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ATSAMW25-XPRO
Evaluation Board
Figure 4: Left: Brightness at approximately 50 percent. Right: Brightness at
approximately 90 percent. (Source: Mouser Electronics)
MIC3202 HB LED Driver
Evaluation Board
• Dedicated dimming control input
• ±5% LED current accuracy
• 6V to 37V input voltage range
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• 33.8mm x 14.9mm compact footprint
• ATECC108A CryptoAuthentication™ engine
• Over-the-air updates
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PROJECT IN ACTION
Once the project is assembled, hook up the
Xplained board to a computer and fire up
a serial terminal (Figure 4). You should see
telemetry from the light sensor flowing as well
as MQTT messages to and from the Medium
One MQTT broker. If not, check to see if there
are any error messages. Some common errors
include:
1. Mixing up the line, neutral, and ground wires
feeding the power supply.
2. Reversing the V+ and V- wires on the power
supply or LED driver board.
3. Reversing the LED- and LED+ wires on the
LED light strip or the LED driver board.
4. Reversing power and ground wires to
sensors.
5. If powering the device, ensure the power
supply can deliver at least 1A of current.
6. The wireless network is not running, or SSID
or security key was entered incorrectly.
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Medium One provides IoT developers a platform
where their IoT devices can communicate and compile
data sets from across multiple IoT devices.
