Will this work? UNO + SD card shield + LCD SHIELD + ESP8266

[rmeldo]

Hello,

this is my first post on this forum. Hopefully I can get some guidance or pointers to other threads where my question has been addressed.

I would like to know whether the setup I am thinking of using may be liable to signal interference.

My project is yet another electricity monitor.

The setup is as follows:

1. Arduino uno board
2. SD card + RTC shield (with prototyping area
3. LCD keypad shield
4. A little board which detects the LED pulses from the meter and provide a logic signal which I can log (I have already built this
5. ESP8266 ESP-03 Wi-Fi module mounted on a breakout board

I was thinking of stacking the SD card shield and LCD shield on top of each other. That would make the whole assembly quite neat.

The ESP8266 would fit onto the prototyping area of the SD card shield.

So the ESP8266 would be sitting on top of the SD shield but underneath the LCD shield, and so would be its antenna.

Has anyone else done this before and have there been any problems?

I will test the system on a breadboard first but, since the only way to fit the ESP8266 on the SD shield is to solder the components and the connections I would like to get some feedback beforehand

Attached is a photograph of the SD shield with the ESP on top.

Many Thanks
Riccardo

[cattledog]

Your main question appears to be about the ESP module underneath the shield and I can't speak to that.

There is a potential issue with pin 10 on the lcd keypad shield and the sd card shield. See this thread
http://forum.arduino.cc/index.php?topic=287057.0

[rmeldo]

Thanks Cattledog.

I do not seem to experienced the problem mentioned in that forum. I have tested the two shields together and only had a flickering issue which I solved by including the lcd.noblink() instruction.

My worry is the proximity of a 802.11 MHz antenna near the SD card and other ICs causing interference.
are my worries unfounded?

Thanks
Riccardo