Comparing revisions for MiBluetoothTempESPHome
- [7929] 2022-05-27 01:11:29 by ZorrUno (unregistered user)
- [7931] 2022-05-27 01:15:24 by ZorrUno (unregistered user)
Additions:
-- I couldn't wait for some Dev boards from China and Jaycar had some half price ESP32 boards so I grabbed a couple to play with
-- Getting the serial usb port for these working in ubuntu was annoying, I suspect however in windows you'd need to install the driver. The link I used to troubleshoot is below as errors show up in logs for BRLTTY. This is apparently what unix uses to gain access to serial ports by users.
-- These were a problem (I had a couple of esphome based projects I wanted to play with) as when I connected them, the logs showed they wouldn't connect to wifi. Logs showed this:
There is a bit of a jumble of information in there, but I found a solution that if I pulled the 0 pin to ground via a resistor (they suggested 330 Ohm, but currently I have about 480Ohm) it seems to boot and connect to wifi stably. Time will tell. Also pulling 0 low was often easier to flash the firmware when needed. Having the resistor off seems to not work reliability... except when connected via USB and serial logging. Booting just with 5V (from a battery pack and microUSB for testing) seems to require the resistor. Very confusing.
-- Getting the serial usb port for these working in ubuntu was annoying, I suspect however in windows you'd need to install the driver. The link I used to troubleshoot is below as errors show up in logs for BRLTTY. This is apparently what unix uses to gain access to serial ports by users.
-- These were a problem (I had a couple of esphome based projects I wanted to play with) as when I connected them, the logs showed they wouldn't connect to wifi. Logs showed this:
There is a bit of a jumble of information in there, but I found a solution that if I pulled the 0 pin to ground via a resistor (they suggested 330 Ohm, but currently I have about 480Ohm) it seems to boot and connect to wifi stably. Time will tell. Also pulling 0 low was often easier to flash the firmware when needed. Having the resistor off seems to not work reliability... except when connected via USB and serial logging. Booting just with 5V (from a battery pack and microUSB for testing) seems to require the resistor. Very confusing.
Deletions:
==CH340 Serial-USB in Ubuntu==
Getting the CH340 based serial working in ubuntu was annoying, I suspect however in windows you'd need to install the driver. The link I used to troubleshoot is below as errors show up in logs for BRLTTY. This is apparently what unix uses to gain access to serial ports by users.
==Wifi Issues==
These were a problem (I had a couple of esphome based projects I wanted to play with) as when I connected them, the logs showed they wouldn't connect to wifi. Logs showed this:
There is a bit of a jumble of information in there, but it appears it is a voltage issue when using the UART. I found a solution that if I pulled the 0 pin to ground via a resistor (they suggest 330 Ohm) it seems to boot and connect to wifi stably. Time will tell. Also pulling 0 low was often easier to flash the firmware when needed. Having the resistor off seems to not work reliability.