Board layout
For reference, the board layout is as shown (viewed from the top):
The connections are:
Connector
Description
POWER
(Barrel Jack)
External power can be applied to the board with this connector using the
5.5mm jack.
The absolute maximum input voltage is 16V. Any higher voltage than this will
damage the board within a few seconds!
The input current ranges from 300mA to 500mA depending on the tubes and
the number of LEDs patterns you are using.
POWER
(Header)
You can supply input power using the header instead of the barrel jack.
GND:
The negative side of the input supply
VIN:
The positive side of the input supply
BTN1
Control Button 1 – Please see the user manual for full details of what the
switch does.
BTN2
Control Button 2 – Please see the user manual for full details of what the
switch does.
FRONT
PANEL
These are the controls that go on the front panel: The input button and the
Light Dependent Resistor to detect ambient light.
GND:
The “ground”. One lead of the button and one lead of the LDR are
connected to this.
DLS:
“Dimming LDR Sense”: The other lead of the LDR is connected to this
BTN1:
The other lead of the button is connected to this input
BTN2:
The other lead of the button is connected to this input
PIR:
The PIR sense lead can be connected here if you want to use the PIR
sensor. You need to use a standard 5V PIR module. A 3.3V module will not
work reliably.
5V:
Regulated 5V output to drive auxiliary circuitry. This output can only
provide 100mA, so please do not try to run extensive circuitry from it.
I2C
Optional connection for I2C. If you want to modify the software to use external
sensors or modules, this header provides a standard 5V I2C interface. module.
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