SparkFun Accessories No these aren't some sort of weird AA battery this is actually a 18650 Lithium Ion Cell. These round high capacity cells have been mainly used in flashlight type applications but with its capability to be used as a drop-in rechargable cell at 3.7V

SparkFun Accessories No these aren't some sort of weird AA battery this is actually a 18650 Lithium Ion Cell. These round high capacity cells have been mainly used in flashlight type applications but with its capability to be used as a drop-in rechargable cell at 3.7V

SparkFun Accessories This is a PCB mount clip to hold a 18650 Lithium Ion Cell battery. Each battery holder is sold in single units you'll need two for each battery. These work great for larger high capacity applications where a drop-in rechargable cell is needed. Thes

SparkFun Accessories This is a PCB mount clip to hold a 18650 Lithium Ion Cell battery. Each battery holder is sold in single units you'll need two for each battery. These work great for larger high capacity applications where a drop-in rechargable cell is needed. Thes

Development Boards & Kits - AVR LilyTiny

Interface Development Tools Transceiver Breakout - MAX3232

Development Boards & Kits - AVR SparkFun RedBoard Plus

Interface Development Tools USB to RS-485 Converter

Zigbee Development Tools - 802.15.4 Xbee Explorer Regulated

Interface Development Tools Beefy 3 FTDI Basic Breakout

SparkFun Accessories This is the LM317TG voltage regulator a three-terminal positive regulator with a 1.2V to 37V adjustable output voltage. This adjustable regulator provides a local regulation internal current limiting thermal shut-down control and safe area protec

SparkFun Accessories This is the LM317TG voltage regulator a three-terminal positive regulator with a 1.2V to 37V adjustable output voltage. This adjustable regulator provides a local regulation internal current limiting thermal shut-down control and safe area protec

SparkFun Accessories Lithium Ion Battery - 400mAh

WiFi Modules - 802.11 The ESP8266 WiFi Module is a self contained SOC with integrated TCP/IP protocol stack that can give any microcontroller access to your WiFi network. The ESP8266 is capable of either hosting an application or offloading all WiFi networking functions f

WiFi Modules - 802.11 The ESP8266 WiFi Module is a self contained SOC with integrated TCP/IP protocol stack that can give any microcontroller access to your WiFi network. The ESP8266 is capable of either hosting an application or offloading all WiFi networking functions f

SparkFun Accessories Add another eight pins to your microcontroller using a MCP23008 port expander. The MCP23008 uses two I2C pins which can be shared with other I2C devices and in exchange gives you eight general purpose pins. You can set each of eight pins to be input

SparkFun Accessories Add another eight pins to your microcontroller using a MCP23008 port expander. The MCP23008 uses two I2C pins which can be shared with other I2C devices and in exchange gives you eight general purpose pins. You can set each of eight pins to be input

SparkFun Accessories This is an extremely tiny and light weight battery based on the new Polymer Lithium Ion chemistry. This is the highest energy density currently in production. Each cells outputs a nominal 3.7V at 40mAh. This may sound like not so much power but the

SparkFun Accessories This is an extremely tiny and light weight battery based on the new Polymer Lithium Ion chemistry. This is the highest energy density currently in production. Each cells outputs a nominal 3.7V at 40mAh. This may sound like not so much power but the

Interface Development Tools The AST-CAN485 Dev Board brings CAN (Control Area Network) and RS485 to a small Pro Mini form factor with the ability to interface to 24V input and outputs. When looking to save space losing the communication cable is one of the best opti

Interface Development Tools The AST-CAN485 Dev Board brings CAN (Control Area Network) and RS485 to a small Pro Mini form factor with the ability to interface to 24V input and outputs. When looking to save space losing the communication cable is one of the best opti

Power Management IC Development Tools Ardumoto Shield Kit

Interface Development Tools The SparkFun MicroMod Update Tool is built to interface with the MicroMod Asset Tracker Carrier Board and also makes it simple to communicate directly with the u-blox SARA-R510M8S module using u-blox s sophisticated m-center cellular evaluation sof

Interface Development Tools The SparkFun MicroMod Update Tool is built to interface with the MicroMod Asset Tracker Carrier Board and also makes it simple to communicate directly with the u-blox SARA-R510M8S module using u-blox s sophisticated m-center cellular evaluation sof

Development Boards & Kits - ARM The SparkFun Inventor's Kit for micro:bit v2 Lab Pack includes 10 complete micro:bit v2 Inventor's Kits an SIK Refill Pack and 25 AAA-sized batteries to get your students started in the world of electronics. The SIKs inside the Lab Pack have everyth

Development Boards & Kits - ARM The SparkFun Inventor's Kit for micro:bit v2 Lab Pack includes 10 complete micro:bit v2 Inventor's Kits an SIK Refill Pack and 25 AAA-sized batteries to get your students started in the world of electronics. The SIKs inside the Lab Pack have everyth

Security/Authentication Development Tools The SparkFun ATECC508A Cryptographic Co-Processor Breakout allows you to easily add strong authentication security to your IoT node edge device or embedded system. It includes two Qwiic ports for plug and play functionality. Utilizing our handy Qwi

Security/Authentication Development Tools The SparkFun ATECC508A Cryptographic Co-Processor Breakout allows you to easily add strong authentication security to your IoT node edge device or embedded system. It includes two Qwiic ports for plug and play functionality. Utilizing our handy Qwi

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

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

LED Lighting Development Tools The SparkFun ESP32 Thing Plus DMX to LED Shield is the perfect way to send and receive DMX data. Whether it's coming in via the onboard XLR-3 jack or ArtNet or outputting over the XLR-3 Jack/ArtNet this shield has you covered! It's the perfect way

LED Lighting Development Tools The SparkFun ESP32 Thing Plus DMX to LED Shield is the perfect way to send and receive DMX data. Whether it's coming in via the onboard XLR-3 jack or ArtNet or outputting over the XLR-3 Jack/ArtNet this shield has you covered! It's the perfect way

Zigbee Modules - 802.15.4 After years of popularity with the XBee Series 1 and XBee Series 2 we now have the XBee Series 3 which brings the best of both worlds. XBee 3 not only handles 802.15.4 and ZigBee but also BLE protocols and you can now talk to the modules over UART

Zigbee Modules - 802.15.4 After years of popularity with the XBee Series 1 and XBee Series 2 we now have the XBee Series 3 which brings the best of both worlds. XBee 3 not only handles 802.15.4 and ZigBee but also BLE protocols and you can now talk to the modules over UART

Development Boards & Kits - AVR Arduino Pro Mini 328 - 3.3V/8MHz

Development Boards & Kits - ARM Pro Micro RP2040

SparkFun Accessories The FTDI cable is a USB to Serial (TTL level) converter which allows for a simple way to connect TTL interface devices to USB. The I/O pins of this FTDI cable are configured to operate at 5V.The FTDI cable is designed around an FT232RQ which is hous

SparkFun Accessories The FTDI cable is a USB to Serial (TTL level) converter which allows for a simple way to connect TTL interface devices to USB. The I/O pins of this FTDI cable are configured to operate at 5V.The FTDI cable is designed around an FT232RQ which is hous

Raspberry Pi Accessories Raspberry Pi 500+ (Unit Only)