WisBlock RAK12002 RTC Module

The RAK12002 is a real-time clock (RTC) module for WisBlock with the RV-3028-C7 from Micro Crystal. Once set, the clock keeps running on a supercapacitor if the supply fails. Afterwards the core module reads date and time back from the RTC module.

WisBlock from RAK Wireless is a modular system for building custom LoRaWAN and IoT nodes. Core, sensor and IO modules are plugged onto a base board and screwed in place.

Recommended Accessories:

• WisBlock RAK19007 Base Board 2nd Gen
• WisBlock RAK19003 Base Board
• WisBlock Core RAK4631 with LoRa/BLE 5.0

Features:

• Slot: sensor slot A, B, C or D of a WisBlock Base Board. The RAK19007 has slots A to D, the RAK19003 Mini Base Board slots C and D, the RAK19001 slots A to F
• Micro Crystal RV-3028-C7 with built-in 32.768 kHz crystal
• Backup via 70 mF supercapacitor
• Automatic leap year correction
• I2C interface
• Very low current consumption, according to RAK 40 nA (datasheet table: max. 400 nA)

Application Examples:

• Time stamps for measured values and data loggers
• Timed measurements without network time

Documentation:

• RAK12002 documentation (RAK Wireless)
• RAK12002 datasheet (RAK Wireless)
• WisBlock Quick Start Guide (RAK Wireless)
• WisBlock sensor tutorial (RAK Wireless)

Technical Data:

• Manufacturer: RAK Wireless
• Manufacturer no.: 100032
• Model: RAK12002
• Chip: Micro Crystal RV-3028-C7
• Backup: 70 mF supercapacitor
• Interface: I2C
• Voltage: 3.3 V
• Dimensions: 10 × 10 × 1 mm
• Weight: 2.7 g

Scope of Delivery:

• 1× WisBlock RAK12002 RTC Module