ESP-WROOM-02 Hardware and Firmware Release Information

lucyelectric
Posts: 2
Joined: Tue Aug 03, 2021 8:20 am

ESP-WROOM-02 Hardware and Firmware Release Information

Postby lucyelectric » Tue Aug 03, 2021 11:16 am

Hello,
We have used many ESP-WROOM-02 WiFi Modules since about 2015, (approx 1500+ modules).

Recent batch purchases have revealed a new style module package (well at least the printing on the can is quite different) and also what we believe to be new Firmware revision being reported.

The Firmware version on earlier units is reporting as: 1.5.3.0
On the newer purchased modules we are seeing a version of 1.6.2.0 being reported.

We have some connection issues with the newer module, where can I find details of the Firmware release notes detailing the Firmware changes made.
Also I would like to be able to confirm if there have been any Hardware changes to the module.

Attached: I have attached 2 photos, for the older style and newer style module packages.

Many thanks for your help in advance,
Phil.
Attachments
New_WiFi_Module.jpg
Newer style module package
New_WiFi_Module.jpg (226.64 KiB) Viewed 1561 times
Old_WiFi_Module.jpg
Older style module package
Old_WiFi_Module.jpg (211.13 KiB) Viewed 1561 times

chegewara
Posts: 2174
Joined: Wed Jun 14, 2017 9:00 pm

Re: ESP-WROOM-02 Hardware and Firmware Release Information

Postby chegewara » Thu Aug 05, 2021 9:32 am

1. The module is esp8266 and forum is esp32
2. It looks like the 1st module is original espressif and 2nd is some clone, which may be worse quality

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