16x9 G click
PID: MIKROE-2520
16x9 G click
contains a
green LED matrix
and the IS31FL3731 audio modulated matrix LED
driver. The dimension of the LED matrix is 16x9. Each LED can be controlled individually –
both for on/off control and light intensity. The click is designed to run on either 3.3V or 5V
power supply. It communicates with the target microcontroller over I2C interface and the
following mikroBUS™ pins: PWM, INT, CS.
The IS31FL3731 matrix driver
The IS31FL3731 is a compact LED driver for
144 single LEDs.
The driver has three operating
modes, Picture Mode, Auto Frame Play Mode and Audio Frame Play Mode:
Picture Mode
— the driver can store up to 8 frames. In Picture Mode you can show one of these
frames at a time.
Auto Frame Play Mode
— In this mode you can automatically play the 8 frames in order.
Audio Frame Play Mode
—You can play the 8 frames to the rhythm of the music of your
choice. The displayed LED frames can be modulated with audio signal intensity. The driver
plays the first frame when the value is the smallest and plays the eighth frame when the value is
the biggest.
For more information about the different modes, see the LED driver datasheet.
Audio signal
- The LED frames can be modulated with the intensity of the audio signal.
Light intensity
- It is possible to set the intensity of each frame individually, and to use the
intensity setting of frame 1 for all other frames.
Key features
16x9 LED matrix
144 single LEDs
IS31FL3731 matrix LED driver
o
8 frames memory for animations
o
Picture mode and animation mode
o
LED frames displayed can be modulated with audio signal intensity
o
LED light intensity can be modulated with audio signal intensity
o
Individual blink control
I2C interface
3.3V or 5V power supply
SPECIFICATION
Product Type
Applications
On-board
modules
Key Features
LED Matrix
LED display for various hand-held devices, home appliances, IoT devices, etc.
IS31FL3731 matrix LED driver
16x9 LED matrix, 144 single LEDs, 8 frames memory for animations,
Individual blink control, Auto Frame Play Mode, Audio Frame Play Mode
Key Benefits
light intensity control, Audio Frame Play Mode
Interface
I2C
Power Supply 3.3V or 5V
Compatibility mikroBUS
Click board size M (42.9 x 25.4 mm)
Pinout diagram
This table shows how the pinout on
16x9 G click
corresponds to the pinout on the mikroBUS™
socket (the latter shown in the two middle columns).
Notes
Pin
mikroBUS
tm
Pin
Notes
Not connected NC
1
AN
Not connected NC
2
RST
Standby
SDB 3
CS
Not connected NC
4
SCK
PWM
16 IN
PWM Input
INT
15 INT
Interrupt
RX
14
NC Not connected
TX
13
NC Not connected
Not connected NC
5
MISO SCL
12 SCL
I2C clock
Not connected NC
6
MOSI SDA
11 SDA
I2C data
Power supply
+3.3V 7
3.3V
5V
10 +5V
Power supply
Ground
GND 8
GND GND
9 GND
Ground
Jumper and Settings
This table shows the onboard jumpers and additional settings.
Designator Name
Default
Position
Left
Default
Option
3V3
Description
Power Supply Voltage Selection 3.3V/5V, left position
3.3V, right position 5V
The last two bits of the I2C address
JP1
PWR.SEL.
ADDR
SEL
JP2
Left
0
Programming
The Library provide access to the function registers of the driver, and basic graphic manipulation
of each frame.
Code snippet
The code snippet shows how to draw one frame and display it.
01
void
main()
02
{
03
system_init();
04
05
// Hardware power on.
06
click_16x9_shutdown_hw(false);
07
// Software shutdown mode.
08
click_16x9_shutdown_sw(true);
09
10
// Turn on all LED's in frame 1, and draw circle.
11
click_16x9_begin_frame(FRAME_1);
12
{
13
click_16x9_control_all(CTRL_LED,
true);
14
click_16x9_fill_screen(0x00);
15
click_16x9_circle(x,
y, radius, pwm);
16
}
17
click_16x9_end_frame();
18
19
// Display frame 1.
20
click_16x9_func_reg(REG_PICTURE_DISPLAY,
0);
21
22
// Software normal operation mode.
23
click_16x9_shutdown_sw(false);
24
25
while
(1);
26
}
https://shop.mikroe.com/click/display/16x9-g 2/24/2017
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