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  • #2749
    Just4Fun
    Participant

    Hi everyone,
    I recently changed my personal “to do list” realizing a small card (hence the name NanoBoard…) to more easily use the well-known form ESP-01 based on the MCU ESP8266EX with adjoining WIFI interface:

    The NanoBoard also contains the serial-USB adapter and a “expander” (optional) with 16 Individually configurable GPIOs.
    In addition, a circuit is implemented for the automatic upload commanded by the IDE Arduino (no need to press any buttons), in addition to the possibility of feeding the coupon also by an external power supply.
    It is primarily designed for the learning environment, I also added several LEDs and an I2C interface for easy connection, eg, a small OLED display.
    I am currently waiting to receive a new version of the PCB that corrects some errors and introduces minor improvements.
    I'll post here the details for the implementation and also some sample program.
    Until next…

    • This topic was modified 4 years, 7 months ago by Just4Fun.
    • This topic was modified 4 years, 7 months ago by Just4Fun.
    • This topic was modified 4 years, 7 months ago by Just4Fun.
    • This topic was modified 4 years, 7 months ago by Just4Fun.
    #2754
    Amilcare
    Keymaster

    Good job
    For what you can see well thought sembta.
    I await developments and specific

    #2809
    Just4Fun
    Participant

    Article published… 🙂

    #10443
    JethTran
    Participant

    Hi….How do you want to connect both boards?
    Via I2C (slave on the Nano, master on the ESP) or UART?
    Maybe the last one is the simplest one and then you could use the P087_SerialProxy, which essentially does echo the received string on the selected serial port to a MQTT controller.
    That may be the best fit for your application.

    #10445
    Just4Fun
    Participant

    Hi,
    it is not clear to me what do you mean.
    This is a sort of little “motherboard” for the ESP-01 module.
    More info here: https://hackaday.io/project/154382

    #10454
    Picmicro675
    Moderator

    There’s only one MCU, which is the one on ESP-01.

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