All Products

SKU: AF-5995 · MPN: ADA5995

DescriptionWhether you need to interface with various serial protocols, this USB to Multi-Protocol Serial adapter has you covered. It supports RS232, TTL UART, RS485, and RS422, all with quick-connect screw terminals, eliminating the need for soldering or special cables. Simply plug the adapter ...

SKU: AF-5994 · MPN: ADA5994

No matter what serial-esque protocol you need to interface with, this USB to Multi-Protocol Serial adapter cable will be able to get this-connected-to-that. It supports RS232 serial, TTL UART serial, RS485 and RS422. All with quick-connecting screw terminals so you don't need to do any soldering ...

SKU: AF-4279

The Adafruit Ultimate GPS with USB brings plug-and-play GPS and GLONASS positioning to any computer, laptop, or embedded Linux device via a built-in CP2104 USB-to-Serial converter. Simply connect a Micro USB cable and start receiving location data at 9600 baud — no microcontroller required. Buil...

SKU: AF-18

This USB-to-serial converter adds a DB9 RS-232 serial port to your computer via USB. Based on the FTDI FT232RL chip, it delivers true RS-232 voltage levels (approximately ±10V) rather than TTL 5V — ensuring compatibility with older devices like GPS receivers, handheld programmers, and other equip...

SKU: DF-FIT0781

A versatile USB-to-serial converter module supporting six conversion modes: USB-TTL, USB-232, USB-485, TTL-232, TTL-485, and 232-485. Switch between modes using onboard DIP switches — no need for multiple adapters. Built around the CP2102 chip with 3.3V/5V compatibility. Includes 500mA fuse prot...

SKU: AF-6065 · MPN: ADA6065

The Adafruit CP2105 Friend provides two independent UART serial ports from a single USB-C connection — no USB hub required. Built around the Silicon Labs CP2105 dual-port bridge, it enumerates as two separate COM ports when plugged in, giving you an Enhanced port and a Standard port with differen...

SKU: DF-TEL0070

A multi-protocol converter board that supports USB, TTL, RS232, and RS485 interfaces. It can convert signals between any two protocols and supports one input to multiple outputs simultaneously — for example, converting a USB signal to TTL, RS232, and RS485 at the same time. Based on the FTDI FT2...

SKU: AF-5893 · MPN: ADA5893

This compact USB serial UPDI programmer is made for programming modern ATtiny chips, including parts used on Adafruit seesaw boards such as the ATtiny816, ATtiny817 and ATtiny1616. It provides selectable 3V or 5V power and logic, along with handy status LEDs so you can see power and serial activi...

SKU: AF-5879 · MPN: ADA5879

The Adafruit UPDI Friend is a compact USB serial programmer for ATtiny microcontrollers that use the UPDI (Unified Program and Debug Interface) protocol. Built around the CH340E USB serial converter with USB Type-C, it provides reliable cross-platform programming with switchable 3V or 5V power an...

SKU: AF-5889 · MPN: ADA5889

This compact wireless development board gives you a full-featured ESP32 platform in the familiar ItsyBitsy format. It uses the ESP32 PICO ECO V3 in an FCC-certified ESP32 Pico module, combining a dual-core 240MHz processor with 2.4GHz Wi-Fi, Bluetooth® Classic and BLE, plus 8 MB of Flash and 2 MB...

SKU: AF-2590

The Adafruit Metro Mini 328 packs the same ATmega328P power as a full-sized Metro into a tiny breadboard-friendly form factor. Running at 16 MHz with 5V logic, it's pin-compatible with Arduino UNO R3 and works with the Arduino IDE by selecting "Arduino UNO" in the Boards menu. For the latest revi...

SKU: AF-2821

The Feather HUZZAH ESP8266 is an all-in-one Wi-Fi development board with built-in USB and battery charging. Powered by the ESP8266 with a full Wi-Fi stack, it's a compact and affordable way to add Internet connectivity to your projects using the Arduino IDE or NodeMCU Lua. The CP2104 USB-serial ...

SKU: AF-50

We sure love the ATmega328 here at Adafruit, and we use them a lot for our own projects. The processor has plenty of GPIO, Analog inputs, hardware UART SPI and I2C, timers and PWM galore - just enough for most simple projects. When we need to go small, we use a Metro Mini or a Trinket M0,...

SKU: AF-5395

The Adafruit QT Py ESP32 Pico brings the full power of the classic ESP32 into the tiny QT Py form factor. Built around the ESP32-PICO-V3-02 — an all-in-one module with dual-core 240 MHz Tensilica processor, Wi-Fi, Bluetooth Classic + BLE, 8 MB flash, and 2 MB PSRAM — this thumbnail-sized board is...

SKU: AF-284

Note: These use genuine FTDI chips, either we purchase them or they are manufactured to our specifications with the requirement of genuine FTDI chips 10/22/14 - read more. Long gone are the days of parallel ports and serial ports. Now the USB port reigns supreme! But USB is hard, and you just wan...

SKU: DF-TEL0038

A passive RS-232 to RS-485 converter that extends serial communication distance up to 1.2km using balanced differential signalling. Self-powered from the RS-232 TX/RX or RTS/CTS lines — no external power supply required. Features opto-isolation and lightning/surge protection for reliable industri...

SKU: AF-5568

The Adafruit CH9102F Friend is a USB-to-Serial converter breakout featuring the affordable WCH CH9102F chip and a modern USB Type-C connector. It uploads code at up to 3 Mbit/s and includes auto-reset for Arduino/ATmega328 boards — no manual pin manipulation needed. The pinout matches standard F...

SKU: AF-954

The cable is easiest way ever to connect to your microcontroller/Raspberry Pi/WiFi router serial console port. Inside the big USB plug is a USB<->Serial conversion chip and at the end of the 36" cable are four wire - red power, black ground, white RX into USB port, and green TX out of the USB por...

SKU: WS-7965

A USB to TTL serial adapter cable with an embedded PL2303 converter chip. This 1-metre cable provides a simple way to add serial communication to your projects, connecting a standard USB-A port to 3.3V TTL-level UART signals via a 4-pin 2.54mm header. Ideal for accessing serial consoles on singl...

SKU: AF-3046

Feather is the flagship development board from Adafruit, and like its namesake it is thin, light, and lets you fly! We designed Feather to be a new standard for portable microcontroller cores. This is the Assembled Adafruit Feather HUZZAH ESP8266&nbsp;with headers - our take on an 'all-in-one'...