ESP32 with Alkaline Batteries
Posted: Thu Jun 20, 2019 12:53 pm
Hi all,
Anyone here has developed or worked on applications for the ESP32 using standard alkaline batteries? I was originally intending to use a CR2032 lithium battery for an ESP32 project, but read on the forum that this is not possible given that the ESP32 requires a large current for Wifi. Hence I am thinking of switching over to using standard Alkaline (AA or AAA) batteries.
My application only requires the ESP32 to wake up around 5 times a day, connect to Wifi, read a sensor, publish to a MQTT broker, disconnect and go to deep sleep until the next event occurs.
What would be the best combination in this case? Using 2 AA or AAA batteries to give 3V and use a boost converter to get 3.3V or using 3 AA or AAA batteries to give 4.5V and using a LDO to drop the voltage down to 3.3V? Or are there other recommendations? I want to avoid using rechargeable lithium batteries in my application.
Thanks!
Anyone here has developed or worked on applications for the ESP32 using standard alkaline batteries? I was originally intending to use a CR2032 lithium battery for an ESP32 project, but read on the forum that this is not possible given that the ESP32 requires a large current for Wifi. Hence I am thinking of switching over to using standard Alkaline (AA or AAA) batteries.
My application only requires the ESP32 to wake up around 5 times a day, connect to Wifi, read a sensor, publish to a MQTT broker, disconnect and go to deep sleep until the next event occurs.
What would be the best combination in this case? Using 2 AA or AAA batteries to give 3V and use a boost converter to get 3.3V or using 3 AA or AAA batteries to give 4.5V and using a LDO to drop the voltage down to 3.3V? Or are there other recommendations? I want to avoid using rechargeable lithium batteries in my application.
Thanks!