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SparkFun Optical Sensor Development Tools The SparkFun Qwiic Mini Human Presence and Motion Sensor is built around the STHS34PF80 Low-power high-sensitivity infrared (IR) sensor for presence and motion detection from STMicroelectronics. This sensor features an infrared motion and presence d 25In Stock
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SparkFun Distance Sensor Development Tool This is the HC-SR04-33 ultrasonic distance sensor. This economical sensor provides 2cm to 400cm of non-contact measurement functionality with a ranging accuracy that can reach up to 3mm. Each HC-SR04-33 module includes an ultrasonic transmitter a re
Datasheet
88In Stock
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SparkFun Power Management IC Development Tools LiPo batteries are a great way to power your projects. They're small lightweight and pack a pretty good punch for their size. Unfortunately even the best batteries eventually run low on power and when they do it's often unexpected (and at the wors 21In Stock
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SparkFun Other Tools More and more of our products use U.FL connectors so we wrote a tutorial on "Three Quick Tips About Using U.FL. However even when following all the best practices outlined in the tutorial we managed to rip more than a few connectors apart and it's 45In Stock
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SparkFun Wall Mount AC Adapters This isn't just a standard wall adapter; it's a versatile power supply for your entire workbench. This 65W Power Delivery (PD) Wall Adapter packs serious performance into a compact brick capable of powering everything from your laptop and soldering
Datasheet
5In Stock
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SparkFun RF Cable Assemblies This RP-SMA to U.FL Cable is commonly used to connect boards with the compact U.FL connector to an enclosure wall. This allows an external antenna to be attached. What makes this unassuming cable special is the slightly longer length of 150mm (compar 176In Stock
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SparkFun Multiprotocol Development Tools The SparkFun IoT RedBoard is an ESP32 Development Board that includes everything but the kitchen sink! Espressif's ESP32 WROOM is a powerful WiFi and Bluetooth MCU module that targets a wide variety of applications. At the core of this module is th 8In Stock
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SparkFun Sub-GHz Development Tools The SparkFun LoRaSerial Kit is a pair of serial radio modems that simply passes serial back and forth between one another. The LoRaSerial provides you with the means to report data every few seconds even if it's located beyond WiFi or Bluetooth ran
5In Stock
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SparkFun WiFi Development Tools - 802.11 The SparkFun ESP32 WROOM Thing Plus with USB-C is a great place to get started with Espressif IoT ideations while still enjoying all the amenities of the original ESP32 WROOM Thing Plus. Espressif's ESP32 WROOM is a powerful WiFi and Bluetooth MCU
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SparkFun Antennas A 433MHz antenna that utilizes an SMA connector and is 200mm long with a gain of 2dBi. Comes with the frequency laser printed on the antenna. 8In Stock
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SparkFun RF Adapters - In Series This adapter has a standard polarity Male SMA connection at both ends. It allows you to convert a standard polarity Female SMA connection to Male. You can screw it onto the female end of our Interface Cable - SMA Female to SMA Male to create a short 71In Stock
190Expected 8/12/2026
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SparkFun Bluetooth Development Tools - 802.15.1 The SparkFun IN100 NanoBeacon Lite Board offers the ubiquitous 2.4 GHz wireless low-energy BT beacon breakout with exceptionally low power consumption features and minimal programming required. The board features the IN100 NanoBeacon from InPlay 106In Stock
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SparkFun Antenna Development Tools The RTL-SDR BLOG V3 is a low-cost software defined radio USB dongle. Perfect for getting into projects that utilize software defined radios or just learning more about them. The RTL-SDR Blog V3 is an improved RTL-SDR dongle. RTL-SDR dongles were ori
2In Stock
15Expected 7/27/2026
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SparkFun Multiprotocol Modules The SparkFun BlueSMiRF v2 with headers is a wireless Bluetooth serial link. These boards work as a wireless serial UART pipe and are a great wireless replacement for serial cables. Simply pair connect and transmit serial data between your TX/RX l 19In Stock
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SparkFun Interface Development Tools The factory is currently not accepting orders for this product.
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Product Comments
5In Stock
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SparkFun Switch IC Development Tools A/D MUX Breakout CD74HC4067
Datasheet
369In Stock
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SparkFun Interface Development Tools Opto-isolator Breakout 266In Stock
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SparkFun Power Management IC Development Tools Energy Harvest B/O LTC3588
Datasheet
48In Stock
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SparkFun Interface Development Tools This is a breakout board for the SP3485 RS-485 transceiver IC which will convert a UART serial stream to RS-485. The SP3485 is a half-duplex transceiver so it can only communicate one way at a time but it can reach transmission speeds of up to 10M 441In Stock
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SparkFun Interface Development Tools This is the SparkFun USB to Serial Breakout for the FT232RL a small board with a built in USB to serial UART interface. This little breakout is built around the FT232RL IC from FTDI with an internal oscillator EEPROM and a 28-pin SSOP package thi
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114In Stock
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SparkFun Data Conversion IC Development Tools I2C DAC Breakout - MCP4725
Datasheet
360In Stock
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SparkFun Daughter Cards & OEM Boards SOIC to DIP Adapter - 8-Pin 379In Stock
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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
88In Stock
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SparkFun Interface Development Tools QwiicBus - EndPoint
Datasheet
404In Stock
528Expected 8/18/2026
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SparkFun Power Management IC Development Tools SparkFun BabyBuck Regulator Breakout - 3.3V (AP63203) 349In Stock
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