- Wed Dec 02, 2015 10:38 am
#35512
Never power ESP from FTDI usb adapter. Use external 3.3v power source.
-Venkatesh
- Wed Dec 02, 2015 11:32 am
#35516
I am indeed using an external power supply. I have connected 3 AA batteries to my esp8266 board.
I have only connected TX,RX and GND to the pl2303 board.
I have only connected TX,RX and GND to the pl2303 board.
- Fri Dec 04, 2015 5:31 am
#35627
Okay, I finally solved the problem! All I had to do was to reflash the AT firmware.
I used the links provided in this link for the esp flasher tool and the firmware binary file:
www.xess.com/blog/esp8266-reflash/
I had the following setup for flashing my ESP8266-ESP12 test board:
ESP RX to Pl2303-TX
ESP TX to Pl2303-RX
ESP GND to Pl2303 GND
powered my ESP8266, with 3 AA Batteries
Supplied a separate line 3.3V and GND to a breadboard from Arduino connected to my laptops usb port.
Connected GPIO2 and CH_PD to 3.3V
GPIO15 to GND
Placed the jumper(GPIO 0 to GND)
I used the links provided in this link for the esp flasher tool and the firmware binary file:
www.xess.com/blog/esp8266-reflash/
I had the following setup for flashing my ESP8266-ESP12 test board:
ESP RX to Pl2303-TX
ESP TX to Pl2303-RX
ESP GND to Pl2303 GND
powered my ESP8266, with 3 AA Batteries
Supplied a separate line 3.3V and GND to a breadboard from Arduino connected to my laptops usb port.
Connected GPIO2 and CH_PD to 3.3V
GPIO15 to GND
Placed the jumper(GPIO 0 to GND)
- Wed Dec 09, 2015 4:39 pm
#36094
You have to watch the use of delays with the esp. It was easy with an arduino, but the esp needs to run the wifi stack in the background. If it cannot the internal watchdog auto resets the chip. Use the Ticker library to do an interrupt driven "delay" and yield() to the SOC to allow it to run.
Hope this helps.
Hope this helps.
