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How to upload firmware manually in Wi-Fi Switch Module
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Follow the steps given below
1.
Connect the Wi-Fi switch module to PC via CP2102
Wi-Fi Switch Module
CP2102(USB to UART)
VCC
5V
GND
GND
ESP_RXD
TXD
ESP_TXD
RXD
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Note: Switch the module in Program Mode and for this, First short
the both pads of “GP” then
plug the CP2102 to PC.