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[ESP8266][ESP-07] Is the program preloaded at the factory? LED does not light up.

sq9etc 4200 38
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Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
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  • #31 18481659
    kaczakat
    Level 34  
    In post #3 I wrote you that it is supposed to light the led on the ESP07 when 3.3V is applied regardless of what you have uploaded. Invest in a bottle of RF800 flux with a brush in the cork, for an amateur this is for years, and it doesn't leave such marks on the board and catches everything nicely, what possibly appears is easier to wash off with alcohol.
    Helpful post? Buy me a coffee.
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  • #32 18486662
    sq9etc
    Level 12  
    I corrected the soldering of the goldpins to the adapter board and the module started. It has firmware loaded that supports AT commands, but some old ones, as most of what I found in the documentation is not recognised. The module has created a Wi-Fi network AI-THINKER_xxxxxx.
    Thanks to everyone for their help.
  • #33 18486764
    khoam
    Level 42  
    Perhaps check the flash size on this ESP. A version of the latest AT firmware would be good. You can check the size with esptool. You probably have this script installed in the same directory as the flasher. Under Linux I check it like this:
    Code: Bash
    Log in, to see the code
    .
    sq9etc wrote:
    Module created Wi-Fi network AI-THINKER_xxxxxx.
    .
    Very old AT firmware version.
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  • #34 18488141
    sq9etc
    Level 12  
    When botting, it presents itself as follows:
    Code: text Expand Select all Copy to clipboard
     ets Jan  8 2013,rst cause:2, boot mode:(3,7)

load 0x40100000, len 1856, room 16 
tail 0
chksum 0x63
load 0x3ffe8000, len 776, room 8 
tail 0
chksum 0x02
load 0x3ffe8310, len 552, room 8 
tail 0
chksum 0x79
csum 0x79

2nd boot version : 1.5
  SPI Speed      : 40MHz
  SPI Mode       : DIO
  SPI Flash Size & Map: 8Mbit(512KB+512KB)
jump to run user1 @ 1000

rf cal sector: 249
rf[112] : 00
rf[113] : 00
rf[114] : 01

SDK ver: 1.5.4.1(39cb9a32) compiled @ Jul  1 2016 20:04:35
phy ver: 972, pp ver: 10.1

˘ˆhhńi×(¦)ń+ůkPx\Ŕtĉň˘Ŕj§l 
    .

    It follows that it has 8Mb.
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  • #36 18488485
    sq9etc
    Level 12  
    I will try to upload this, but only for educational purposes. Ultimately I would like to have a fw. there that will allow me to upload my own programs to the module.
  • #37 18488513
    khoam
    Level 42  
    Then I misunderstood you, at the beginning of the thread you wrote about AT commands. In that case, there is no point in you messing around with AT firmware and it's better to start straight away with your own programs - you don't need any additional firmware for that.
  • #38 18488519
    sq9etc
    Level 12  
    I wrote about AT because I was checking if it works at all and what it has uploaded.
    So am I to understand that if I want to write something in the Arduino IDE and upload it to the module, I don't need the fw. that is currently uploaded or any other?
  • #39 18492501
    khoam
    Level 42  
    sq9etc wrote:
    I mean, if I want to write something in the Arduino IDE and upload it to the module, I don't need the fw. that is currently uploaded or any other?
    .
    Not needed. The code that will upload from the Arduino IDE to the ESP will already be fimware.
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Topic summary

The discussion revolves around an ESP8266 ESP-07 module that fails to light up its LEDs or respond to AT commands after being powered. Users suggest that the module should light up a red LED upon power application, indicating it is functioning. Various troubleshooting steps are discussed, including checking the serial communication speed (notably 9600, 74880, and 115200), ensuring proper connections, and verifying the firmware. The author experiences issues with flashing the module, receiving timeout errors, and ultimately discovers that poor soldering on the Vcc pin was the cause of the initial failure. After correcting the soldering, the module successfully powers on and creates a Wi-Fi network, although it runs an outdated AT firmware version. Users recommend updating the firmware or directly programming the module using the Arduino IDE without needing the existing firmware.
Summary generated by the language model.
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