The world’s fastest growing add-on board standard

… endorsed by major vendors and used by countless other companies, startups, R&D engineers and hobbyists.

mikroBUS™ socket

Smallest number of pins — maximum expandability.

mikroBUS Socket Pinout

The mikroBUS™ socket comprises a pair of 1×8 female headers with a proprietary pin configuration and silkscreen markings. The pinout (always laid out in the same order) consists of three groups of communications pins (SPI, UART and I2C), six additional pins (PWM, Interrupt, Analog input, Reset and Chip select), and two power groups (+3.3V and 5V).

click boards™

No soldering, no wires, no time-wasting.

mikroBUS click boards

The large number of click boards™ is the key value of the mikroBUS™ standard.

  • Each one carries a single IC, module or circuit that brings a specific functionality to a target mainboard

  • Hundreds of boards with all types of sensors and transceivers are available

  • All clicks have a standardized size, shape, and mikroBUS™ connector

mikroBUS socket Vacant And With click board

A vacant mikroBUS™ socket, and a click board plugged into a mikroBUS™ socket next to it.

The spacing of pins on the mikroBUS™ connector is compatible with standard (100 mil pitch) breadboards.

click Board In Breadboard

Microchip Technologies, NXP Semiconductors, and many other vendors are putting mikroBUS™ sockets onto their boards.

From educational kits for high-schoolers to single board computers running Linux. These vendors decided to adopt our standard because it is:

  • The simplest way to add maximum connectivity.
  • Easy to implement because of its small footprint
  • A proven ecko-system with the number of compatible boards growing steadily for years

Click here to read about the many available third party boards that use the mikroBUS™ socket.

Third Party mikroBUS Boards

Chip vendors are reaching new customers through click boards™

And customers are finding the right technologies, too.

Chip vendors promote their products through evaluation kits. This approach would be much more effective if they adhered to a common standard to which potential customers are used to.

click boards™ and mikroBUS™ offer exactly that: an established standard, yet one that is accessible to engineers of all kinds who use different development tools.

Once the right clicks reach the right audience they can spawn new customers and large volume orders.

Prominent vendors already recognize the benefit. We worked with them to bring exciting new click boards™ to the market. If you think there is a chip or module that should have its click board, contact us.

Microchip Technology Logo
Texas Instruments Logo
ST Microelectronics Logo
NXP Partner Logo
Imagination Technology Community Logo
ublox Logo
Quectel Wireless Module Expert
Telit Wireless Solutions Logo
Analog Devices Logo
EnOcean Logo
OriginGPS logo

Integrate mikroBUS™ in your design

It's an open standard

mikroBUS™ is an open standard. You can freely place mikroBUS™ sockets in your final PCB designs, as long as you clearly mark them on the silkscreen with the mikroBUS™ footprint specifications:

You are also allowed to produce and sell your own mikroBUS™ add-on boards as well, as long as you adhere to the pre-defined specifications. The only restriction is that you are not allowed to call your board a “click board” because the name is a trademark of MikroElektronika. Let us know if you make something, send us an Email to

mikroBUS Altium Window