arduino + esp8266 error

We have a couple of esp8266 modules 8 pin.

We have been able to get them to work with a Webserver and Blink but now when we try to update the firmware we get the following error when uploading:

warning: espcomm_sync failed
error: espcomm_open failed
error: espcomm_upload_mem failed
error: espcomm_upload_mem failed

Here is the pinout. (no resistors)
Arduino UNO - - - esp8266

TX - - - RX
3.3 V - - - VCC -
GND - - - GPIO 0
NONE - - - RESET
3.3V - - - CH_PD
NONE - - - GPIO 2
RX - - - TX
GND - - - GND

We’d like to control and arduino with 802.11 and use Jonny-five

Help please :slight_smile:

esp8226.png