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EnglishWhat Is SparkFun Electronics?
Updated
SparkFun Electronics is an online retail store that sells the parts and components needed to build electronics projects. It is aimed at hobbyists, students, educators, and prototypers who want to buy individual boards, sensors, and modules rather than industrial volumes. The catalog centers on microcontroller boards, sensors, and development tools, with a strong emphasis on SparkFun's own Qwiic-connected products.
What SparkFun sells
The homepage highlights several product families:
- Environmental sensors — for example, the STCC4/SHT40 CO2 Sensor for measuring indoor CO2 with temperature and humidity compensation, and the SFA40 Formaldehyde Sensor for HCHO measurement from 0–2000 ppb.
- Current and power sensing — the Non-Invasive Current Sensor (ADE7953, Qwiic) paired with a 100A split-core current transformer, plus an INA237 current sensor breakout.
- Microcontroller and compute boards — Teensy boards, Raspberry Pi Touch Display 2, and Raspberry Pi Compute Module 5.
- Breakout boards and accessories — such as the MCP4725 I2C digital-to-analog converter breakout.
The site also organizes products into browsable top-level electronics categories, so you can shop by component type rather than only by featured items.
The Qwiic ecosystem
A defining feature is Qwiic, SparkFun's connector standard for I2C sensors and modules. Qwiic-enabled boards plug together with cables, removing the need for soldering or breadboarding during prototyping. The product pages describe sensors as having "easy Qwiic connectivity" and "Qwiic I2C integration," and one highlighted logger is described as automatically detecting Qwiic sensors and starting to log data locally or to the cloud. If you are building a project around I2C sensors, choosing Qwiic-compatible parts reduces wiring work.
Pricing and stock signals
Listed prices on the homepage include:
| Product | Listed price | Stock status |
|---|---|---|
| SparkFun CO2 Sensor – STCC4/SHT40 (Qwiic) | $30.95 | In stock |
| SparkFun Formaldehyde Sensor – SFA40 (Qwiic) | $49.95 | In stock |
| Non-Invasive Current Sensor Kit | $28.95 | Backorder |
| Non-Invasive Current Sensor – ADE7953 (Qwiic) | $19.95 | In stock |
| Split-Core Current Transformer – 100A to 50mA | $10.95 | In stock |
| Raspberry Pi Touch Display 2 – 10″ Portrait | $96.95 | In stock |
| Raspberry Pi Compute Module 5 64GB – 4GB RAM (Wireless) | $150.00 | Backorder |
| MCP4725 I2C DAC Breakout | $4.75 | In stock |
Several items show volume pricing ("as low as"), so the per-unit cost drops at higher quantities. Stock status is shown per item, and some products are on backorder — check availability before planning a build around a specific part.
Shipping and location
SparkFun states it offers free domestic shipping on most orders over $100 and describes itself as "born & wired in Boulder, CO." That makes it a practical source if you are ordering within the United States and can consolidate purchases to reach the free-shipping threshold. International shipping terms are not stated on the homepage, so confirm them at checkout if you are ordering from outside the US.
When SparkFun is a good fit
Choose SparkFun when you want:
- Small quantities of sensors, breakouts, and dev boards for a prototype or class project.
- Qwiic-compatible modules that connect without soldering.
- Documented, branded products where the retailer is also the designer, so support and guides align with the hardware.
Look elsewhere if you need production volumes, or if a specific part is on backorder and your timeline is fixed — in that case, check the stock status first and consider an alternative part in the same category.