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  • Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

esp32

  1. S

    4G/5G/LTE modem for ESP32

    Hello folks! I'm looking for a generic-ish mobile data modem for my project. While Googling, I really cannot see the forest for the trees anymore, seeing anything from €50 to €250 options, ESP boards with a modem on-board, etc. Question is mostly, what are other people (you ) using? I would...
  2. S

    Connecting 6 push buttons with ESP32 with 1 common pin

    Hey all I have 6 buttons that have the following voltage: I want to hook up a 4N25 to each one of these so I can use the ESP32 as a "virtual push" to each of these buttons. When the button is pressed the 3.2vdc goes to ground. To minimize the amount of wire going to each one I have come up...
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    min(initializer_list<_Tp> __l, _Compare __comp) Error while compiling ESP32 library code from Arduino IDE

    OS: Linux(Ubuntu Mate) IDE: Arduino IDE Example: asm_terminal (USB library code for interfacing ARDUINO USB HOST SHIELD with ESP WROOM 32) I am working to interface Arduino USB host shield with ESP WROOM 32. I have added the ESP 32 board to the Arduino IDE and able to run basic example codes on...
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    Suggest good USB host to UART converter to work with ESP WROOM 32

    Hello, I am working on a project in which I am supposed to convert USB host to UART to communicate the data to NodeMCU. I have tried to use ch376s but unfortunately it's not working as required. So if you know any other USB Host to UART converter module, please do suggest. Thanks in advance.
  5. D

    how work with TCD1304 AP ccd line sensor

    hello every one for a project i need to work with a line sensor TCD1304 AP . here it's the data sheet link http://www.spectronicdevices.com/pdf/TCD1304AP.pdf i don't know what's the exactly protocol of this sensor how i should use this ? what kind of processor i should use ? will a esp 32...
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    MCU with WiFi and GREAT ADCs

    Hi, I have been looking all over the Internet and the MCU that best matches what I'm looking for is the ESP32. However, those ADCs specs are not enough for my project: I'm in need of a Microcontroller that has WiFi (integrated 2.4GHz antenna) and at least 12 input ADC pins (>=12 bit...

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