This simple development board for the STM32F411 is a great way to add a powerful STM chip to your next project. Featuring the STM32F411CEU6, this chip has 512 KB of flash, 128 KB of SRAM, and runs at 100 MHz. There’s a spot on the bottom for SOIC flash memory – you could solder on a 2 MB SPI flash memory chip to give yourself more space for datalogging or file storage.
The board features a USB C connector, with a 3.3V 100mA LDO regulator. There are both 25mhz and 32.768 KHz crystals on board. There’s a few handy buttons: a BOOT button for entering the ROM DFU bootloader, a reset button, and a generic button on PA0 for users. One power LED and one user-controllable LED on PC13.
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.