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martin-ger / esp_mqtt

MQTT Broker/Bridge on the ESP8266
MIT License
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Change Wifi AP name in user_config.h has no effect #37

Closed bastianhjaeger closed 6 years ago

bastianhjaeger commented 6 years ago

Branch: Master Commit: 6964c0eb501769f58632ce72544b6ebc9e31f4b9 Device: Sonoff switch

According to the "Usage" section of the README.md the default WIFI AP name can be changed by editing file user_config.h. But when I change line 9 in user/user_config.h, it has no effect after flashing the device. I seems like the configurations are stored on some not flashed eeprom. Is this true? How can I overwrite those configurations?

When I change e.g. printf's in file user_main.c I see changes. So my tool chain and flashing works.

martin-ger commented 6 years ago

The current config is stored in flash after first boot. To change it back to the values from user_config.h enter reset factory on the command line (telnet port 7777 or serial port 115200 bps) or clear the flash mem at 0xc000.

bastianhjaeger commented 6 years ago

Hi Martin,

Thanks for the quick reply.

But when I change the file user/user_config.h line 9-10 to e.g. #define WIFI_AP_SSID "Banana" #define WIFI_AP_PASSWORD "Banana" and then flash the device by make clean && make && make flash the AP name is still the same. I need to run the cmd reset factory on every flashed device by hand to make the AP name change? Furthermore the pw is still not required. What did I wrong here?

martin-ger commented 6 years ago

Hi,

no, you do not need that on each new device. Only, if you had flashed it before with the sw with other default values or if you saved your own config, if will remember that and normal flashing of the esp_mqtt binaries doesn't overwrite these values.

If you want to make sure, that every flashed devices gets the new default, change #define MAGIC_NUMBER 0x015005fd in config_flash.h to a random other value. This marks the config sector as valid.

If you want to have a WPA-PSK pw-protected AP on init, also change in "config_flash.c": config->ap_open = 1; to 0. In this file you also find the init of all other defaults.

bastianhjaeger commented 6 years ago

Good. This works for now. I will work with this project for a while and maybe you will get some PRs. ;) Great job btw! :)