Thursday 30 July 2009

MCU controlled Bluetooth automation with infrared sensor

The whole process of the circuit, is to control the remote device using the 1st board (controller board), to switch a certain load on/off vice versa. Figure 1 explains how to use the controller and figure 2 explains how it functions according to the user. The user will enable the switches for the loads, then the mcu will give commands to the Bluetooth serial, then the remote device will receive the data, to enable the load

The microcontroller used is 0822 zilog encore! 8k series (soic,28pin) as shown on the figure. Is a programmable microcontroller, the functions used are the GPIO and the UART of the chip. GPIO is used on led indicators, and the UART is used for giving and reading AT COMMANDS to control the Bluetooth device.




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