ESP8266 CBDB nEXT Evo Board

Use this forum to chat about hardware specific topics for the ESP8266 (peripherals, memory, clocks, JTAG, programming)
 Reply

User avatar

ESP8266 CBDB nEXT Evo Board

By trackerj
- Tue Nov 24, 2015 6:55 am #34864 Hello,

This new board is just a simple ESP8266 Board with USB + Extension Bus (nEXT) and is the result of looking for a smaller and somehow a more flexibile hardware configuration than the CBDB Evolution DevBoard.

This is how is looking the PCB of it:
Image

and the finished Board:
Image

This is the board that was also used for the long run battery tests posted here:
Ultra low power application schematic: RFC
In this case on top of it was added the RTC/Li-Ion battery charger nEXT module.

For more details about, please see related articles:


User avatar

Re: ESP8266 CBDB nEXT Evo Board

By trackerj
- Wed Dec 02, 2015 4:58 am #35486 And the first Extension board, if you didn't see it yet, this is AN1, the ANALOG ADC/DAC + I/O Board for CBDB nEXT EVO: http://www.esp8266-projects.com/2015/12/p3-esp8266-next-evo-analog-extension.html.

Also can be directly used with any other MCU, Arduino, ARM, etc as long as it has a I2C bus and 3V logic.

Basic default functions of the CBDB nEXT AN1 Extension Board:
    INPUT : 0-40V Autorange Analog frontend / 18 Bit ADC
    OUTPUT : 4x12 BIT DAC
    TEMPERATURE : I2C Temperature sensor, standard or high precision options
    I/O: 8 Bit I/O Expansion Port


ESP8266 nEXT EVO_AN1.jpg

Image
You do not have the required permissions to view the files attached to this post.
User avatar

Re: ESP8266 CBDB nEXT Evo Board

By trackerj
- Tue Dec 08, 2015 4:49 am #35963 And a Graphical Display option for it :)

My first option for a Alphanumeric Display still remain the ST7032i LCD one, but as I was looking also for a Graphical Display option, I found this SSD1306 OLED as a easy to use one with the CBDB nEXT EVO Board.





Original article about http://www.esp8266-projects.com/2015/12/mailbag-ssd1306-oled-display-for.html
User avatar

Re: ESP8266 CBDB nEXT Evo Board

By trackerj
- Thu Dec 10, 2015 5:15 am #36147 The SAGA Continues: Part 2 of the ESP8266 nEXT EVO Analog Extension Board (AN1)

In this part we will talk a bit about the nEXT Bus I²C protocol and we will start also a longer, multi-part discussion about testing procedures and software programming for the AN1 Board devices and functions (I/O Expansion port, Temperature, ADC, DAC, Voltage measurements,etc.



Any related comments, suggestions, ideas are warmly welcomed :)

0_0_ESP8266_nEXT EVO Board - AN1 - top_0_0.jpg


Thank you,
TJ.
You do not have the required permissions to view the files attached to this post.
 Reply
Return to Hardware Specific