Esphome gpio input programming I want to build a door sensor: wake from GPIO status changing (either 0 -> 1 or 1 -> 0) publish status of GPIO on via MQTT deep sleep I've got this working in the ESP-IDF, but figured I'd give it a try in ESPHome to see what's what. Cancel Submit feedback Saved searches Use saved searches to filter your results EDIT Actually, it does appear that the GPIO from the wt32-01 and the esp-wrover-kit match pretty closely at least for my purposes. Details can be found in the sensor's manual or online. I could also make it an internal switch with This configuration adds an output component with the gpio platform, assigning it to GPIO pin 32, which corresponds to the built-in LED of the Raspberry Pi Pico W. In this section, we will examine the library gpio. This site is powered by Netlify; Components "Output state" source_id: relay1 switch:-platform: gpio id: relay1 pin: Here I explained how to program GPIO Output for ESP32 with ESP-IDF and Eclipse IDE. I have a nodemcu connected to 8 channel relay module through SN74HC595 (shift register) as I/O expander. I have connected it to 3,3v from the nodemcu v3 and I2C. Understanding the process to set up ESPHome on different systems was another important takeaway. the sensor sends me ON/OFF states in the log, I tried ON/OFF, 0/1, true/false in the code. Values: GPIO_PORT_0 = 0¶ GPIO_PORT_MAX¶ enum gpio_num_t¶. INPUT inverted: true – platform: gpio system can easily local ESP-IDF Programming Guide As a simple GPIO input to read the level on the pin, or as a simple GPIO output to output the desired level on the pin. My practical application is to control (2) electric valves at my cabin. Has anyone else given up on programming the ESP-01? That was me until last week. I’ve seen / read and tried different ways on some topics, The button is connected to GPIO 4 and the LED is connected to GPIO 5. ESPHome is a powerful platform for creating custom smart home automation devices using ESP32 and ESP8266 microcontrollers. I tested with MQTT explorer and issue a command for the following switch (see image) and the light turn on as expected. Pins with internal pull up INPUT_PULLUP. Cannot find define “GPIO_MODE_DEF_INPUT” in doxygen xml output for project “esp32-idf” from directory: xml/ Warning. Switch Binary Sensor. 4v when it is closed and 0 when it is open. This is where ESPHome comes in: with this project you don't program your microcontroller, but configure it. Table of Contents. The button is wired from another GPIO pin to ESPHOME light platform GPIO PCF8574 - problem. Each pin can be used as a general-purpose I/O, or be connected to an internal peripheral signal. Skip to content. The second argument is the mode (input or output) we want to set the pin in. Search by Keyword/Part Number (Part Database: 6000K+) Search. This I’m trying to use a ESP32 with a 1-Bit AC 220V Optocoupler Isolatie Module I don’t get a stable readout. First thing, making sure I have it wired correctly - 3. The ESPHome Webtools page seems to erase and program the device, but it does not appear in the ESPHome page in HA. Configuration variables: ESP-IDF framework. - platform: dht # This defines the type of sensor you're using. Advantages: The WiFi link to HA is included without any programming, and it seems to be very reliable. 4V and current approx. binary_sensor:-platform: gpio # on_click:-min_length: 50ms max_length: 350ms then: ESP-IDF GPIO APIs. You need to feed in data specific to your sensor. Just write a simple YAML configuration file and get your own customized firmware. With ESPHome you can use different types of binary sensors. If you’re just getting started with the ESP8266, we recommend ESP32 Wroom32 DevKit has total 25 GPIOs out of that few pins are Input only Pins, Input Only Pins. The first number is the GPIO0 status I have spent almost half of Saturday to run 2 types of pcf8574 - one chinese one, and second from Waveshare. Values: GPIO_NUM_0 = 0¶. This means binary_sensor: - platform: gpio pin: number: 34 mode: INPUT_PULLDOWN name: "Example PIR" device_class: motion. yaml:48] Platform not found: 'light. GPIO14; GPIO16; GPIO17; When programming it is named as Serial2. In fact, we just took The peripheral components do not appear on the ESPHome dashboard. It sends . After saving the file (in the web editor at the top right), click on Install. I was hoping I could use a pin on the ESP-01S to read this signal and pass along so I can use in HA. fails, I’m still missing something or have the syntax wrong. These pins are the versatile workhorses of the microcontroller world, capable of performing both input and ESP-IDF Programming Guide As a simple GPIO input to read the level on the pin, or as a simple GPIO output to output the desired level on the pin. Each relay corresponds with a different speed setting. IDF peripheral drivers always take care of the necessary IO configurations that need to be applied onto the pins, so that they can be used as the peripheral signal inputs or outputs. 00221" # Lower value gives My searches in the forum only show result with mqtt platform, no where to hint how to use gpio with mqtt. For example to use the pin with the internal GPIO number 16 (Optional, string or mapping): Configures the pin to behave in different modes like input or output. For more details, see ESP32 Technical Reference Manual > IO MUX and GPIO Matrix (GPIO, IO_MUX) . There is one GPIO set up for the buzzer, and another for the alarm enable switch. ESPHome Web Server Component. so are there some config options to disable those requirements so it doesn’t matter if the pins are high or low at boot up? In our previous post, we have seen how to setup the Visual Studio Code for ESP-IDF and executed the hello world program. Everything you need to know about the ESP-01 WiFi module. in input mode: the input read value can still reflect the changes of the input signal. GPIO_NUM_4 = 4¶ GPIO4, input and output . Each GPIO can be configured with a glitch filter, which can be used to filter out pulses shorter than two sample clock cycles. The second number (6) indicates that the GPIO pins are set to input mode and GPIO0=low, GPIO2=low during reset. yml file. I have that part of the yaml file 4 # One of INPUT, INPUT_PULLUP or OUTPUT mode: OUTPUT inverted: True unfortunately gets a mistake. I also Failed config status_led: [source <unicode string>:14] Pin 5 is used in multiple places. Getting Started with the ESPHome Command Line Go open that file in an editor of your choice and let’s add a simple GPIO switch to our app. gpio: [source bathroom. I’m also posting my yaml configuration for programming them with esphome. switch:-platform: gpio. GPIO_NUM_7 = 7¶ GPIO7, input and output . Getting Started with ESPHome and Home Assistant we’re going to add a very simple binary sensor that periodically checks a GPIO pin to see whether it’s pulled high or low - the GPIO Binary 16 inverted: true mode: input: true * This test code shows how to configure gpio and how to use gpio interrupt. I’ve managed to use ESPHome to upload yaml files into the ESP32 so that i can view 4 switches in my home assistant GUI. Use to signal not connected to S/W . Modbus My approach has been tested using micropython and is to have the gpio as an input pull_down as default but when I want to change the relay state I reinitialize the gpio to an output, send a pulse and then reinitialize back to an input. These pins are the versatile workhorses of the microcontroller world, capable of performing both input and ESPHome always uses the chip-internal GPIO numbers. So if you are connecting the reed switch from GPIO to GND, LOW will mean the door is closed so you won't need to invert the pin. GPIO, or General Purpose Input/Output, refers to digital pins found in microcontrollers, such as the ESP8266 or ESP32. The valve I am trying to connect to the relay has a signal that is sent when it is open or closed. GPIO Constraint; GPIO2: Free for user use - No constraints. Interrupt-on-change for inputs is not possible. - esphome/esphome ESPHome is a framework that tries to provide the best possible use experience for using IoT microcontrollers for Home Automation. Configuration variables: See Also; Join the community; Follow us on Twitter; Source Code; Contact (no support!) ESPHome is part of the Open Home Foundation. There are several ways to configure a GPIO pin as a 3. GPIO_NUM_2 = 2¶. This document describes using ESP-IDF with the ESP32 SoC. name: "Relay" pin: <PIN_RELAY_IS_CONNECTED_TO > Note. ESP-IDF Programming Guide As a simple GPIO input to read the level on the pin, or as a simple GPIO output to output the desired level on the pin. Together these modules provide highly configurable I/O. I had to expand this project to more sensors, including bluetooth, so opted for ESP32. When used with code below I can set the state to ON or OFF and there was output (about 3v) on pins - so the Describe the problem you have/What new integration you would like Switch the GPIO's role on demand between input and output Please describe your use case for this integration and alternatives y Skip to content. It is for programming the devices only. I have tried different ESP boards, different cables. Logs do not show Hi, I’m trying to have a led blink when a GPIO is set high. Note that you can set the device_class to "door" (where "On means open, Off means closed. Please help me how to remove this chattering of relays at boot. Video: substitutions: plug_name: energy_1 # Higher value gives lower watt readout current_res: "0. Just like in output mode, you need first to define the GPIO pin to operate in input mode in the setup() function, using pinMode() Arduino function as shown below. MCP47A1. GPIO_NUM_9 = 9¶ GPIO9, input and output . The pullup resistors needed to get the module to start up correctly can double as the I2C bus pull-up resistors and the other, slave, components on the bus are open collector and so should not pull the bus down on power-up. model: DHT22 # The specific model of DHT sensor (DHT11 or DHT22). GPIO2, input and output Note There are more enumerations like that up to GPIO39, excluding GPIO20, GPIO24 and GPIO28. 3V source. doxygendefine: Cannot find define “GPIO_MODE_DEF_OUTPUT” in doxygen xml output for project “esp32-idf” from directory: xml/ Warning. I have a reed sensor intended to determine if a door is opened or closed. GPIO1, input and output ESP-IDF Programming Guide The ESP32-S3 chip features hardware filters to remove unwanted glitch pulses from the input GPIO, which can help reduce false triggering of the interrupt and prevent a noise being routed to the peripheral side. GPIO 33 connected to Wemos D1 relay shield. Sketch for LED Blinking using ESP32 void setup() { pinMode(0, OUTPUT); // sets the digital This is probably a really simple question, but I’ve been banging my head on it for a few days so figure it’s time to ask for a second opinion. The ‘INPUT_PULLUP’ mode is not supported on this device. They will automatically appear in the Home Assistant front-end and have several configuration options. However there’s still some odd behavior; the WT32 module has a pin labeled GPIO1 but it appears to not be connected to any of the pins on the ESP32 module. This subreddit has several bits of good advice Configuration for the ESP32 platform for ESPHome. Current value can be set globaly or for each pin, through 16 possible levels. Likewise, GPIO3 seems to be always high and i can’t seem to control it. "). Pulse duration is 12 seconds, voltage 3. 0V. CH_PD: Chip Not everyone can program these microcontrollers using Espressif's C/C++ SDK, Arduino core, or MicroPython. temperature: name: "Living Room a ESP01 has only 4 usable pins and normally you only have to pay attention that GPIO 0 is high on boot up. h in ESP-IDF and see basic functions to control digital input and output ports of ESP32. The ESP has three different GPIO output pins that drive three different relays. Hallo, Thank you, I made progress in the evening, currently. The only usable GPIO pin that has no constraints is GPIO2. The RX pin, or GPIO 3, is a serial input or normal input/output pin. The definitions are as follows: # buzzer (local) - Hello all, I’m trying to use an ESP-32 to remotely control my pool pump via a series of relays. The default value depends on the context. GPIO_NUM_1 = 1¶. For that we use the gpio_set_level() function. Warning If the pad is not configured for input (or input and output) the returned value is always 0. Discord Forums Changelog GPIO Output. ESP-IDF is the official development framework for the ESP32, ESP32-S, ESP32-C, ESP32-H and ESP32-P Series SoCs. Getting Started guide for installing ESPHome Device Compiler as a Home Assistant add-on and creating a basic configuration. 0V to 1. GPIO_NUM_5 = 5¶ GPIO5, input and output . Return. GPIO_NUM_11 = GPIO Pin Numbering¶ Many boards have a pin numbering for the exposed pins that is different from the internally used ones. Within ESPHome they emulate a real internal GPIO pin and can therefore be used with many of ESPHome’s components such as the GPIO binary sensor or GPIO switch. GPIO_NUM_10 = 10¶ GPIO10, input and output . On the ESP8266, this is always 0. g. I have an ESP32 Dev Kit V1 , and I connected (2) push buttons, (2) Leds and (2) Contactors, to the GPIO pins. ESPHome tries to map the silk-screen pin numbers into the internal pin numbers with a few boards, but for generic ESP8266 boards it is often required to just use the internal pin numbers. * GPIO status: * GPIO18: output (ESP32C2/ESP32H2 uses GPIO8 as the second output pin) * GPIO19: output (ESP32C2/ESP32H2 uses GPIO9 as the second output pin) * GPIO4: input, pulled up, interrupt from rising edge and falling Getting Started guide for installing ESPHome using the command line and creating a basic configuration. For example to use the pin with the internal how to create your own home automation devices with ESPHome on an ESP32 microcontroller. pin no number of pin whose mode we want to set. # Example configuration entry mcp23016:-id: Within ESPHome they emulate a real internal GPIO pin and can therefore be used with many of ESPHome’s components such as the GPIO binary sensor or GPIO switch. The same setup on a ESP8266 worked perfectly. Values: GPIO_NUM_NC = -1¶. ESP32 Platform. The firmware code for ESPHome was written according to the documentation for this base. e. Basic tasks to configure I/O ports include setting a port as input or output port, setting and clearing an output port and reading digital input port. int buttonState = 0; In the setup(), you initialize the button as an INPUT, and the LED as The ESP32 has a variety of general-purpose input/output (GPIO) pins that can be configured as inputs or outputs. I found that you can activate internal pullup or pulldown resisto For ESPHome, you would use the GPIO Binary Sensor component. Ds, how to sound a buzzer and play melodies, and how to It took me a good deal of searching and cross-reading, but I finally came up with a way to program a GPIO pin to connect internally to ground. My config looks like this: binary_sensor: - platform: gpio pin: GPIO18 name: "Drum motor toggle" id: drum_motor_toggle mode: INPUT_PULLDOWN That’s it! We have created a LED strip controller without programming and using assembler programs. switch:-platform: gpio name: "Living Room Dehumidifier number: 16 inverted: true mode: input: true pullup: ESPHome is a system to control your ESP8266/ESP32 by simple yet powerful configuration files and control them remotely through Home Automation systems. It also takes in two arguments. GPIO1, input and output It doesn't require a complex understanding of programming languages. I have an ESP-01S set up and connected to a relay. MCP4725. The OEM branding for these plugs changes from time to time. speed setting. 2. It is constantly bouncing between on and off. I've been playing with it for ~an hour now, and I'm really not understanding the conventional way to "do things". yaml run. No programming is required, the configuration of the sensor takes place in a . This means ESPHome is a beginner-friendly platform that enables the user to build their own diy smarthome sensors. I can’t run it to read the state of pins. This means Enumerations¶ enum gpio_port_t¶. ESP-IDF Programming Guide. I was lucky enough to pick one of these up on sale a couple of weeks ago, but I’m having an awful time trying to set it up! Door pin: number: GPIO32 inverted: true mode: input: true - platform: gpio name: "Motion_Hall" pin: number: GPIO33 Enumerations¶ enum gpio_num_t¶. 78mA. GPIO1, input and output . Next, you create a variable to hold the button state. Include my email address so I can be contacted. Additionally, an interval component is defined to trigger the LED to turn on, wait for 500 ms, and then turn off every 1000ms. Pins can also be individualy configured as led driver and used with Light components. Trouble is I am getting fluctuating values when pulse is ON on GPIO pins and even input-only pins. This is working well but I would rather use esphome instead of micrpython if possible. By default, it’s 0 (not pressed). I can control the NC/NO of the relay using the ESP-01S after setup. You'll learn how to use buttons, L. Instructions for setting up a web server in ESPHome. i got this code as example: binary_sensor: - platform: gpio pin: number: GPIO12 mode: programming the controller in C++ (Arduino) or Micropython. the sensor turns the pump off, after switching on it does not turn it on this is ok. gpio'. gpio_set_direction(GPIO_NUM_27, GPIO_MODE_OUTPUT); In the following line of code we are configuring GPIO33 as an input pin. 3V input signal to the chip-internal 1. They are defined in the output section as local (inaccessible from homeassistant) GPIO’s. Open ESPHome, and you'll see a field to input data. You create a simple configuration file in YAML, a plain text format for data serialization. The docs say it’s supported for ESP32 but I can’t get mode: INPUT_PULLUP to compile either. This means The problem Setup: ESP32 NodeMCU, with ESPHome 2022. The GPIO Binary Sensor platform allows you to use any input pin on your device as a binary sensor. - esphome/esphome We read every piece of feedback, and take your input very seriously. Configuration variables: Arduino framework. A GPIO interrupt is a form of an external interrupt where an external trigger signal occurs when a key is pressed down (for example). The Note: not all GPIOs are accessible in all development boards, but each specific GPIO works in the same way regardless of the development board you’re using. Installation and Set-up. (don’t want to see this output in HA frontend) Currently the led turns on or off, depending on the switch state. Configuration variables: These pins cannot be used as outputs (yes, even though GPIO stands for “general purpose input/output”). I currently don’t know how to disable turning on the switch when the sensor is off. Now i ESPHome always uses the chip-internal GPIO numbers. Failed config light. 0 the GPIO input level is 0; 1 the GPIO input level is 1 ; Parameters. pin GPIO16, gpio_num should be This component prints the voltage as seen by the chip pin. On ESP8266 GPIO04/05/12/13/14 are safe for input. As before, after the device reboots again we should see the new PIR device appear in Home Assistant. On ESP32, at boot or reset, the GPIO You need a wire from a GPIO pin on the Pico to the Input of the relay module. I am trying to get my ESP32 to read pulse output from an NE555. GPIO_NUM_8 = 8¶ GPIO8, input and output . this is in case of an ESP01 useless in my opinion. - esphome/esphome Getting Started with ESP32 using ESP-IDF; ESP32 GPIO with ESP-IDF with LED Blinking example; ESP32 GPIO Interrupts. The platform allows OTA-Uptdates over wifi to the controllers which makes I am new to esphome and home assistant world. This is to open a door on HA command. ESPHone includes a web server that you could use. It will be either ‘GPIO_MODE_OUTPUT’ if you want to configure the port as an output or ‘GPIO_MODE_INPUT‘ if you want to configure the port as ESPHome is a framework for working with ESP devices, and making them easier to setup and use in a home automation environment. The best trick to get extra inputs into the ESP8266-01 is to use an I2C interface. LibreTiny PWM. GPIO_NUM_0 = 0¶. gpio_set_direction(GPIO_NUM_33, GPIO_MODE_INPUT); Set Output Level of Digital Pin. 3v → sensor → GPIO15. Sign in Even though ESPhome allows me to set the same GPIO as input (binary sensor) and output, I This article explores ESP-01 pinout, specs, programming, comparison with ESP-01S and ESP8266, etc. Under the hood, ESPHome translates your configura - tion to C++ code to run on the microcontroller. When using the Arduino IDE with the ESP32, 4 corresponds to GPIO 4 and 5 corresponds to GPIO 5. The ESP32-C3 chip features 22 physical GPIO pins (GPIO0 ~ GPIO21). gpio_num: GPIO number. RP2040, BK72xx, RTL87xx wich are cheap microcontrollers and a large selection of sensors. GPIO0, input and output . BOM / RFQ 0. GPIO & RTC GPIO . zyzakin (Zyzakin) June 3, 2020, 3:19pm 1. The simplest way is to configure the pin as inverted: Enabaling pullup activates the internal pull-up resistor on ESP32 Hello, I would like to create a button on a web interface that can simulate the activation of a GPIO (General Purpose Input/Output) pin on an ESP32 microcontroller. Accepts either a shorthand string or This function is used to configure GPIO pin as input or output. Here is a list of constraints on the GPIO pins. As a peripheral signal input/output. Choose Enumerations¶ enum gpio_port_t¶. GPIO_NUM_6 = 6¶ GPIO6, input and output . The relevant portion of my config is: binary_sensor: - platform: gpio id: ESPHome is a system to control your ESP8266/ESP32 by simple yet powerful configuration files and control them remotely through Home Automation systems. MCP4728. One to turn on the main water and one to open a main drain to drain all the pipes. GPIO 34; GPIO 35; GPIO 36; GPIO 39; Not all pins have input pullup, you need external pullup on these pins when using as input pullup. GPIO3, input and output . Made for ESPHome program Keeping up. Digital input signals can come from various sources like a small push button, digital proximity sensor, digital optical encoder, etc. Again, compile and flash the firmware with esphome. 0V Some development boards like the Wemos D1 mini include external voltage divider circuitry to scale down a 3. Navigation Menu Toggle navigation. . Hello. We began by understanding what ESPHome is and how it's a great open-source tool to create custom firmwares for your ESP8266/ESP32 boards and sensors. We will go through one by one. This means int gpio_get_level (gpio_num_t gpio_num) ¶ GPIO get input level. When nodemcu boots it turns off all relays with a chatter as I want to operate my relays in normally off position. Mode INPUT, OUTPUT or INPUT_PULLUP. The video and configuration below is for programming SP20 plugs to add to Home Assistant. To use a relay with ESPHome, use a GPIO Switch component: Copy. I figured I can make it an output output: - platform: gpio pin: GPIO14 id: relay1 but no, there is no “initially on” setting for GPIO outputs. These internal numbers are always integers like 16 and can be prefixed by GPIO. pin: number: 5 inverted: True mode: output: True input: False open_drain: False pullup: False pulldown: False analog: False ESP-IDF Programming Guide Through IO MUX, RTC IO MUX and the GPIO matrix, peripheral input signals can be from any IO pins, and peripheral output signals can be routed to any IO pins. When the input turns on, NO is connected to COM and when the input turns off, NC is connected to COM. pin: GPIO4 # The GPIO pin which the sensor is connected. Again, without knowing what module you are using, I would assume that it is probably 5V tolerant. Active High, attached to NO. One of the experts on esphome ESP-IDF Programming Guide As a simple GPIO input to read the level on the pin, or as a simple GPIO output to output the desired level on the pin. platform: gpio Understand the basics: ESPHome. pinMode (3, OUTPUT); //set pin 3 as output Let’s write a program for led blinking using ESP32. This would allow me to test and manipulate my pulse counter without having to physically interact with the ESP32 device, such as going outside to manually activate the GPIO pins. Relays are a very common component in electronics, so there are many types of them and I won't attempt to describe all ESP-IDF Programming Guide This is the documentation for Espressif IoT Development Framework . Obviously if they’re all off, the fan is off. Highlight the I want to use a predefined output inside a lambda, but l’m getting type mismatch errors in the C++ compiler when setting the output low or high. # Example configuration entry binary_sensor : - platform : gpio pin : D2 name : "Living Instructions for setting up GPIO pin switches in ESPHome that control GPIO outputs. Only one pin should be high at a time. Hardware Required; Introduction; Source Code – ESP32 I am and old guy - new to Programming and a first time user of Home Assistant. As a workaround I guess I could set it to inverted so that the default “off” leads to a high level at the pin but that seems wrong. 4 installed. GPIO pins in the datasheet are labelled A0 to A7 and B0 to B7, these are mapped Instructions for setting up switch binary sensors with ESPHome. The goal is to have I’m a total esphome noob, and have been looking to create a pretty basic wired security system to integrate into HA. LED Interfacing to ESP32 GPIO . The next step is to set the output level of the GPIO port. GPIO32 to GPIO39: These pins can be used with the GPIO, or General Purpose Input/Output, refers to digital pins found in microcontrollers, such as the ESP8266 or ESP32. esphome example. but with ESPHome GPIO 0, 1(TX) and 2 needs to be high on boot up. To use the GPIO pins as inputs or outputs, you will need to use a library that provides an API for interacting with the ESP32's GPIOs. Enumerations¶ enum gpio_num_t¶. 31. ESPHome. Overview . One choice is to use GPIO0 and GPIO2 as the I2C bus. (µ/ý Xd €ªtG@GÛæÃÓe †a @î ps €jFîîF¤HÝ"W¾Êî B¦xã ³ Eá '¢ê E‹_cý½½½½IhÛÊ=Ó ÿ”¨Qîxž_L 2 J O ü8ØâÀÃ8 ËX°àñìì I’m trying to use the mode: INPUT_PULLDOWN option with my defined binary sensors and having no success. In this post, we will see ESP32 GPIO tutorial using ESP-IDF. use YAML to identify your sensors. Please read the GPIO article which explains how the GPIO works in all microcontroller and types of the GPIO. #ESP32 #ESP-IDE #voidlooprobotech #ESP32_Programming #ESP32_with_Ecli hello , Hello, I would like to create a button on a web interface that can simulate the activation of a GPIO (General Purpose Input/Output) pin on an ESP32 microcontroller. KC868-A16 ESPHome 16 channel relay module for home automation DIY. The input value from the binary sensor is x and you can return true for ON, false for OFF, and {} to stop the filter chain. However, on ESP32/S2/C3/S3/C2, this function cannot be used to hold the state of a digital GPIO during Deep-sleep. This Dear All, D1 wemos with momentary button on gpio 12 and a led on gpio13. If your board has this circuitry, add a multiply filter to get correct values: Three of the GPIO pins are required during programming. If this function is enabled: in output mode: the output level of the GPIO will be locked and can not be changed. I bought a heap of ESP-01’s a couple of years ago, but after reading hundreds of poorly written “instructions” on programming and trying I’ve been unable to program my new AtomS3 Lite devices with ESPHome. Its primary function is to receive data. ESPHome is a system to control your ESP8266/ESP32 by simple yet powerful configuration files and control them remotely through Home Automation systems. I manually control them with a I would like to set a GPIO pin to be always on. If you want to get the logic level of e.
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