Engineering Tools

Results: 489
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Product
Interface Type
SparkFun Daughter Cards & OEM Boards This simple board breaks out a micro-B USB connector's VCC GND ID D- and D+ pins to a 0.1" pitch header. If you want to add the popular micro-B USB to your project but don't want to put up with soldering the tiny connector this is the board for 123In Stock
Min.: 1
Mult.: 1

Daughter Cards & OEM Boards
SparkFun Audio IC Development Tools Electret Microphone Breakout
Datasheet
47In Stock
80Expected 10/16/2026
Min.: 1
Mult.: 1

Audio IC Development Tools
SparkFun Ethernet Development Tools RJ45 Breakout
Datasheet
112In Stock
Min.: 1
Mult.: 1

Ethernet Development Tools
SparkFun Interface Development Tools FT231X Breakout Breakout
Datasheet
25In Stock
75Expected 8/10/2026
Min.: 1
Mult.: 1

Interface Development Tools
SparkFun Multiple Function Sensor Development Tools 16 Output I/O Expan B/O SX1509 53In Stock
Min.: 1
Mult.: 1

Multiple Function Sensor Development Tools
SparkFun Daughter Cards & OEM Boards Cherry MX Switch Breakout
Datasheet
123In Stock
Min.: 1
Mult.: 1

Daughter Cards & OEM Boards
SparkFun Interface Development Tools USB UART Serial Breakout CY7C65213 13In Stock
Min.: 1
Mult.: 1

Interface Development Tools Breakout Boards UART, USB
SparkFun Clock & Timer Development Tools The SparkFun RV-8803 Real Time Clock Module is a Qwiic-enabled breakout board for the RV-8803 RTC. The RV-8803 boasts some impressive features including a temperature compensated crystal providing extremely precise time-keeping low power consumption
Datasheet
61In Stock
Min.: 1
Mult.: 1
Clock & Timer Development Tools Breakout Boards I2C
SparkFun Development Boards & Kits - ARM Qwiic micro:bit Breakout w Headers 27In Stock
32Expected 8/17/2026
Min.: 1
Mult.: 1
Development Boards & Kits - ARM Breakout Boards I2C, SPI
SparkFun Switch IC Development Tools Have you ever found the perfect sensor only to discover that it has the same I2C address as another device on your bus? Or worse you need to connect eight identical sensors to one microcontroller? The SparkFun Qwiic Mux Breakout is the simple powe
Datasheet
164In Stock
Min.: 1
Mult.: 1
Switch IC Development Tools Breakout Boards I2C
SparkFun Interface Development Tools Qwiic MultiPort
Datasheet
138In Stock
Min.: 1
Mult.: 1
Interface Development Tools Evaluation Modules I2C
SparkFun Display Development Tools 7-Segment Serial Display White
Datasheet
19In Stock
Min.: 1
Mult.: 1

Display Development Tools
SparkFun LED Lighting Development Tools The PicoBuck LED Driver is an economical and easy to use driver that will allow you to control and blend three different LEDs on three different channels. By default each channel is driven at 330mA; that current can be reduced by either presenting a
Datasheet
74In Stock
Min.: 1
Mult.: 1

LED Lighting Development Tools
SparkFun Display Development Tools SparkFun Qwiic Alphanumeric Display - Red 26In Stock
Min.: 1
Mult.: 1
Display Development Tools Development Kits I2C
SparkFun Display Development Tools SparkFun Qwiic Alphanumeric Display - Blue 4In Stock
Min.: 1
Mult.: 1
Display Development Tools Development Kits I2C
SparkFun LED Lighting Development Tools The SparkFun Qwiic LED Stick features ten addressable APA102 LEDs making it easy to add full color LED control using I2C. Write to individual LEDs to display a count in binary or write to the whole strip for cool lighting effects. You can even add 66In Stock
Min.: 1
Mult.: 1
LED Lighting Development Tools Evaluation Boards
SparkFun Power Management IC Development Tools SparkFun Buck Regulator Breakout - 3.3V (AP63203) 112In Stock
153Expected 10/30/2026
Min.: 1
Mult.: 1
Power Management IC Development Tools Breakout Boards
SparkFun Display Development Tools SparkFun Qwiic Alphanumeric Display - White 6In Stock
Min.: 1
Mult.: 1
Display Development Tools I2C
SparkFun Display Development Tools SparkFun Qwiic Alphanumeric Display - Green 4In Stock
Min.: 1
Mult.: 1
Display Development Tools Display Shields I2C
SparkFun Power Management IC Development Tools The SparkFun 3.3V Buck Regulator Breakout features the AP3429A from Diodes Inc. a 2A step-down DC-DC converter with an input voltage range of 2.7V to 5.5V. This full-size 1in. x 1in. version of our buck regulator boards is configured to provide a r 10In Stock
Min.: 1
Mult.: 1

Power Management IC Development Tools Breakout Boards
SparkFun Power Management IC Development Tools Does your microcontroller need to control a high-voltage item like a 12V LED strip while also needing to be powered? Do you want to avoid having multiple power adapters and microcontrollers for your project? The MOSFET Power Switch and Buck Regulat 6In Stock
Min.: 1
Mult.: 1
Power Management IC Development Tools Development Kits
SparkFun Audio IC Development Tools LilyPad Buzzer 6In Stock
Min.: 1
Mult.: 1

Audio IC Development Tools
SparkFun Temperature Sensor Development Tools LilyPad Temperature Sensor 3In Stock
10Expected 10/6/2026
Min.: 1
Mult.: 1

Temperature Sensor Development Tools
SparkFun Acceleration Sensor Development Tools LilyPad ACCLRM ADXL335
Datasheet
7In Stock
Min.: 1
Mult.: 1

Acceleration Sensor Development Tools
SparkFun Interface Development Tools FTDI Basic Breakout 3.3V 73In Stock
Min.: 1
Mult.: 1

Interface Development Tools