SparkFun Electronics Microcontroller Boards and Sensor Systems

SparkFun Electronics microcontroller boards, MicroMod modular systems, and Qwiic sensors: technical selection and engineering data for industrial telemetry.

SparkFun RedBoard series controllers and development boards

SparkFun RedBoard microcontroller boards are engineered in the classic Uno profile with full expansion shield mechanical compatibility. Integrated Qwiic connectors and onboard level shifters deliver dependable control in industrial telemetry enclosures.

RedBoard Plus and RedBoard Turbo models powered by ATmega328P and SAMD21 processors
Onboard USB-C connection and dependable voltage regulator accepting broad input ranges
Direct I2C bus wiring routed to the standardized Qwiic system interface receptacle
Full pinout compatibility with Uno R3 expansion shields for industrial field sensors

SparkFun MicroMod modular embedded ecosystem and carrier boards

SparkFun MicroMod modular architecture uses the standardized M.2 Key E connector profile to pair swappable processing cores with specialized carrier boards. This system permits rapid microcontroller replacement without revising the primary circuit layout.

Swappable processor boards featuring ESP32, Teensy, RP2040, and STM32F405 engines
Specialized Main Boards supporting simultaneous attachment of two function add-on cards
Solderless processor upgrades using standardized M.2 single-screw mechanical mounting
Comprehensive peripheral layout with Qwiic ports for direct external sensor connection

SparkFun Qwiic digital sensor modules and telemetry boards

The SparkFun sensor lineup with integrated Qwiic ports includes high-precision measurement modules for monitoring environmental and mechanical variables. The 4-wire I2C interface prevents reverse-polarity issues and shortens sensor deployment times.

Combined atmospheric pressure, relative humidity, and temperature sensors on BME280
High-precision digital temperature measurement modules using TMP117 transducers
Nine-degree-of-freedom inertial measurement units based on ICM-20948 motion components
Simple daisy-chain wiring configuration connecting multiple units along one I2C bus

High-precision GNSS RTK positioning and navigation modules

SparkFun navigation boards powered by u-blox multi-band receivers achieve centimeter-level positional accuracy for autonomous equipment. Integrated real-time kinematic processing and dead reckoning navigation support robotic transport platforms.

GPS-RTK2 and Dead Reckoning modules powered by multi-band u-blox ZED-F9P receivers
Concurrent tracking across GPS, GLONASS, Galileo, and BeiDou satellite constellations
Robust high-frequency SMA antenna jacks alongside compact coaxial U.FL connection ports
Direct delivery of RTCM differential correction data streams and standard NMEA packets

SparkFun Thing Plus wireless controllers and telemetry boards

Feather-profile SparkFun Thing Plus development boards are optimized for remote data acquisition units and industrial wireless communication. Built-in radio transceivers and battery charging circuits support resilient field operation in remote telemetry sites.

Wireless processing modules with WiFi and Bluetooth transceivers on dual-core ESP32
Integrated lithium-polymer battery charger with comprehensive power management LEDs
Full pin compatibility with the Feather layout for modular hardware expansions
Hardware Qwiic connection port for reading digital sensors without additional wiring

Qwiic system interconnect cables and interface connectors

Original SparkFun interconnect cables and surface-mount receptacles ensure mechanical retention and electrical integrity across the Qwiic bus. Color-coded wiring and polarized housing keys shield automation equipment from short-circuit damage.

Flexible jumper cables spanning 50 mm to 500 mm terminated with JST SHR-04V-S housings
Surface-mount circuit board receptacles matching the SM04B-SRSS-TB connector standard
Adapter cables connecting Qwiic receptacles to standard 2.54 mm pitch Dupont pin headers
Four-conductor wiring layout separating 3.3V power, GND reference, and SDA/SCL lines

Architecture of SparkFun RedBoard microcontroller platforms

SparkFun RedBoard microcontroller development boards are built for rapid deployment of digital control logic into industrial automation equipment and telemetry monitoring systems.

Designed around the established Uno R3 footprint, each board incorporates a modern USB-C interface for firmware loading and debugging. Powered by ATmega328P or 32-bit ARM Cortex-M0+ SAMD21 processors, the units deliver high frequency stability and low electrical consumption.

Onboard voltage regulation components maintain steady 3.3V and 5V power rails when fed from fluctuating industrial enclosure supplies. Standard hardware I2C routing to a compact Qwiic connector allows direct attachment of external sensor modules without breadboards.

SparkFun MicroMod modular ecosystem with swappable processor cores

The SparkFun MicroMod modular hardware standard addresses embedded equipment modernization without requiring redesign of complex circuit routing. The concept relies on an M.2 Key E connector receptacle that links swappable Processor Boards with specialized Carrier Boards.

Automation engineers can select processing cores based on ESP32, Raspberry Pi RP2040, STM32F405, or NXP i.MX RT1062 Teensy microcontrollers.

Single-screw mechanical retention firmly secures the processor board against vibration, while dedicated Main Boards accommodate concurrent attachment of two function add-on cards for expanded communication protocols.

SparkFun Qwiic connection system for solderless module interconnects

The SparkFun Qwiic Connect System establishes a dependable standard for interfacing measurement devices and peripheral nodes over I2C. The architecture employs a 4-pin subminiature JST receptacle with a 1 mm pin pitch rated for continuous electrical currents up to 1.4 A.

Polarized connector housings and defined lead arrangements prevent reverse-polarity short circuits on 3.3V power and ground rails.

Daisy-chain wiring capability enables connecting numerous addressable sensors measuring temperature, pressure, and vibration along one physical communication bus with minimal field installation effort.

High-precision GNSS RTK positioning boards for automated navigation

SparkFun GPS-RTK positioning modules are engineered for automated agricultural machinery, robotic mobile transporters, and surveying platforms.

Built around u-blox ZED-F9P and ZED-F9R multi-band receivers, the hardware tracks signals from GPS, GLONASS, Galileo, and BeiDou satellite constellations concurrently. Integrated real-time kinematic processing resolves position coordinates to centimeter accuracy in real time.

Embedded Dead Reckoning algorithms maintain uninterrupted positional tracking during temporary satellite signal loss inside tunnels and industrial facilities.

SparkFun Thing Plus wireless telemetry boards for remote monitoring

The SparkFun Thing Plus development series adopts the compact Feather layout to serve as autonomous data acquisition nodes and wireless telemetry units.

Integrated WiFi and Bluetooth Low Energy transceivers running on dual-core ESP32 processors deliver consistent data forwarding to supervisory servers. An integrated lithium-polymer battery charger supports uninterrupted battery operation during utility electrical disruptions.

Hardware Qwiic ports permit interfacing industrial environmental sensors without auxiliary breadboards or pull-up resistors.

Qwiic interconnect cables and surface-mount interface receptacles

To ensure durable communication between processing boards and sensor assemblies, SparkFun provides standardized cable assemblies and surface-mount receptacles. Flexible ribbon jumpers ranging from 50 mm to 500 mm in length feature JST SHR-04V-S housings with elevated flex fatigue resistance.

For prototyping and interfacing with control cabinet terminal blocks, SparkFun supplies adapter leads terminated with standard 2.54 mm pitch Dupont pin headers. Industrial cable construction minimizes signal attenuation and eliminates electrical interference across extended I2C wiring runs.

SparkFun Electronics and model names are trademarks of their respective owners and are used only to identify the equipment for which we source parts. SpareX is not an official dealer, distributor or representative of SparkFun Electronics and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.