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- Thu Dec 24, 2020 3:53 pm
- Forum: Chit Chat
- Topic: the difference between ESP-WROOM-02 and ESP-WROOM-02D
- Replies: 5
- Views: 9046
Re: the difference between ESP-WROOM-02 and ESP-WROOM-02D
The U has an antenna connector, the D has a PCB antenna. The antenna network on the 2 is different than the D/U. Also there is an added resistor in series with the TX line on the D/U module. such as gb whatsapp