which is somewhat complex
Door lock and access control systems
The output of TSOP17XX receivers can be directly connected to a microcontroller or microprocessor for further processing
ACS712 Official Datasheet (Allegro MicroSystems)
ADC0831 8-Bit Analog to Digital Converter IC
ATtiny45 AVR Microcontroller 12v which is somewhat complexATtiny45 AVR Microcontroller 8 Bit AVR 8 Pin The ATtiny45 is a compact 8 bit AVR microcontroller from Microchip (formerly Atmel), featuring 4KB flash, 256 bytes EEPROM, 256 bytes SRAM, and 6 I O lines in an 8 pin package. With a 4 channel 10 bit ADC, PWM, and multiple power saving modes, it is ideal for small, low power embedded applications. Key Features 8 pin DIP package with 6 usable I O pins 4KB ISP Flash program memory 256 bytes EEPROM, 256 bytes