I have started working with ESP8266 with NodeMCU. Now I switched to the single ESP8266 E12-Module.
My problem ist now, that I aren't able to write data on the Chip. I use the "CP2102"-Module as USB-to-UART-Interface. I'm sure, that I wired the Chip properly.
Some strange thing is, that the TX-LED is only flashing (if I try to load some code to the Chip), If I connect the RESET-Pin to Ground.
What have I done?
- - external power supply with 3A
- GPIO1 and GPIO0 to GND
- EN/CH to 3,3V
- TX and RX connected with USB-to-UART-Interface
Ps.: Arduino-IDE shows following error-code:
"esptool.FatalError: Failed to connect to ESP8266: Timed out waiting for packet header"