I searched in Internet lot and huge confusion is happening. That is deadly for me . We need to use it for battery operated. Found many dev kits from different manufacturers. But it is impossible to read all ESP controller data sheets.
Why is it impossible? It’s hard work for sure but part of the job…
Most ESP32 won’t do a good job if you require both WiFi and BT as they use the same antenna. So it will be up to your code to use one or the other alternatively but not both can work at the same time.
The firebeetle ESP32 is pretty good when it comes to low power mode.
Get an external Lora Module you can control
Make sure you can power off anything that’s not needed
If power is critical you might need to build your own PCB
So how, if its impossible, can anyone in the forum provide the information ?
The title of your post suggests you want to know the power consumption with WiFi, Bluetooth and LoRa activly transmitting, is that the case or were actually interested in the sleep current ?
You will get better answers if you describe the actual project.
Actually we may not use bluetooth , We ll use LoRa and Wi-fi and sending the data via gateway into cloud , sending it 50 times a day and will monitor on dashboard. And we need battery powered application . Which ESP variant is best suitable for this appilcation?
When you say ESP do you mean ESP 12 versus ESP32 versus S3 etc or do you mean which ready made board ?
ESP32 Ready made boards with LoRawan and Wifi
ESP32 - Wroom vs ESP32 S1 vs s2vs s3(S series) Vs C series vs Esp32 Wrover
Do you mean;
A board that can be used for LoRaWAN ?
or
A board that has its own LoRaWAN firmware ?
That board with Wi-fi module and LoRa module embedded in it --- For example LoRa chip RFM 95 embedded in it . Some dev kits boards are available like this , the issue is the power consumption . Whatever ESP32 will have leas power consumption we will go for that.
The following series i found on Espresif System website --- check snapshot
These are 8 series currently running in market.
Which one consumes least current
I never explored the various models. I've only used the TTGO LoRa32 ESP32 v2 (with a small OLED) but not in a low power project.
I am not getting the datasheet of this . Only schematic i got everywhere
Your asking the wrong question really.
What the deep sleep current of a bare bones ESP32 is versus a barebones ESP32-C3 is not really the issue.
You have said you want a complete module with LoRa device. However all the stuff added by the manufacturer of the module, regulator, sensors, USB to serial stuff, has a very significant impact on deep sleep current.
There are very few ESP32 based modules, with or without LoRa, that are designed for very low deep sleep current. The mentioned Firebeetle is an example.
I would suggest you need to design your own ESP32 (of whatever variant) based board with LoRa module and an appropriate low IQ regulator. You can get sleep current down to circa 25uA that way.
agreed
ready made modules with all the bells and whistles don't perform well with sleep modes and you can't always control what's going on
so that would be my recommendation:
1 Like
This topic was automatically closed 180 days after the last reply. New replies are no longer allowed.