Arduino Uno R4 vs Digilent Arty A7-100T
Side-by-side comparison of features, pricing, ratings, and alternatives.
The Arduino Uno R4 is the latest revision of the world's most popular beginner microcontroller board, now powered by a 32-bit Renesas RA4M1 processor - a major jump from the original 8-bit design while keeping the same beginner-friendly form factor and pin layout. It remains the standard starting point for electronics education, supported by an enormous library ecosystem and the simple Arduino IDE, making it approachable for students and hobbyists building their first circuits. The WiFi variant adds built-in wireless connectivity for IoT projects, while a built-in 12x8 LED matrix on the WiFi model enables simple visual output without extra components.
The Arty A7‑100T is a low‑cost, Arduino‑compatible development board that integrates a Xilinx Artix‑7 100‑pin FPGA, offering high‑performance programmable logic in a small form factor. It includes a rich set of peripherals such as PMOD, Arduino headers, and HDMI, making it ideal for both learning and building real‑world projects. Designed for makers, students, and engineers, the board supports Vivado Design Suite and provides extensive documentation and reference designs, enabling quick start‑up and easy integration into custom hardware solutions.
Around $20-27 depending on the variant.
- Extremely beginner-friendly
- Huge tutorial and library ecosystem
- Backward compatible with existing shields
- Affordable entry point
- High‑density Artix‑7 FPGA at a low price
- Arduino‑compatible headers simplify peripheral integration
- Extensive I/O options with PMOD and FMC connectors
- Open‑hardware resources and community support
- Less powerful than Raspberry Pi for compute-heavy tasks
- No built-in display or OS
- WiFi variant costs more
- Requires Vivado (Windows/Linux) which has a steep learning curve
- Limited on‑board memory; external RAM needed for large designs
- No built‑in Wi‑Fi or Bluetooth connectivity
What reviewers say
Arduino Uno R4 Reviews
4.5 (2)Highly recommend Arduino Uno R4
I picked up Arduino Uno R4 a while back and haven't looked back. Huge tutorial and library ecosystem. One minor gripe: wifi variant costs more, but it hasn't been a dealbreaker. Would recommend.
Does exactly what we need
Been a regular user of Arduino Uno R4 for a while now. Affordable entry point. No major complaints so far. Would recommend.
Digilent Arty A7-100T Reviews
No reviews yet.
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The Verdict
AI-generated from listing dataThe Arty A7‑100T offers far greater processing power and I/O flexibility at a premium price, while the Arduino Uno R4 provides an ultra‑low‑cost, beginner‑friendly platform with extensive community support.
Key differences
- •Processing: FPGA (Artix‑7) vs 32‑bit microcontroller – FPGA is far more capable for parallel logic.
- •I/O expansion: Arty has PMOD, FMC, HDMI and Arduino headers; Uno R4 only supports standard Uno shields.
- •Cost: Arty costs about $199; Uno R4 is $20‑27, a ten‑fold price difference.
- •Development tools: Arty requires Xilinx Vivado (steep learning curve); Uno R4 uses the simple Arduino IDE.
- •Connectivity: Arty includes HDMI and multiple I/O ports but no built‑in Wi‑Fi; Uno R4 offers optional Wi‑Fi but fewer ports.
Performance
Arty A7‑100T features a Xilinx Artix‑7 100T FPGA with 15,850 logic cells, far surpassing the Uno R4’s 32‑bit microcontroller.
Build quality
No specific build‑quality data provided for either board; both are standard development hardware.
Connectivity
Arty offers Arduino headers, four PMOD, two FMC‑LPC slots, and HDMI; Uno R4 only provides Uno shield slots and optional Wi‑Fi.
Power & efficiency
Both are USB powered; no detailed power consumption figures are given.
Compatibility
Arty is Arduino‑compatible and adds extensive FPGA I/O; Uno R4 is only compatible with classic Uno shields.
Price & value
Uno R4 costs $20‑27 versus Arty’s $199, offering far lower entry cost.
Warranty & support
Arty includes a 1‑year warranty; Uno R4 warranty not specified.
Choose Arduino Uno R4 if…
Beginners or low‑budget hobbyists needing simple microcontroller projects and extensive tutorials.
Choose Digilent Arty A7-100T if…
Advanced prototypers needing FPGA logic, high I/O count, and willing to invest $200.
Common questions
How much does each board cost?
Arty A7‑100T MSRP is $199; Arduino Uno R4 retails around $20‑27 depending on the variant.
Which board is easier for a beginner to program?
The Uno R4 uses the Arduino IDE, which is beginner‑friendly; the Arty requires Xilinx Vivado, which has a steep learning curve.
Can I use existing Arduino shields with the Arty board?
Yes, the Arty provides two Arduino Uno R3‑compatible headers for shield compatibility.