Rnd(2)*50
b=Rnd(2)*50
SetLED(i, (r << 16) | (g << 8) | (b << 0), 10)
next
ShowLed()
fend
fn PlayLed(e)
if (e = 1)
SStart("RndLed", 500, 1000)
else
SAbort("RndLed")
end
fend
fn PlayBeep(f,d)
Beep(25,f,d)
fend
fn Init()
spicfg(0,8000)
# first 4 bytes need to be 0
for _i = 0 to 3
b1[_i] = 0
next
# All led off
for _i = 1 to _n
SetLed(_i, 0, 0)
next
# last 4 bytes need to be 255
for _i = _a-4 to _a-1
b1[_i] = 0xFF
next
ShowLed()
fend
fn DVer()
return 0.1
fend
Init()
##### User Code Starts Here #####
PlayBeep(700,200)
AsIo(1) # Enable to accept commands while running
PlayLed(1) # Activate play LED scheduler
while 1
# keep the interpreter running. The scheduler will blink the LEDs
wend
- Script
- Python
- JavaScript
Use Console to modify the default driver by adding this sample.
# Append this code at the bottom of the script, right after the driver.
# You MUST keep the driver code!!
_x = 0
PlayLED(0) # Take over
SetAll(0) # All off
while 1
\_r = Rnd(50)
\_g = Rnd(50)
\_b = Rnd(50)
\_l = Rnd(31)
SetLED(\_x, \_r<<16|\_g<<8|\_b, \_l)
\_x=\_x+1
if \_x > 26
SetAll(0)
\_x=1
PlayBeep(700,100) # Play beep in 100ms
end
ShowLed()
wend
import random
duelink.Engine.Run("PlayLED(0)")
duelink.Engine.Run("SetAll(0)")
duelink.Engine.Run("PlayBeep(100)")
x = 1
while True:
r = int(random.uniform(0, 50))
g = int(random.uniform(0, 50))
b = int(random.uniform(0, 50))
l = int(random.uniform(0, 30))
c = (r << 16) | (g << 8) | b
duelink.Engine.Run(f'SetLED({x}, {c}, {l})')
x = x+1
if x > 26:
x = 1
duelink.Engine.Run("ShowLed()")
//code
Coming Soon!
Ordering Info
| Description | Part Number | Price |
|---|---|---|
| Holiday Tree | GDL-MCHOLIDAYTREE-A | $00.00 |