Development Boards
Prototype electronics and build simple automation systems with the configurable inputs and outputs on these boards. Monitor both digital and analog devices, including proximity and temperature sensors, and control basic outputs, such as changing the speed of a servomotor or turning LEDs on and off. Their open-source software makes programming and troubleshooting convenient. Choose a board whose operating voltage can support the other devices you’re connecting to.
Boards with headers are good for making quick connections. Plug them in directly to breadboards, or connect them using jumper wire.
Boards without headers require making your own soldered connections. Use them for permanent or long-term installations.

No. of Configurable Inputs/Outputs | With Headers | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Manufacturer Model No. | Connection Type | Total | Digital (Input/Output) | PWM (Output) | Analog (Input) | Lg. | Wd. | Features | Each | |
Uno Wi-Fi Rev4 | USB C Bluetooth Wi-Fi | 20 | 20 | 6 | 6 | 2 1/8" | 2 3/4" | USB HID Emulation, 12 × 8 LED Matrix | 00000000 | 000000 |
Uno Minima Rev4 | USB C | 20 | 20 | 6 | 6 | 2 1/8" | 2 3/4" | USB HID Emulation | 00000000 | 00000 |
Mega 2560 Rev3 | USB B | 54 | 54 | 15 | 16 | 4" | 2 1/8" | __ | 0000000 | 00000 |

No. of Configurable Inputs/Outputs | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Manufacturer Model No. | Connection Type | Total | Digital (Input/Output) | PWM (Output) | Analog (Input) | Analog (Output) | Lg. | Wd. | Features | Each | |
With Headers | |||||||||||
MKR Zero | USB Micro B | 22 | 22 | 12 | 7 | 1 | 2 3/8" | 1" | __ | 0000000 | 000000 |
MKR Wi-Fi 1010 | USB Micro B Bluetooth Wi-Fi | 22 | 22 | 13 | 7 | 1 | 2 7/16" | 1" | __ | 0000000 | 00000 |
MKR NB 1500 | USB Micro B | 22 | 22 | 13 | 7 | 1 | 2 11/16" | 1" | LTE CAT M1/NB1 Class 3 Compatibility, SIM Card Slot | 0000000 | 00000 |
MKR Vidor 4000 | USB Micro B Bluetooth Wi-Fi HDMI MIPI | 22 | 22 | 13 | 7 | 1 | 3 1/4" | 1" | FPGA | 0000000 | 000000 |
Nano 33 IoT | USB Micro B Bluetooth Wi-Fi | 22 | 22 | 11 | 8 | 1 | 1 3/4" | 3/4" | 6-axis IMU | 0000000 | 00000 |
Nano 33 BLE | USB Micro B Bluetooth | 22 | 22 | 14 | 8 | __ | 1 3/4" | 3/4" | 9-axis IMU | 0000000 | 00000 |
Nano 33 BLE Sense Rev2 | USB Micro B Bluetooth | 22 | 22 | 14 | 8 | __ | 1 3/4" | 3/4" | 9-axis IMU, Humidity/Temperature Sensor, Barometric Sensor, Proximity/Light Sensor, Embedded Artificial Intelligence, Microphone | 0000000 | 00000 |
Without Headers | |||||||||||
Nano 33 IoT | USB Micro B Bluetooth Wi-Fi | 22 | 22 | 11 | 8 | 1 | 1 3/4" | 3/4" | 6-axis IMU | 0000000 | 00000 |
Nano 33 BLE | USB Micro B Bluetooth | 22 | 22 | 14 | 8 | __ | 1 3/4" | 3/4" | 9-axis IMU | 0000000 | 00000 |
Nano 33 BLE Sense Rev2 | USB Micro B Bluetooth | 22 | 22 | 14 | 8 | __ | 1 3/4" | 3/4" | 9-axis IMU, Humidity/Temperature Sensor, Barometric Sensor, Proximity/Light Sensor, Embedded Artificial Intelligence, Microphone | 0000000 | 00000 |