Parts › Interface & Expansion
AllADC & DAC Modules (27)Breakouts & Adapters (46)Expansion Boards & Shields (15)I/O Expanders & Multiplexers (27)Isolators (4)Level Shifters (11)Programmers, Debuggers & USB-Serial (10)RTC & Timing (21)Security & Crypto (4)Signal Conditioning & RC (1)
Adafruit DS3231 Precision RTC - STEMMA QTADA5188
Adafruit DS3231 Precision RTC BreakoutADA3013
Adafruit PCF8523 Real Time Clock Assembled Breakout BoardADA3295
Adafruit PCF8523 Real Time Clock Breakout BoardADA5189
Adafruit PCF8574 I2C GPIO Expander BreakoutADA5545
Adafruit PCF8575 I2C 16 GPIO Expander BreakoutADA5611
Adafruit PiCowbell Adalogger for Pico - MicroSD, RTC & STEMMA QTADA5703
Adafruit PiRTC - PCF8523 Real Time Clock for Raspberry PiADA3386
Adafruit S-35710 Low-Power Wake Up Timer BreakoutADA5959
Adafruit Si5351A Clock Generator with STEMMA QT - 8KHz to 160MHzADA5640
Adafruit TPL5110 Low Power Timer BreakoutADA3435
Adafruit TPL5111 Low Power Timer BreakoutADA3573
Adalogger FeatherWing - RTC + SD Add-on For All Feather BoardsADA2922
DS3231 Precision RTC FeatherWing - RTC Add-on For Feather BoardsADA3028
Gravity: I2C DS1307 RTC ModuleDFR0151
Gravity: I2C SD2405 RTC ModuleDFR0469
Grove - DS1307 RTC (Real Time Clock) for Arduino101020013
Grove - High Precision RTC (DS1307)102020083
Real Time Clock (RTC) Unit (HYM8563)U126
SparkFun Real Time Clock Module - RV-1805 (Qwiic)BOB-14558
SparkFun Real Time Clock Module - RV-8803 (Qwiic)BOB-16281