ESP32-C3-wroom vs ESP8685-wroom

[ClaudioCnd]

My company has interest to enter in the world of Matter, but we don't understand the differences (apart from the flash memory) between the ESP32-C3-wroom and the ESP8685-wroom, and in general between the ESP32-XX series and the relative ESP-8XXX series of products. Can anyone help us to better understand?
In any case, both ESP32-C3-wroom and ESP8685-wroom are compatible with Matter?
Thank you.

[ESP_krzychb]

Hi ClaudioCnd,

ESP8685 chips have flash inside the chip package and smaller number of pins exposed so the chip package and the modules are smaller compared to ESP32-C3 modules. There are couple of ESP8685-WROOM module variants and for exact details and comparison I would suggest checking the Product Selector.

See an example of comparison below.

esp32-c3-module-vs-esp8685-module.PNG (75.65 KiB) Viewed 4164 times

Both ESP32-C3 and ESP8685 are Matter compatible.

[bidrohini]

ESP32-C3-wroom has 15 GPIO pins and 4MB flash. ESP8685­-WROOM­-06 has two variants. It can be 15 or 5 GPIOs. The flash can be either 2 or 4 MB. ESP32-C3-wroom can have on­board PCB antenna or external antenna connector. ESP8685­-WROOM­-06 has On­board PCB antenna or external antenna connector.