Arduino UNO R4 WiFi
Renesas RA4M1 Cortex-M4 at 48 MHz in the classic UNO footprint, with an ESP32-S3 radio and a 12 × 8 LED matrix.
€27.50
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From microcontrollers and sensors through passives and power to 3D printing, robotics and connectors. Every category filters on technical parameters.
Catalogue
Renesas RA4M1 Cortex-M4 at 48 MHz in the classic UNO footprint, with an ESP32-S3 radio and a 12 × 8 LED matrix.
Thick film 0805 resistor, 0.125 W, 1% tolerance, 150 V maximum working voltage.
Quad-core Cortex-A72 at 1.8 GHz with Gigabit Ethernet and two USB 3.0 ports.
Quad-core Cortex-A76 at 2.4 GHz with dual 4Kp60 HDMI, PCIe 2.0 and the 40-pin GPIO header.
Dual-core Xtensa LX7 at 240 MHz with native USB OTG, vector instructions for AI workloads and Bluetooth LE 5.
Multilayer X7R capacitor with 2.54 mm lead pitch, ±10% tolerance, 50 V rating.
STM32F401RE Cortex-M4F at 84 MHz with 512 kB flash, 96 kB SRAM and an on-board ST-LINK/V2-1 debugger.
ESP32-WROOM-32E module: dual-core Xtensa LX6 at 240 MHz, 520 kB SRAM, 4 MB flash, Wi-Fi and Bluetooth Classic.
Axial THT resistor, 1% tolerance, 50 ppm/K, rated for 250 V working voltage.
Quad-core Cortex-A53 at 1 GHz with 512 MB RAM and Wi-Fi, on a 65 × 30 mm board.
Three promises
Every product carries a full parameter set: voltage, interface, package, tolerance, dimensions. You narrow the listing by range and value, the way a distributor catalogue works — not by keyword.
Datasheet, pinout, schematic and CAD files sit on the product page. You check them before you buy, not after emailing support.
Orders placed before 16:00 on a working day are packed and dispatched the same day. The stock figure on the listing is the number of units on the shelf.
Knowledge
Start from a technical requirement, not a category. A practical guide to parametric filtering in Maker Core — choosing a microcontroller as the example.
Sep 2, 2026A new electronics and maker tech store built around parametric search, per-product documentation and 24-hour dispatch. Here's what we're building.
Sep 1, 2026Next step
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