ESP8266_swiss_army_board

Arduino based project running on my custom made board

The hardware :

The board :

The modules :

Hardware pin mapping :

(This image wasn't done by me)

So we have :

• I2C (for OLED screen and RTC)
  • GPIO4 --> SDA
  • GPIO5 --> SCL
• SPI (for µSDCard)
  • GPIO13 --> MOSI
  • GPIO12 --> MISO
  • GPIO14 --> CLK
  • GPIO2 --> µSDCard CHIP_SELECT

Here is a list of the components needed in order to build such a board :

• 1x 1N4001 reverse voltage protection diode
• 1x AMS1117 5v voltage regulator
• 1x AMS1117 3.3v voltage regulator
• 2x 22µf electrolytic capacitors
• 2x 0.1µf (code 104) tantalum capacitors
• 1x jumper
• 1x 2 pins male header
• 1x On/Off switch
• 2x push buttons
• 1x ESP8266 E12
• 1x 19 pins female header
• 1x 2 screws terminal
• 1x micro USB socket
• 1x 100 ohm resistor
• 2x 1k ohm resistor
• 1x 6.8k ohm resistor
• 1x 3.9k ohm resistor
• 1x 22k ohm resistor
• 2x 10k ohm resistor
• 1x 33k ohm resistor
• 1x 4.7k ohm resistor
• 1x 7cmx5cm pcb

The software :

I2C Hardware addresses :

• OLED screen : 0x3C
• RTC DS3231 : 0x68

External librairies used :

• Adafruit_SSD1306 (not my work) link
• Adafruit-GFX (not my work) link
• RTClib-master (not my work) link
• AT24CXX-master (not my work) link

Things to do :

• Screen Manager
• µSDcard File System
• RTC Manager
• RTC FLASH Manager
• FTP Service
• WEB Service
• GPIO Util