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Topic: The device current problem (Read 195 times) previous topic - next topic

Workaholic

Hi guys. I am working on one device which has two controllers, ble module and ESP32 module.

I am switching on and off esp32 using ble. When I need to send the data, I switch on esp32, send the data and switch off. Then ble goes to sleep mode.

I am using transistor whose collector is connected to EN pin of esp32 to switch on and off the esp32. But Vcc and gnd remain connected.

So, kindly suggest if this setup can really switch off esp32, means no current flow through esp32.

I appreciate your suggestions.

Paul_KD7HB

Hi guys. I am working on one device which has two controllers, ble module and ESP32 module.

I am switching on and off esp32 using ble. When I need to send the data, I switch on esp32, send the data and switch off. Then ble goes to sleep mode.

I am using transistor whose collector is connected to EN pin of esp32 to switch on and off the esp32. But Vcc and gnd remain connected.

So, kindly suggest if this setup can really switch off esp32, means no current flow through esp32.

I appreciate your suggestions.
Are remembering that a single transistor INVERTS the logic of it's base signal?

Paul

liuzengqiang

Just checking, your ble side operates at 3.3V logic?
Serial LCD keypad panel,phi_prompt user interface library,SDI-12 USB Adapter

Robin2

Doesn't the ESP32 include BLE within it?

...R
Two or three hours spent thinking and reading documentation solves most programming problems.

Workaholic

Yes the BLE works on 3.3 V.

I am using another module for ble, and esp is for wifi.

Wawa

I am using another module for ble, and esp is for wifi.
Do you think that will work?
They both use the 2.4Ghz band.
Leo..

Workaholic

Yes. both are not working at the same time. and i guess if they do, it would still work.

Regards,

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