This guide walks you through the process of integrating a custom ultrasonic sensor with ESPHome and Home Assistant, from initial setup to viewing the sensor data in Home Assistant.
| Per this forum post: https://esp32.com/viewtopic.php?t=6701 | |
| The way to calculate max PWM frequency is integer (log 2 (LEDC_APB_CLK / frequency)) | |
| With a LEDC_APB_CLK == 80MHz, these are the following maximum values, in Hz: | |
| LEDC_TIMER_1_BIT, 40000000 | |
| LEDC_TIMER_2_BIT, 20000000 | |
| LEDC_TIMER_3_BIT, 10000000 | |
| LEDC_TIMER_4_BIT, 5000000 | |
| LEDC_TIMER_5_BIT, 2500000 |
| import serial | |
| import re | |
| class LGTV(object): | |
| """ Interface for serial control of LG Televisions """ | |
| def __init__(self, port='/dev/ttyUSB0'): | |
| super(LGTV, self).__init__() | |
| self.port = port |
| # -*- coding: utf-8 -*- | |
| import ast | |
| from parsimonious.grammar import Grammar | |
| from parsimonious.nodes import NodeVisitor | |
| json_syntax = r''' | |
| json_file = ws? json ws? | |
| json = object / array |
| # GNU Screen - main configuration file | |
| # All other .screenrc files will source this file to inherit settings. | |
| # Author: Christian Wills - cwills.sys@gmail.com | |
| # Allow bold colors - necessary for some reason | |
| attrcolor b ".I" | |
| # Tell screen how to set colors. AB = background, AF=foreground | |
| termcapinfo xterm 'Co#256:AB=\E[48;5;%dm:AF=\E[38;5;%dm' |