• Overview
• Using esptool
• Example collection
• References

Overview

I'm using ESPHome for a variety of DIY-made devices. This page talks about how I manage my ESPHome configuration and devices.

• Tooling: Documentation for my tooling around ESPHome.
• Boards: ESP32 and ESP8266 boards for ESPHome.
• Components: Electronics components with ESPHome - sensors, displays, LEDs, GPIO and other hardware.

Using esptool

To upload a compiled firmware .bin file over USB-UART on /dev/ttyUSB0:

$ chip_name="esp32"
$ uart="/dev/ttyUSB0"
$ esptool.py --chip ${chip_name} -p ${uart} write_flash 0x0 firmware-factory.bin

Example collection

json::parse_json(id(http_request_id).get_string(), [](JsonObject root) {
  id(template_sensor_id).publish_state(root["value"]);
});

json::parse_json(id(http_request_data).get_string(), [](JsonObject root) {
    id(player_volume).publish_state(root["vol"]);
});

Delay an action until something has been in a state for ${wait_time}:

on_...:
  then:
    - wait_until:
        condition:
          for:
            time: ${wait_time}
            # combined with a lambda condition
            condition:
              lambda: |-
                return id(entity).state;
    - lambda: |-
        id(entity).do_something();

This syntax is pretty YAML-heavy and hard to remember off-hand.

References