Name: 1-Wire I2C Click Board™
Brand: Mikroelektronika d.o.o.
SKU: MIKROE-2750
Price: 32.95 EUR
Availability: InStock

Mikroelektronika d.o.o. (MikroE)

More about Mikroelektronika d.o.o. (MikroE)

MikroElektronika (MikroE) is a Serbian company specializing in embedded development tools and solutions. Founded in 2001, MikroE is known for its innovative products like Click boards, mikroBUS standard, and NECTO Studio IDE. The company focuses on standardization and time-saving in the embedded industry, offering a wide range of development boards, compilers, and programming tools for various microcontroller architectures.

mikroBUS and Click boards: plug-in modules for embedded designs

mikroBUS is MikroElektronika's (MIKROE) standard socket for add-on boards, and the Click board is the module that plugs into it. A mikroBUS socket carries SPI, I2C, UART, analogue, PWM, interrupt and reset lines plus 3.3 V and 5 V rails on a pair of 1x8 headers, so one sensor, transceiver or driver board can move between development boards without rewiring. MIKROE also supplies the development boards, the mikroProg and CODEGRIP programmers and debuggers, and the NECTO Studio IDE with the mikroSDK libraries.

How a mikroBUS socket works

The mikroBUS socket is a pair of 1x8 female headers on a 100 mil pitch, so it also suits breadboards. The left header carries AN, RST, the four SPI lines (CS, SCK, MISO, MOSI), +3.3 V and GND. The right header carries PWM, INT, the UART pair (RX, TX), the I2C pair (SCL, SDA), +5 V and GND. Every Click board uses the same positions, which is why a host board with a mikroBUS socket can run any Click board that its firmware supports.

Sixteen pins, the same positions on every mikroBUS socket and every Click board.

Click boards and mikroBUS adapters

A Click board is a small add-on module, typically one sensor, transceiver or driver IC on a mikroBUS footprint. Which of the socket's lines a given board actually uses depends on its chip: the Temp&Hum Click uses I2C with a 3.3 V ST HTS221 sensor, while the CAN SPI 5V Click uses SPI with an MCP2551 CAN transceiver and needs 5 V. Always check the supply voltage on the board's page against the host socket.

Hosts without a native mikroBUS socket can be given one. The Arduino UNO Click Shield adds two mikroBUS sockets to an Arduino UNO, the Raspberry Pi 3 Click Shield does the same for a Raspberry Pi 3, and the mikroBUS Shuttle extends a socket on a flat cable. The Click Board Analyzer plugs in between a Click board and its host to show pin logic states (up to 4 MHz sampling) and voltages over USB.

Browse by function: Sensor Click boards, Wireless Interface Click boards, CAN Bus Click boards, Motor Control Click boards, Power Management Click boards, or the full Click boards collection.

Development boards, programmers and software working together

A typical MIKROE setup has four parts: NECTO Studio on the PC, a programmer/debugger, a development board with the target MCU, and Click boards in its mikroBUS sockets. The mikroSDK libraries give each Click board a driver, so the same application code can be rebuilt for a different MCU.

Write and debug code on the PC, flash it through the programmer, and add hardware by plugging Click boards into the sockets.

MIKROE products at a glance

Model	Role	Target	Notes
Clicker Board 2 for STM32	Development board	STM32F407VGT6 (Cortex-M4)	Two mikroBUS sockets, 1 MB flash, USB HID bootloader, LiPo charging
UNI-DS v6 Development Board	Development board	PIC, dsPIC, AVR, 8051, ARM, PSoC (8 mikroBoards)	Integrated programmers, 72 buttons and 72 LEDs, 128x64 graphic LCD connector
MikroProg for STM32	Programmer and debugger	STM32 Cortex-M3 and Cortex-M4	USB, JTAG and SWD via IDC10, hardware debugging
MikroProg for PIC, dsPIC and PIC32	Programmer and debugger	PIC, dsPIC, PIC32	See product page
MikroProg for AVR	Programmer and debugger	AVR	See product page
MikroProg for Tiva	Programmer and debugger	TI Tiva	See product page
Arduino UNO Click Shield	mikroBUS adapter	Arduino UNO and compatibles	Two mikroBUS sockets, bootload switch

More host boards are in the Clicker boards collection, and further programmer variants include MikroProg for 8051 and MikroProg for PSoC 5LP. The MikroProg to ST-Link v2 Adapter is also available for boards that use an ST-Link connector.

Programmers and debuggers

MIKROE sells two programmer families: the mikroProg series and CODEGRIP. Each mikroProg is aimed at one MCU family; the STM32 version, for example, is driven by mikroProg Suite for ARM. CODEGRIP is a newer programmer and hardware debugger that supports ARM Cortex-M, RISC-V, PIC, dsPIC, PIC32 and AVR, connects over USB-C or Wi-Fi, and is available as a standalone unit or an on-board module. CODEGRIP units are not listed in this catalogue at present; ask our engineers if you need one.

Standards and key specifications

Socket: pair of 1x8 female headers, 100 mil pitch.
Left header, pins 1 to 8: AN, RST, CS, SCK, MISO, MOSI, +3.3 V, GND.
Right header, pins 1 to 8: PWM, INT, RX, TX, SCL, SDA, +5 V, GND.
Buses: one SPI, one I2C and one UART per socket, plus one analogue, one PWM, one interrupt and one reset line.
Power: 3.3 V and 5 V rails; each Click board states which it needs.

NECTO Studio and mikroSDK

NECTO Studio is MIKROE's IDE for Windows, macOS and Linux, covering ARM, RISC-V, PIC, dsPIC, PIC32 and AVR with GCC, Clang and mikroC AI compilers.

mikroSDK: an open-source, modular framework that abstracts the hardware so application code can be reused across MCU families.
Package Manager: fetches libraries, board definitions and examples.
NECTO Designer: visual GUI builder that generates LVGL code.
Licensing: students and academics get all features free; commercial use is by subscription. Check MIKROE for current terms.

Typical applications

Prototyping sensor, wireless and motor-control designs by swapping Click boards on one host
Adding CAN, RS-485 or other interfaces to a development board without a custom PCB (CAN SPI 5V Click)
Teaching embedded programming across PIC, AVR, ARM and 8051 on a single board (UNI-DS v6)
Bringing mikroBUS to Arduino and Raspberry Pi projects with the Click shields

Frequently asked questions

What is the mikroBUS pinout?

mikroBUS has two 1x8 headers. The left carries AN, RST, CS, SCK, MISO, MOSI, +3.3 V and GND; the right carries PWM, INT, RX, TX, SCL, SDA, +5 V and GND. Every Click board uses the same positions.

Will any Click board work on any mikroBUS socket?

Electrically the sockets match, but you must check the supply voltage the board needs (3.3 V or 5 V) and that firmware or a mikroSDK driver exists for your MCU. For example, the CAN SPI 5V Click needs 5 V, while the Temp&Hum Click runs at 3.3 V.

How do I add mikroBUS to an Arduino or Raspberry Pi?

Use a Click shield: the Arduino UNO Click Shield gives two sockets on an Arduino UNO, and the Raspberry Pi 3 Click Shield does the same for a Raspberry Pi 3.

Which programmer do I need?

mikroProg variants are made per MCU family, such as MikroProg for STM32 or MikroProg for PIC, dsPIC and PIC32. Choose the one that matches your target MCU. CODEGRIP covers several architectures in one unit.

Do I have to use NECTO Studio?

No. Click boards are ordinary hardware and can be driven from other toolchains, but NECTO Studio with mikroSDK provides ready-made Click board drivers and examples.

Can I debug a Click board while it is plugged in?

Yes. The Click Board Analyzer sits between the Click board and the host socket and shows pin states and voltages over USB.

Source: MIKROE product documentation and the mikroBUS standard specification. Need help choosing a model? Ask our engineers.

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1-Wire I2C Click Board™

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10x10 RGB Click Board™

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16x12 G Click Board™

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16x9 G Click Board™

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2 x 30W Amp Click Board™

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