ESP8266 - CH_PD pin?

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1

Hello,

I am working on connecting my esp8266 module to a FEZ Spider (socket 11 - type PUY).

The odd symptom is when I pull the pin CH_PD high (3.3v) the FEZ Spider stops responding
to all commands when connected to the debugger. It looks like it powers down.
If I leave the pin to float the esp8266 seems to power up fine (the power button is illuminated)
I have read that the esp8266 draws high current so I have tried this with all other devices disconnected.

I have flashed netmf 4.3 to the spider and it is working just fine with other devices.

Any ideas?

thanks

I should mention I am not using Gadgeteer .

2

Are you just powering the board through the USB port are have you also got an external power supply as well?

3

Just the USB.

You suspect lack of power thru USB?

that’s a good point, I will try an external supply and check it out.
thanks!

4

I’ve never had to use an external power supply when using an ESP8266 module ([url]https://www.ghielectronics.com/community/forum/topic?id=18650[/url]).

5

It’s a long shot but something I’ve seen in the past so best to rule it out…

6

Here is a partial schematic for my module. Maybe it will help.