gerardwr wrote:I have an ESP-01 running, and today I got an ESP-07 (from Banggood) "in". I just started connecting it.
Maybe my fresh ESP-07 experience helps, maybe not:
- On my ESP-7 (from Banggood) the Power LED is RED (not BLUE), it lights up when the power lines are connected (duh!)
- When powered on, and you then connect CH-PD to Vcc, the BLUE LED flashes shortly. On the ESP-01 the Blue led is connected to the ESP-TX line. It flashes because the bootloader is sending serial output on the ESP-TX line, guess it's the same for the ESP-07.
- If you don't see the BLUE LED flashing with these 3 connections, I guess you're in real trouble.
<snip>
That's all the help I can give you right now, now returning to further connecting my own ESP-07. Nice board!!
Update 10-1-2015
-----------------------
I just soldered 2 8-pin 0.1 headers to my ESP-07 (from Banggood with RED power LED) to be able to use it in a breadboard.
This is what I did:
- place the 2 8-pin 0.1" headers in the breadboard
- place the ESP-07 on the headers (I used PCB up for easier access to the pins for the soldering iron)
- bend the pins from the header to handle the 2mm to 0.1" difference
- solder the pins to the pads
Was easier than I expected, and the construction feels "solid"
Have a look at the (horrible) picture:
After connecting the ESP-07 booted OK, connections to a PL2302 USB-to_serial adapter are:
Code: Select allPL2303 ESP
3.3V Vcc + CH-PD
GND GND + GPIO15
TX RX
RX TX
The LOG below show some commands and output (using Coolterm @9600baud + CRLF)
Code: Select allAT+RST
OK
$J.
..S:
...]?.HW...
rc...F..Q..HH....5
AT+GMR
0020000903
compiled @ Dec 15 2014 19:43:31
AITHINKER-20141206
OK
By setting GPIO0 to GND and then RESET I successfully flashed another firmware on my ESP-07.
So my ESP-07 behaves "normal".
Unfortunately this probably doesn't help the people with problems with the ESP-07 with the BLUE power LED