IR 2 Click is a compact add-on board representing a compact and easy solution for adding infrared (IR) remote control to your design. This board features the TSMP58138, a miniaturized sensor for receiving the modulated signal of QEE113 IR emitting diode from Vishay Semiconductors. This IR sensor module consists of a photodetector, pre-amplifier, and automatic gain control to surpass ambient noise with signals transmitted to it in the near-infrared range with a wavelength of 940nm. It also communicates with the target MCU via selectable GPIO lines. This Click board™ is suitable for IR repeater applications that improve your system and allow you more flexibility, sensitivity, and longer receiving range.

IR 2 Click is supported by a mikroSDK compliant library, which includes functions that simplify software development.

IR 2 Click as its foundation uses the TSMP58138, a miniaturized sensor for receiving the modulated signal of QEE113 IR emitting diode from Vishay Semiconductors. All Vishay IR receivers have the same circuit architecture consisting of a photodetector, pre-amplifier, and automatic gain control (ACG) to surpass ambient noise with signals transmitted to it with a wavelength of 940nm. This Click board™ represents a compact and easy solution for adding infrared (IR) remote control to your design suitable for IR repeater applications.

The infrared signal generates an equivalent photocurrent in the integrated photo PIN diode. The DC part of the signal is blocked in the bias circuit, and the AC part is passed to a trans impedance amplifier, followed by an automatic gain-control amplifier and an integrated bandpass filter. A comparator, an integrator, and a Schmitt Trigger stage perform the final signal conditioning. The blocks “Automatic Gain Control” and “Automatic Threshold Control” dynamically control the operating points and the threshold levels required to suppress noise from disturbance sources. The digital output signal has an active-low polarity and consists of an incoming optical burst envelope signal without the carrier frequency.

IR 2 Click communicates with the target MCU via selectable GPIO lines. The selection can be made by positioning SMD jumpers labeled as COMM SEL to an appropriate position. The default configuration of this Click board™ allows transmission via PWM pin of the mikroBUS™ socket and reception via INT pin, while the other configuration allows communication using TX and RX pins.

This Click board™ can be operated only with a 3.3V logic voltage level. The board must perform appropriate logic voltage level conversion before using MCUs with different logic levels. However, the Click board™ comes equipped with a library containing functions and an example code that can be used, as a reference, for further development.

• Interface: GPIO, PWM, UART
• Compatibility: mikroBUS™
• Dimensions: 28.6 x 25.4mm
• Input Voltage: 3.3V
• IR Wavelenght: 940nm
• Carrier Frequency: 38kHz
• Operating Temperature Range: Min. -25°C, Typ. +25°C, Max. +85°C

• Schematic
• QEE113 Datasheet
• TSMP58138 Datasheet
• mikroSDK
• LibStock