Top 8 Best Adafruit Feather

Module is nestled in at the end of this Feather contains a dual-core ESP32 chip. ESP32 has way more GPIO than the ESP8266. Recommended for makers who have some experience with microcontroller programming.. Pre-assembled headers.

ATSAMD21G18 ARM Cortex M0 processor - the same one used in the Arduino Zero. 256K of FLASH 8x more than the Atmega328 or 32u4 and 32K of RAM 16x as much. Built in USB so it has USB-to-Serial program debug capability built in with no need for an FTDI-like chip. 3.7V Lithium polymer battery connector and built in battery charging.

ESP32-S2 240MHz Tensilica processor - the next generation of ESP32, now with native USB so it can act like a keyboardmouse, MIDI device, disk drive, etc. Mini module has FCCCE certification and comes with 4 MByte of Flash and 2 MByte of PSRAM - you can have huge data buffers. Serial debug output pin optional, for checking the hardware serial debug console. Low Power friendly In deep sleep mode we can get down to 80100uA of current draw from the Lipoly connection. Quiescent current is from the power regulator, ESP32-S2 chip, and Lipoly monitor. Turn off the NeoPixel and external I2C power for the lowest quiescent current draw.. Arduino or CircuitPython compatible.

ATSAMD21G18 48MHz with 3.3V logicpower. 256KB of FLASH 32KB of RAM. Easy reprogramming. Built in USB so it has USB-to-Serial program debug capability built in with no need for an FTDI-like chip.

A highly-capable Cortex M0 processor with ton more IO pins, lots of 12-bit ADCs, a 10-bit DAC, 6 total SERCOMs that can each do SPI, I2C or UART 3 are used by the existing interfaces, leaving you 3, plenty of timers, PWMs, DMA, native USB, and more. The ATWINC has much lower power usage, about 12mA for the WINC 10mA for the ATSAMD21 with auto-power management on for the WiFi and no power management for the ARM.. Stream more reliably less 'bursty' with the ATWINC..

Measures 2.0 x 0.9 x 0.28 50.8mm x 22.8mm x 7mm without headers soldered in. Light as a large feather - 5 grams. RP2040 32-bit Cortex M0 dual core running at 125 MHz 3.3V logic and power. 264 KB RAM. 8 MB SPI FLASH chip for storing files and CircuitPythonMicroPython code storage. No EEPROM.

ESP8266 80MHz with 3.3V logicpower 4MB of FLASH 32 MBit Built in WiFi 802.11 bgn. CP2104 USB-Serial converter onboard with 921600 max baudrate for uploading. 9 x GPIO pins - can also be used as I2C and SPI. 3.3V regulator with 500mA peak current output. Measures 2.0 x 0.9 x 0.28 51mm x 23mm x 8mm without headers soldered in Light as a large feather - 9.7 grams.

The Adafruit Feather nRF52 Bluefruit is an easy-to-use all-in-one Bluetooth Low Energy board, with a native-bluetooth chip, the nRF52832 It's our take on an 'all-in-one' Arduino-compatible Bluetooth Low Energy with built in USB and battery charging.. This chip has twice the flash, SRAM and performance of the earlier nRF51-based Bluefruit modules. Best of all it has Arduino IDE support so there is no 'helper' chip like the ATmega32u4 or ATSAMD21. Instead, this chip is programmed directly It's got tons of awesome peripherals plenty of GPIO, analog inputs, PWM, timers, etc. Leaving out the extra microcontroller means the price, complexity and power-usage are all lowerbetter.. It allows you to run code directly on the nRF52832, straight from the Arduino IDE as you would with any other MCU or Arduino compatible device. A single MCU means better performance, lower overall power consumption, and lower production costs if you ever want to design your own hardware based on your Bluefruit nRF52 Feather project. The chip comes pre-programmed with an auto-resetting bootloader so you can upload quickly in the Arduino IDE with no button-pressing. Want to program the chip directly You can use our command line tools with your favorite editor and toolchain.. The example code works great with Adafruit's existing iOS and Android app..

SX127x LoRa based module with SPI interface. Packet radio with ready-to-go Arduino libraries. Use license-free ISM bands. 5 to 20 dBm up to 100 mW Power Output Capability selectable in software. Simple wire antenna or spot for uFL connector.