C++ implementation of the AskSin protocol

• easy configuration of the device channels by using templates
• direct eeprom access for the channel data
• AES signature support
• Supported MCU:
  • ATMega328
  • ATMega32
  • ATMega644 (Bobuino Pinout is highly suggested)
  • ATMega1284 (No OTA Bootloader support, yet)
  • STM32F1

• EnableInterrupt
  • For ATMega644 and ATMega1284 the PR #49 needs to be included
• Low-Power
  • For ATMega644 and ATMega1284 the PR #57 needs to be included

• Sensor Base Library
• DHT11/DHT22/AM2302/RHT03
• SHT10
• TSL2561
• BMP085/BMP180
• BMP280/BME280
• BH1750

To enable the AES signature support USE_AES needs to be defined. In addition the default key and the default key index has to provided with HM_DEF_KEY and HM_DEF_KEY_INDEX.

#define USE_AES
#define HM_DEF_KEY 0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0a,0x0b,0x0c,0x0d,0x0e,0x0f,0x10
#deifne HM_DEF_KEY_INDEX 0

In FHEM you can get the key from the hmKey, hmKey2, hmKey3 attributes of the VCCU. The index is the key number multiplied by 2.