Microcontrollers

Arduino Due microcontroller development board based on SAM3X8E ARM Cortex-M3. High-performance 32-bit Arduino with 3.3V logic and native USB support.

Arduino Mega 2560 Rev3 microcontroller development board based on ATmega2560. Extended Arduino form factor with 54 digital I/O pins and 4 UART ports.

Arduino Nano microcontroller board with USB connectivity, based on ATmega328P. Compact form factor ideal for embedded projects requiring a small footprint with full Arduino compatibility.

Bare Espressif ESP32 SoC IC in QFN-48 6x6 mm package. Dual-core Xtensa LX6 32-bit MCU up to 240 MHz with integrated 2.4 GHz Wi-Fi 802.11 b/g/n and Bluetooth 4.2 BR/EDR + BLE. 520 KB SRAM, 448 KB ROM, no in-package flash or PSRAM (external SPI flash required). 34 programmable GPIOs (5 strapping, 6 input-only), 18 ADC channels, 2 DACs, 10 capacitive-touch inputs, 4 SPI, 2 I2C, 3 UART, 2 I2S, SDIO host/slave, Ethernet MAC, TWAI (CAN 2.0), pulse-counter. Hardware AES/SHA/RSA acceleration. NRND (Not Recommended for New Designs) status as of datasheet v5.2.

Microchip (formerly Atmel) ATtiny85 8-bit AVR RISC microcontroller IC with 8 KB flash, 512 B EEPROM, 512 B SRAM, six GPIO, 4-channel 10-bit ADC, Universal Serial Interface (USI) supporting SPI/I2C-like signalling, two 8-bit timer/counters with PWM, internal RC oscillator, and an internal PLL for 64 MHz high-speed PWM. Default variant: ATTINY85-20PU in 8-pin PDIP, rated to 20 MHz at 4.5-5.5 V, -40 to +85 C industrial temperature range. Programmed via 6-pin AVR ISP (SPI on PB0/PB1/PB2 plus RESET) or debugWIRE single-wire interface on the RESET pin.

National Instruments roboRIO 2.0 Embedded Controller for FRC. Main robot controller with PWM, DIO, CAN, I2C, SPI, Ethernet, USB, and MXP expansion.

Raspberry Pi 5, Raspberry Pi Foundation

Bare-chip dual-core Arm Cortex-M0+ microcontroller in QFN-56 7x7 mm package. 264 KB SRAM with NO internal flash (external QSPI flash required for code execution via XIP). 30 multi-function GPIOs (GPIO0..GPIO29), 2x UART, 2x I2C, 2x SPI, 16 PWM channels (8 slices), 4-channel 12-bit ADC, USB 1.1 host/device PHY, and 8 user-programmable I/O state machines (PIO) across two PIO blocks. Flexible system clock up to 133 MHz default.

Thumb-sized ESP32-C3 (RISC-V) dev board in the XIAO form factor with USB-C, 3.3V I/O, Wi-Fi + BLE, and an external U.FL antenna connector.

Thumb-sized ESP32-C6 (RISC-V) dev board in the XIAO form factor with USB-C, 3.3V I/O, Wi-Fi 6 + BLE 5, IEEE 802.15.4 (Thread/Zigbee/Matter-capable radio), and an external U.FL antenna option.

Feather-format development board featuring Nordic nRF52832 SoC with Bluetooth LE, built-in LiPo charger, USB-UART, and Arduino IDE support.

Espressif's reference ESP32 development board. Hosts an ESP32-WROOM-32E module (Xtensa LX6 dual-core 240 MHz, 4 MB flash, 2.4 GHz Wi-Fi + Bluetooth 4.2 dual-mode) on a 54.4 x 27.9 mm breakout PCB. Exposes 38 pins on two 19-pin 2.54 mm headers (J2/J3), a Micro-USB port wired to a USB-to-UART bridge (CP2102N) for power and programming, and EN (reset) + BOOT (download) push-buttons. Breadboard-friendly footprint.

Entry-level ESP32-C3 development board (RISC-V) with integrated 4 MB flash, Micro-USB power/programming, and Wi-Fi + Bluetooth LE connectivity.

PJRC Teensy 4.1 high-performance microcontroller development board based on NXP i.MX RT1062 ARM Cortex-M7. Ultra-fast 600MHz processor with extensive I/O capabilities.