the difference between ESP-WROOM-02 and ESP-WROOM-02D

[YFujisawa]

Hello everyone.
Please tell me the difference between ESP-WROOM-02 and ESP-WROOM-02D.
It is said that ESP-WROOM-02D improved the performance of wireless, but how did it improve specifically?

[neilwalker]

I see that there's a price difference too: 02D has a higher price everywhere on the market. On the U and D modules, there is also an additional resistor. There's also an archived sample with the ESP-WROOM-02D and ESP-WROOM-02U writemyessay review if you are interested.

[Hongron]

It is a good and amazing article. Your information is very useful for me and for others. Thank you so much.
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