Connecting ESP32 to an external power source

Other Hardware 3rd Party Boards
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Please I just got this ESP32 WROOM 32D, I wish to know which pins to supply with a 5V without using the USB and also how to how to connect a push button that will have same function as the EN and BOOT buttons. Thanks

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Probably take this to Paid Jobs as with your other topic. What's next, bitcoin mining? : )

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Hmm you seem to be in bitcoin mining. So connecting an esp is bitcoin mining huh?

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Connect 5V between Vin and GND
Connect a pushbutton between EN and GND
Connect a pushbutton between GPIO0 and GND

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Just connecting the ESP32 dots. You went from "newbie" to "final year project" to "jobs and paid" to MCU design. Your story is evasive.

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I have tried the same with my ESP-Wroom, have models wieth 30 and 38 pins. For both i did not find a way to put 5V on any of the pins. I have made an USB-cable with solder-cables on one side, was able to power it with one Lithium-cell by a electronic that does stepup and charging.

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The 5volt/USB power input is commonly called Vin.
Any other pin can only tolerate 3.3volt.
Leo..

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Thats clear. But the Pin on these cheap Ali-Express-Boards gives 5 Volts, but can not be sourced on this pin. The image on the post is taken from Random-Nerds Webpage. I asume that the thread-starter has a cheap chinese Board which can not be sourced on this pin.

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Two oddly specific, similar desires... Standalone ESP with BOOT and RESET (jtag request should be soon). Help me assess the correctness of the task

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Vin connects to a supply rail.
You can use it to supply to or to draw power from the board.
There is usually a USB protection backflow protection diode between USB 5volt and Vin.
Leo..

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Thank you sir, if I get you right I can connect a 5V supply to Vin and GND.

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That is correct

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Thank you. No pull resistor needed ??

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You mean for the pushbuttons?

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Yes I use same board as in the picture above

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The external pushbuttons will be in parallel with the onboard pushbuttons which already have pull-ups, so no need for external pull-ups.

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Thank you sir, let me give it a try

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If I use 9V battery and convert to 5V using the L7805 regulator and connect outputs to Vin and GND will they be any problems ?

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If your circuit design is correct, then the only possible problem is that the battery won't last long depending on how you use the ESP.

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Will the wifi function work properly ?