Adafruit HUZZAH ESP8266 Breakout
ESP8266-based WiFi microcontroller breakout running at 80 MHz. Adds wireless connectivity to projects at low cost.
ESP8266-based WiFi microcontroller breakout running at 80 MHz. Adds wireless connectivity to projects at low cost.
| Pin | Type | Voltage |
|---|---|---|
| V+ | Power | 3.4-6V, 4-6V recommended |
| VBat | Power | 3.4-6V |
| 3V | Power | 3.3V |
| GND | Ground | 0V |
| TXRX | UART | 3.3V TX, 5V-compliant RX |
| #0#2#4#5#12#13#14#15#16 | GPIO | 3.3V only |
| A | Analog | 0-1.0V max |
| RSTEN | Control | logic |
USB · 3.3 V
Verify supply voltage and logic levels before powering up.
Module pins: GND, TX/RX, #0/#2/#4/#5/#12/#13/#14/#15/#16. Schematik maps them to your board in the app.
Wi-Fi and Bluetooth on a single chip, in every shape from Espressif DevKitC to Adafruit Feathers with STEMMA QT, DFRobot FireBeetles tuned for battery life, and Seeed XIAOs under a thumbnail.
10 I/Os Relay Module - CPU ESP32 (Relay Output) visual preview10 I/Os Relay Module - CPU ESP32 (Relay Output)
Adafruit ESP32 Feather V2 w.FL Antenna - 8MB Flash + 2MB PSRAM visual previewAdafruit ESP32 Feather V2 w.FL Antenna - 8MB Flash + 2MB PSRAM
Adafruit ESP32-C6 Feather - STEMMA QT visual previewAdafruit ESP32-C6 Feather - STEMMA QT
Adafruit ESP32-S2 Feather - 4MB Flash + 2MB PSRAM visual previewAdafruit ESP32-S2 Feather - 4MB Flash + 2MB PSRAM
Adafruit ESP32-S2 Feather with BME280 Sensor - STEMMA QT visual previewAdafruit ESP32-S2 Feather with BME280 Sensor - STEMMA QT
Adafruit ESP32-S3 Feather 8MB with w.FL Antenna visual previewAdafruit ESP32-S3 Feather 8MB with w.FL Antenna
Adafruit Feather HUZZAH with ESP8266 WiFi visual previewAdafruit Feather HUZZAH with ESP8266 WiFi
Adafruit HUZZAH32 – ESP32 Breakout Board visual previewAdafruit HUZZAH32 – ESP32 Breakout Board
Adafruit HUZZAH32 ESP32 Feather Board visual previewAdafruit HUZZAH32 ESP32 Feather Board
Adafruit Metro ESP32-S3 with 16MB Flash 8MB PSRAM visual previewAdafruit Metro ESP32-S3 with 16MB Flash 8MB PSRAM
Adafruit Metro M4 Express AirLift (WiFi) - Lite visual previewAdafruit Metro M4 Express AirLift (WiFi) - Lite
Adafruit QT Py ESP32-C3 WiFi Dev Board with STEMMA QT visual previewAdafruit QT Py ESP32-C3 WiFi Dev Board with STEMMA QT
10 I/Os PLC Module - CPU Arduino Nano (Optoisolated Output) visual previewAbout 75 boards across every Arduino generation: 5V Uno/Mega/GIGA, 3.3V MKR and Portenta, plus DFRduino and Bluno compatibles. Confirm the voltage rail before stacking any shield.
Boards · Arduino boards · 77 parts
15x7 CharliePlex LED Matrix FeatherWing - Cool White visual previewAbout 270 add-ons across Pi HATs, Arduino shields, and FeatherWings. The same function — motor control, PoE, display — usually ships once per host connector family. Get the host board right first.
Boards · HATs, Shields & add-ons · 270 parts
16-Ch Servo Driver Breakout for micro:bit, I2C visual previewSpecialists: Teensy for high-clock audio and USB, Adafruit SAMD boards running CircuitPython or the Arduino IDE, proper STM32 eval kits, and the micro:bit classroom ecosystem. Schematik builds target ESP32, Arduino Uno, and Pico; come here when you have a specific reason to.
Boards · Other MCU boards · 229 parts
Adafruit DVI Breakout Board for HDMI Source Devices visual previewThe Raspberry Pi MCU line — Pico, Pico 2, and third-party boards on the same silicon — plus a deep bench of Pico-pinout displays, loggers, and radio modules that do nothing without a Pico plugged in.
Boards · Pico & RP2040 boards · 43 parts