SD card gets crazy hot

Posted on Sat 4th, February 2017

• #1

BootySnorkeler

Hi,
yes, my SD card gets crazy hot, as well as the board.
If I unplug it, the board works fine.
I did buy it for like 2 bucks off Amazon. Might just be a cheap card.
However, if it isn't, how can I fix it?
• #2

MaBe

Hi @user73202

please share board, SD card, power supply and your wiring.
• #3

BootySnorkeler

Espruino original board, 1gb cheap sd card, phone charging cable as power supply, and nothing connected to board besides sd card
• #4

MaBe
if this works "PC USB - cable - Espruino board" than I guess
- then wiring to SD card module is wrong
- or the SD card module is broken
• #5

MaBe

Ups - are you using the internal card module ?

http://www.espruino.com/EspruinoBoard
• #6

Gordon

That's a bit worrying - I've never encountered that before.

Does the card work if you plug it into a PC?

By default, the only thing that's connected to the card is the 3.3v power line and GND - so assuming there's nothing obvious wrong with the Espruino Board (like a short on the contacts sticking out of the back of the SD card holder) then I'd say it would have to be a problem with the card.
• #7

DrAzzy

Could you have accidentally connected it improperly previously?

SD cards are very easy to trash if you abuse them, and often fail acting as if Vcc and Gnd are shorted.

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