Click Logger

How does it work?

Click Logger is a versatile tool for Click board™ development, combining USB connectivity and UART data logging into a single compact board. It serves two primary functions:

• mikroBUS™ to USB Adapter – Enables seamless communication with mikroBUS™ modules (Click boards) via USB using the FT4232H chip, ensuring reliable serial-to-USB conversion and real-time data access.
• UART Logger – Captures and logs UART data from the mikroBUS™ TX line onto a microSD card using an ATmega328P microcontroller. A LOG LED indicator provides visual feedback on logging activity, while the MCU can be reprogrammed via an ICSP connector for custom firmware updates.

Key features

• Power monitoring – Integrated INA219BIDR enables real-time measurement of voltage, current, and power consumption.
• Battery support – Built-in Li-Po charging (MC34671 IC) for standalone operation in field applications.
• GPIO control – Four-position DIP switch used for default voltage level control. The switch sets the initial state of the CS, RST, PWM, and INT lines, while the six control buttons (AN, RST, CS, PWM, INT, LOG) allow dynamic state changes during operation, giving developers enhanced flexibility for signal management.
• u-blox compatibility – Direct support for u-blox modules, with USB-based integration for real-time tracking using the u-center application.

With its combination of real-time monitoring, data logging, and flexible connectivity, Click Logger is an essential tool for engineers and developers working with mikroBUS™-based hardware.

Specifications

Pinout diagram

This table shows how the pinout on Click Logger corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns).

Notes	Pin					Pin	Notes
Analog Output	AN	1	AN	PWM	16	PWM	PWM Signal
Reset / ID SEL	RST	2	RST	INT	15	INT	Interrupt
SPI Select / ID COMM	CS	3	CS	RX	14	TX	UART TX
SPI Clock	SCK	4	SCK	TX	13	RX	UART RX
SPI Data OUT	SDO	5	MISO	SCL	12	SCL	I2C Clock
SPI Data IN	SDI	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

Onboard settings and indicators

Click Logger electrical specifications

Software Support

MIKROE does not currently provide software support for Click Logger board in the form of libraries, functions, or example code. For additional information or assistance, we recommend reaching out to u-blox. Find more details at the following resources:

• For general inquiries and technical support materials, visit the u-blox Contact Us page, where you can submit a support ticket for further assistance.
• Additional support can be found on the u-blox official Support Community page, where you can find answers, ask questions and connect with community of u-blox users from around the world.