User's Manual

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7. Reference Design
In addition to the standard serial port，the peripheral MCU also need to provide two GPIO pins
to connect with the GPIO4 pin and the RST pin of the WIFI module respectively,when the WIFI
module works properly,the GPIO4 pin will keep outputting message of dog feeding,if the
peripheral MCU did not receive the message,the module will reset and restart through pulling
down the RST pin by the other GPIO pin.
If the peripheral MCU uses power source of 5V,it needs to add a level switching circuit in the
connection of the serial port and the related circuit.
The module needs a large current about 250mA when transmitting data,please ensure that the
power source can provide sufficient current.
WIFI MODULE
Peripheral MCU