STM32L0 Discovery kit LoRa, low-power wireless. B-L072Z-LRWAN1
Small GPS location module with L80-39 GPS chip, USB and TTL two...
Dynamic NFC/RFID tag IC expansion board based on ST25DV04K for STM32...
This Bluetooth Audio receiver module includes a USB port and TF card...
relative humidity sensor with integrated temperature sensor for...
Adafruit 255 - ChronoDot - Ultra-precise Real Time Clock - v2.1
This is a great battery-backed real time clock (RTC) that allows your microcontroller project to keep track of time even if it is reprogrammed, or if the power is lost. Perfect for datalogging, clock-building, time stamping, timers and alarms, etc. Adafruit 264
DS3231 Precision RTC FeatherWing adds an extremely accurate I2C-integrated Real Time Clock (RTC) with a Temperature Compensated Crystal Oscillator (TCXO) to any Feather main board. Adafruit 3028
Real-time clock module with M41T56C64
DS1307 Real Time Clock Module with AT24C32 Memory, I2C, RoHS
2.8 inch Arduino Touch LCD Shield