ESP-01S flashing

Hi, I bought bunch of ESP-01S for some project I started to flash them - so far two of them but none seems to be working properly. This is log from flashing - all seems to be OK:


RAM:   [====      ]  41.3% (used 33868 bytes from 81920 bytes)
Flash: [=====     ]  47.1% (used 482777 bytes from 1023984 bytes)
Building .pioenvs/esp01a/firmware.bin
esp8266_copy_factory_bin([".pioenvs/esp01a/firmware.bin"], [".pioenvs/esp01a/firmware.elf"])
======================== [SUCCESS] Took 127.65 seconds ========================
INFO Successfully compiled program.
esptool.py v4.6.2
Serial port /dev/ttyUSB0
Connecting....
Chip is ESP8266EX
Features: WiFi
Crystal is 26MHz
MAC: 80:7d:3a:02:07:0f
Uploading stub...
Running stub...
Stub running...
Changing baud rate to 460800
Changed.
Configuring flash size...
Auto-detected Flash size: 1MB
Flash will be erased from 0x00000000 to 0x00076fff...
Compressed 486928 bytes to 342719...
Wrote 486928 bytes (342719 compressed) at 0x00000000 in 8.5 seconds (effective 456.2 kbit/s)...
Hash of data verified.

Leaving...
Hard resetting via RTS pin...
INFO Successfully uploaded program.
INFO Starting log output from /dev/ttyUSB0 with baud rate 115200

After that when I remove the flashing jump wire and off/on it back again nothing is happening → Logs are empty nobody is trying to connect to Wifi.

This is my config:

esphome:
  name: esp01a
  friendly_name: ESP01a

esp8266:
  board: esp01_1m

# Enable logging
logger:

# Enable Home Assistant API
api:
  encryption:
    key: "u1acfodxF/4kBo5/0xLAgod27t9auFoHV7r+YnReYLE="

ota:
  password: "64b13542e766eff0f3bf24d1ab3318e8"

wifi:
  ssid: !secret wifi_ssid
  password: !secret wifi_password

  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: "Esp01A Fallback Hotspot"
    password: "dkI5zRBkpWSH"

captive_portal:

Any suggestion please? I already have one ESP-201 working so kind of know what Im doing :slight_smile:

You should check the power supply - it may not be providing enough current to power on the Wifi module.

You can also look at the serial logs to identify the source of the problem. You can set the log level to debug to get greater details.

Thanks for reply, I found that this USB module is good for programming but the ESP is not starting at all maybe the voltage dont know:
image

When I use proper power supply it is working as expected :wink:

Thanks @sachinss for your hint …

I got another Programmer:
grafik
On this one you can clearly see the big Capacitor to help providing Power during Wifi Operations. Maybee, thats why it does not work with your Programmer.

Vice versa, on my Porgrammer I had to attach the Programm and Reset Buttons my self.

Right, thanks → I managed to get this one as well and it is also working.