ESP32 Forum

Hi,

When I compare ESP-WROOM-32 datasheet with ESP-WROOM-02 datasheet, the specs looks almost identical: average current consumption 80 mA, sensitivity -91dBm @ 11 Mbps. But when I test real modules, their performance differs drastically. Running Arduino WiFiScan sketch on ESP-WROOM-32 and on ESP-12F, I can see the following:

- ESP32 module consumes about 120 mA, ESP8266 module consumes less than 70 mA
- ESP32 module can see 5...10 WiFi networks, ESP8266 module can see 14...18 WiFi networks.

It looks like ESP32 module performance is significantly worse than ESP8266. Why?

Regards

pontificator wrote:Hi,

When I compare ESP-WROOM-32 datasheet with ESP-WROOM-02 datasheet, the specs looks almost identical: average current consumption 80 mA, sensitivity -91dBm @ 11 Mbps. But when I test real modules, their performance differs drastically. Running Arduino WiFiScan sketch on ESP-WROOM-32 and on ESP-12F, I can see the following:

- ESP32 module consumes about 120 mA, ESP8266 module consumes less than 70 mA
- ESP32 module can see 5...10 WiFi networks, ESP8266 module can see 14...18 WiFi networks.

It looks like ESP32 module performance is significantly worse than ESP8266. Why?

Regards

i having problem with ESP32 after uploading sketch in serial monitor I see ascii character ?? Anyone help pls.

after uploading sketch in serial monitor I see ascii character ??

There are several sketches named WiFiScan: for WiFi shield, for ESP8266 and for ESP32. I should upload the sketch for ESP32.

sentu19 wrote:

pontificator wrote:Hi,

When I compare ESP-WROOM-32 datasheet with ESP-WROOM-02 datasheet, the specs looks almost identical: average current consumption 80 mA, sensitivity -91dBm @ 11 Mbps. But when I test real modules, their performance differs drastically. Running Arduino WiFiScan sketch on ESP-WROOM-32 and on ESP-12F, I can see the following:

- ESP32 module consumes about 120 mA, ESP8266 module consumes less than 70 mA
- ESP32 module can see 5...10 WiFi networks, ESP8266 module can see 14...18 WiFi networks.

It looks like ESP32 module performance is significantly worse than ESP8266. Why?

Regards

i having problem with ESP32 after uploading sketch in serial monitor I see ascii character ?? Anyone help pls.

I've experienced the same issue. This is kind of buggies should be fixed. make sure you use 115200 (stock setting) Baud for serial monitor ("make menuconfig")

Same problem here. I hope it gets fixed asap.

Reapeating the same question:

Why ESP-32 consumes 120 mA average? It should consume 80 mA as per documentation. I have checked several development boards, all consume more than promised. All ESP-32 are quite warm.