Re: Connect SD card or MicroSD card to ESP-01
Posted:
Wed Dec 30, 2015 11:14 amby mflmartin
martinayotte wrote:I would choose the common GND on perfboard option avoiding an additional tiny wire, which can bring noise on the power lines.
Enjoy your soldering challenge ! 
Thanks!
And about the soldering pins... is this correct?
GPIO14, it is MTMS in your image, GPIO13 is MTCK and the GPIO12 is MTDI, no?
As found here:
https://nurdspace.nl/images/5/58/Esp8266_schema.png
Re: Connect SD card or MicroSD card to ESP-01
Posted:
Sat Sep 17, 2016 11:23 amby treii28
Yeah i was looking this morning and there are some photos of people who have hardwired to the chip but I wouldn't want to have to try that - you'd need a really steady hand, good eyes, small wires and a lot of patience. I'm currently working on trying to find good ways to wire to an ESP-12 or ESP-07 directly without the dev board. Should be far easier.
Re: Connect SD card or MicroSD card to ESP-01
Posted:
Sat Sep 17, 2016 2:19 pmby Barnabybear
I'm currently working on trying to find good ways to wire to an ESP-12 or ESP-07 directly without the dev board. Should be far easier.
Hi, I'm not sure that 'good' is the term I'd use, but here's how I did my development untill a had some boards made. It was a upgrade to a project that had previously used ESP8266-01's. The card holder came from a £ shop.
https://dl.dropboxusercontent.com/u/763 ... %26_SD.jpgCode: Select all The circuit:
* SD card attached to SPI bus as follows:
** MOSI (2) - GPIO 11
** MISO (7) - GPIO 12 // 10K pull up
** CLK (5) - GPIO 13
** CS (1) - GPIO 15 // changed from GPIO 4.
// Actual terminals on card socket from the cut corner
// 9, 1, 2, 3, 3, 4, 5, 6, 7, 8 for SD
I started with this sketch.
https://www.arduino.cc/en/Tutorial/DumpFile
