ESP-01 Programming adapter

This weekend i finalized my ESP-01 programming adapter board.

Protoboard for ESP-01 ProgrammingThe circuit is a little bit changed compared to the diagram posted earlier in the post “ESP-01 Module”

I added two terminals for connecting external 3,3V and GND. This change I made because I could not get the wifi function on the ESP-01 module to work, when the module was powered through the USB to TTL board.
On the left you see the board i made.

 

 

 

Protoboard for ESP-01 Programming with modules And here you see the board with the ESP-01 and USB-TTL modules connected.

I have not desided yet, but maybe I will add two terminals for wire connection to the GPIO0 and GPIO2.

 

 


FTDI FT232RL USB to TTL Serial Converter

Today I got my USB to Serial converter.
I need the converter for programming the ESP-01 I received a couple off days ago.
Actually I can program it with the arduino board but don’t want to.

I bought the converter on Ebay from a Chinese seller for the price of approx. $2 so properly not a origianal FTDI chip.
But hey! It works.

FTDI TTL Converter

Here is a picture of the board.

It has serial pin out at the bottom and mini usb on the top.
Along the sides is breakout of other, but not needed chip pins.

On the front it has a jumper setting for 3,3V and 5V.
Nice as ESP-01 is strictly 3,3V