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Micro controller
The main micro controller is STM32 which has the specification of high-speed embedded memories, DMA and an extensive range of system functions, enhanced I/Os and peripherals. The devices offer standard communication interfaces, one 12-bit ADC with up to 19 channels, a low-power RTC, an advanced control PWM timer, five general-purpose 16-bit timers, two basic timers .
Motor drive module
2 tank-type tracked wheels with the motor drive module were employed for the movable carrier of the electric heating radiator. The carrier was controlled by the IO port of STM32 G0. The key chip of motor drive module was L298N,and the maximum output power is 25W. The speeds of the wheels were tuned by pulse width modulation (PWM) technology where the duty cycles of the driving pulses were modulated by timers.
HC-06 Bluetooth module
The serial port 1 serves as a data channel and connect the HC-06 Bluetooth module through the serial port pins. The baud rate is 9600 in the slave mode.
Timer for radiating
The function of the timer for radiating has implemented. For example, the users can set the timer when they go out in advance. When they back home, the pre-warm function will make them comfortable. The function was implemented by embedded basic Timer 7 of STM32 G0. STM32 timers are divided into 3 categories, including advanced timers, general timers and basic timers.
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IEEE/ICACT20210218 Slide.07
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