I'm trying to use the ESP-ADC DIL18 Modul (based on the ESP8266EX) together with the DHT22.
I've implemented the firmware with the latest Arduino IDE V1.6.4 for the ESP8266 (from https://github.com/esp8266/Arduino) and now the upload fails all the time with the following error message:
warning: espcomm_sync failed
error: espcomm_open failed
the ESP-ADC is connected with 3x 1,5AA batteries and the voltage is regulated via the LD1117AV33 to 3,3V. I have also used the 9V batteries or the 5v output from my USB2TTL-converter (with CP2102), but nothing happend.
The ESP modul is currently connected as follows to upload the software:
USB/TTL <-> ESP-ADC
TxD <-> RxD
RxD <-> TxD
RST <-> RST
DTR <-> GPIO 0
Battery <-> ESP-ADC
3.3V <-> VCC
3.3V <-> CHP
GND <-> GND
GND <-> GPIO 15
Does someone know, why the modul isn't booting? or can some tell me, how I can check that the module is booting correctly?
any help highly appreciated!
best regards
Joerg Weiss