1. Bruno Malbusca

    ESP-WROOM-02 is not responding to AT commands as expected

    I using the ESP-WROOM-02 (esp8266 core) as WIFI module and the samd21g18 as main processing unit. To test, I´m using the ESP-WROOM-02 DEV board kitc and an Arduino nano IOT which has also a samd21g18 MCU. I flashed the ESP-WROOM-02 via the ESP flash download tool with the [AT Firmware...
  2. Surfer1

    power consumption esp8266 diagram

    hi everyone, I'm interested to know what software or hardware you can build such graphs for consumption, bootloading or starting the firmware, performing any operations, and power consumption for esp8266, I have seen several diagrams like this on the internet. and they are designed all...
  3. M

    High Frequency counter in ESP8266 not using interrupt

    In relation to my project as documented in the Wireless&RF section , I need to solve how to count a high speed set of pulses using an ESP8266 running on esp-open-rtos. The article here already confirms that this is a true challenge and I am actually looking for another approach. I hope that the...
  4. ashokraj

    ESP12F doesnt work after cycling the power until hard reset

    Hi, I have designed ESP12F with CH340G(USB- UART converter) with auto programming feature. As shown below. I have programmed in Arduino IDE. As long as power is there, the board runs the code. But After I cycle the power, the board doesn't run the program! until I hard reset the ESP12F...
  5. L

    TRIAC (BTA41-600) and optocoupler (MOC3041) not working with load

    Hey guys, it's my first post here, so I'm sorry if I'm doing it in the wrong place and I really hope you can help me! I'm developing a dimmer with ESP8266 and I'm having trouble with the TRIAC circuit. I have a zero cross detector developed and it works fine, but when I try to send the signal...
  6. Ztimac

    Low power, tiny, wall switch controlled ESP8266, for a hue project

    Greetings enthusiasts! I've joyfully immersed myself in a DIY project controlling Hue lights with a wall switch. Hoping for some tips to get me through as I haven't done any electronics since high school. In my 40s now. My main inspirations is a project on diyhue and one on this forum using a...
  7. Playdric

    ESP8266 battery power supply

    Hello all, First of all I'm a complete newbie about circuits and electronics. I recently bought a 3D printer and I saw this project on thingiverse. Quick sum up : LEDs (WS2812) lamp controlled by an ESP8266. The main issue is that the firmware of the ESP8266 provided to control the LEDs do...
  8. P

    13.6 V to 3.7v/5v DC-DC Step Down to run ESP8266

    I have a garage door wall button which has 13.6v across. This is the typical wall button most of us have in the our homes to open and close the garage from inside the house. I want to replace the wall button and connect a ESP8266 IoT chip to control from smart phone and this chip only need...
  9. M

    Battery for ESP8266 ESP-12S A9G GSM (IoT Node v1.0 module)

    I`ve bought this board: link to shop (Elecrow ESP8266 ESP-12S A9G GSM GPRS+GPS IOT Node V1.0 Module) Here I`ve read about it: wiki page I would like to use that board with 1inch screen and send data with GSM. I would like to buy LiPoly rechargeable battery for it. I have quite basic electronic...
  10. A

    Tie into a monitored Alarm Panel

    Hello all, I'm new to this forum but have a question I'd like to see if I can get some answers to and guidance on how to proceed. I have a diy maker project using an ESP8266. In short, it sounds an remote chime and I get a SMS text when a magnetic door switch (reed switch) is opened. I've...
  11. M

    Arduino power supply with Software Serial trouble

    Hi everyone,I have been working this lasts month on a little Arduino project about making a remote control car. I'm using 2 Arduino Uno boards, one for the car and the other for the remote controller. I'm also using the module ESP8266 12-f for sending and receiving orders (I use the AT...
  12. S

    Understand low power gate timer TPL5110, any alternates?

    I was reading datasheet of TPL5110 it says "the TPL5110 has a unique One-shot feature where the timer will only power the MOSFET for one cycle." I do not understand what does it mean by "One-shot feature" and "turning on MOSFET for one cycle" here what does it mean by one cycle? I want to turn...
  13. S

    ESP8266-01 Interrupts

    I'm trying to setup interrupt in arduino based environment using board ESP8266-01, based on help i found on different sites i wrote following code, but when i program my device it continuously shows interrupt message "Interrupt Ocurred: 1" on serial monitor, while same program running if i pull...
  14. M

    ESP32 SerialBT sending data rate is not stable

    Hi all, I'm using ESP32 model: ESP8266 with a built in BT module. I'm trying to open a BT connection between the board and an phone app with sending data rate of ~1-3kHz. I'm using Aruino IDE as a code environment and implementing the connection using #include "BluetoothSerial.h" library...
  15. A

    Python for programming ESP8266/ESP32

    For all with interest in application of the ESP8266 and ESP32 family microcontrollers from Espressif, I would like to reccommend the following project we are working on. Based on Micropython, we havebuilt a basic framework for IoT projects with ESP chips. The framework has out of the box and...
  16. Theo_KVA

    Electrical switch for a non-chemical battery - How to do it?

    Hi everyone, I’m seeking guidance. I have a tricky situation which I don’t really know how to get out of. I want to design a system which would consume the least amount of power possible. The idea is to have an ESP8266 do a simple task every minute (updating a e-paper display) and sleep the...
  17. S

    ESP8266 Switch toggle on Web Page & Status of Diod & Tact switch

    Hello, I'm in the process of programming interesting project using Nodemu + ESP8266 (WiFi module). Microcontroler create own web page and there is a switch toggle (slider) which you can turn on and turn off LED diod. Now I can turn ON and turn OFF led diod by switch toggle(slider) in web page...
  18. N

    From AC cheapest way to powerup electronics like our esp

    what else? Ways to Power a Project Here are some of the most common methods used for powering a project: USB Power Variable DC Benchtop Power Supply AC to DC Wall Adapter (like a computer or laptop would use) Batteries
  19. S

    Stm32 control esp8266

    When I use STM32f103 to control the esp8266 WIFi module to send data to the network debugging assistant, the wifi is in the transparent transmission mode under the sta, and can send data to the network assistant, but it can't send 0x00. What is the reason?