ESP8266 vs. ESP32 on Battery Power
Having examined the esp8266 and esp32 power consumption in detail it is time to compare the two.
Esp32
ESP32 Pushing the Envelope
With a few more hacks the esp32 light-sleep power consumption can be pushed to the limit. This post explores the limit and calculates light-sleep mode run-times.
ESP32 Dynamic Frequency Scaling
Dynamic frequency scaling allows the esp32 to go into light-sleep mode when it is idle.
ESP32 Maintaining an Association
The esp32 can also maintain an association with an access point while going to sleep on its own when it is idle. Is this a good alternative to periodically waking up from deep-sleep?
Low-Power ESP32 Boards
Updated 2019-08-25 to include EzSBC’s ESP32-01 Breakout and Development Board
In order to test the low-power performance of the esp32 I had to acquire a few boards and I didn’t really like any of them.
ESP32 Deep-Sleep Connecting to MQTT
Periodically waking up from deep sleep and sending a short TCP message is interesting, but how does the esp32 perform in a real scenario where it communicates with an MQTT server?
ESP32 Deep-Sleep with Periodic Wake-up
The long probing for the access point can be optimized away. In addition, it’s not smart to use open access points, so it’s time to measure the cost of security!
Low-Power Wifi with the ESP32
The esp32 is the successor of the esp8266 by Espressif. It is much faster, has two cores, more memory, more I/O, more everything. Does it also have more low-power Wifi mojo?
