esp-07 connection

Projects General Guidance
1

Hello ,
I'm trying to connect the ESP-07 module to a FTDI cable without any success

I have look here
https://tttapa.github.io/ESP8266/Chap02%20-%20Hardware.html

and also here

the connection I made are
ESP07 -- FTDI cable

GND -- GND
GPIO15 --GND
VCC--3.3V
Ch_En - 3.3V
RST -- 3.3V
TX - RX
RX-TX
GPIO0 - DTR

did I miss something ?
I ahve also try toconnect the ESP07 to external power 3.3V -
still can't see nothing

any idea wht is wrong?

the red led is on so the power is OK

what can I check?

Thanks ,

2

the red led is on so the power is OK

Pretend that we have no idea which red LED you are talking about. Because we don't.

My FTDI cable doesn't have any LEDs. It expects me to connect it correctly.

Post a link to the ESP you are connecting it to and a schematic showing how you think you wired it and a picture showing how you actually wired it.

3

the red led on the ESP -07

and the connection are as I wrote above
GND -- GND
GPIO15 --GND
VCC--3.3V
Ch_En - 3.3V
RST -- 3.3V
TX - RX
RX-TX
GPIO0 - DTR

I did teh setting from this wwebpage

4

david1234:
I'm trying to connect the ESP-07 module to a FTDI cable without any success

Please explain exactly what you mean by "without any success".

david1234:
still can't see nothing

What are you expecting to see? Where are you expecting to see it?

5

I never used the DTR when programming an ESP8266 using a USB to TTL converter; only used it when programming Arduino Pro Mini. I've since switched to FTDI devices with everything integrated and a convenient female 6-pin socket that connects directly to the Pro Mini, so that was it for the DTR.

To program my ESP projects I use a similar USB to TTL converter. I usually only connect TX, RX and GND, but if the device is not powered by itself also 3.3V of the converter to Vcc. Remember to set your converter to 3.3V, the ESP doesn't like 5V signals.

After that set the ESP in program mode (boot with GPIO0 pulled low - a push button is very useful here - if you don't start in boot mode you won't get any programming done, ever) and program away. Do set up OTA programming, it tends to make life a lot easer.

6

I have connected like you said
tx\rx\gnd and en external 3.3V (to be sure)
but when I open the serial monitor I don't see nothing
I have try to change tx to rx (to be sure ) - still don't see nothing
tried all rate 2400-115200
nothing

but again on the ESP-07 there is a red led on ?

what else can I do to check where is the problem?

Thanks ,

7

It is normal to see nothing when you haven't programmed anything on the chip in the first place. I guess that LED is the power LED.

Connections as described are correct and complete.

Make sure you get into program mode (GPIO0 pulled low upon boot), then upload Blink. I suppose the ESP-07 also has an on board LED connected to GPIO2, just like the ESP-12 modules. Remember to set your IDE to the correct board.

I don't know that specific module, but have been working a lot with ESP-12 modules and they should behave the same (same processor on board). Main difference is the PCB antenna of the ESP-12.

8

but there is something on the board...
this is why I'm surprise..

this is the setting I have on the arduino IDE
(as I remember)
is this good?

I'm connecting to the ESP-07 with USB-FTDI cable

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9

Port is greyed out. That tells you there's no connection between computer and USB adapter.

10

I know , I print the screen without connecting the cable
I have connected the cable now -
And all other setting are OK?

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11

Should be fine. As long as your device is in program mode it should accept the upload.