![Designed a circuit to automatically switch the power supply from the two power sources (nothing designed to). | kohacraft's blog Designed a circuit to automatically switch the power supply from the two power sources (nothing designed to). | kohacraft's blog](https://en.kohacraft.com/wp-content/uploads/65B9AA85-41DB-4712-97FE-350275DD93D7.jpeg)
Designed a circuit to automatically switch the power supply from the two power sources (nothing designed to). | kohacraft's blog
![WEMOS WiFi & Bluetooth Battery ESP32 development tool ESP32 battery esp8266 ESP WROOM 32 ESP32 good|Integrated Circuits| - AliExpress WEMOS WiFi & Bluetooth Battery ESP32 development tool ESP32 battery esp8266 ESP WROOM 32 ESP32 good|Integrated Circuits| - AliExpress](https://ae01.alicdn.com/kf/H5b598f4ce37b4904a547e24194f4cea5q.jpg)
WEMOS WiFi & Bluetooth Battery ESP32 development tool ESP32 battery esp8266 ESP WROOM 32 ESP32 good|Integrated Circuits| - AliExpress
![Make a power supply circuit (step-up/step-down DCDC converter) to run ESP32 on about two batteries. | kohacraft's blog Make a power supply circuit (step-up/step-down DCDC converter) to run ESP32 on about two batteries. | kohacraft's blog](https://en.kohacraft.com/wp-content/uploads/DF792CCD-C43D-41C1-B2AE-AE30CEEB167D.jpeg)
Make a power supply circuit (step-up/step-down DCDC converter) to run ESP32 on about two batteries. | kohacraft's blog
![power supply - Arduino Esp32-dev powering with 9V battery connected to pins - Electrical Engineering Stack Exchange power supply - Arduino Esp32-dev powering with 9V battery connected to pins - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/59Yan.jpg)