HOW DOES IT WORK?

4x4 EGB 2 Click is based on 16 IN-PC55TBTRGB, RGB LEDs with an integrated IC from Inolux. The LED contains a signal decoding module, a data buffer, a built-in current circuit, and an RC oscillator in the same 5050 packages forming a color-mixing uniformity and consistency. The LEDs can maintain a static image, thus, making the perfect choice for developing an LED screen. Some other features that these LEDs have are built-in support for uninterrupted oscillation PWM, double data transmission, self-detection function-specific signal, three constant current drives, and more.

The 4x4 RGB 2 Click uses a two-wire synchronous transmission to communicate with the host MCU, routed to the SCK and the SDI pins of the mikroBUS™ socket. The maximum input serial data frequency is 30MHz. The data transmission goes from the host MCU through every single LED until the last one in a cascade manner, where the only limit is the number of the LEDs on this Click board™. The maximum LED output current is 20mA, while the LEDs' light intensity, depending on the current, varies from 300mcd at the lowest for Blue to 1500mcd at the highest for Green.

Although the chain could be bigger, this is not enabled on the 4x4 RGB 2 Click. The length of the chain can be limited only by the communication speed required to scan through all the LED devices in order to maintain a reasonable refresh speed.

This Click board™ can operate with either 3.3V or 5V logic voltage levels selected via the VCC SEL jumper. This way, both 3.3V and 5V capable MCUs can use the communication lines properly. However, the Click board™ comes equipped with a library containing easy-to-use functions and an example code that can be used, as a reference, for further development.

SPECIFICATIONS