明基投影仪RS232接入（之ESPHome版） - 『瀚思彼岸』» 智能家居技术论坛

substitutions:
device_name: benq
ip_address: 192.168.19.54
esphome:
name: ${device_name}
includes:
- uart_read_line_sensor.h
esp8266:
board: nodemcuv2
# Enable logging
logger:
# Enable UART. Please select the pins you're using on your board.
uart:
id: projector
tx_pin: D4 #GPIO2
rx_pin: RX #GPIO3
baud_rate: 115200
# Enable Home Assistant API
api:
ota:
platform: esphome
wifi:
ssid: !secret wifi_ssid
password: !secret wifi_password
fast_connect: true
use_address: ${ip_address}
# Enable fallback hotspot (captive portal) in case wifi connection fails
ap:
ssid: ${device_name}
password: !secret ap_password
captive_portal:
# This is our hub - it manages our connection to the projector.
text_sensor:
- platform: custom
lambda: |-
auto my_custom_sensor = new UartReadLineSensor(id(projector));
App.register_component(my_custom_sensor);
return {my_custom_sensor};
text_sensors:
id: "uart_readline"
on_value:
then:
- lambda: |-
// Clean up the end of the string
std::string str = x;
str = str.erase(str.size()-1, 1);
// Parse commands and values
std::string command = str.substr(1, str.find("=")-1);
std::string param = str.substr(str.find("=")+1, str.size());
if ((param == "?") || (param == "+") || (param == "-")){
return;
}
if (command == "VOL") {
id(projector_volume).publish_state(atoi(param.c_str()));
} else if (command == "LTIM") {
id(projector_ltim).publish_state(atoi(param.c_str()));
} else if (command == "POW") {
id(projector_power).publish_state(param == "ON");
} else if (command == "SOUR") {
id(projector_source).publish_state(param.c_str());
}
select:
- platform: template
name: ${device_name} Source
id: projector_source
# Change this to the inputs your projector has
options:
- HDMI1
- HDMI2
- USBREADER
set_action:
then:
- lambda: |-
if ((x) != id(projector_source).state) {
std::string c = "\r*SOUR=" + x + "#\r";
id(projector).write_array((const uint8_t*)c.c_str(), c.size());
id(projector_source).publish_state(x);
}
number:
- platform: template
id: projector_volume
step: 1
min_value: 0
max_value: 50
name: ${device_name} Volume
set_action:
then:
- lambda: |-
int target = round(x);
int current = id(projector_volume).state;
int delta = target - current;
for (int i=0; i<abs(delta);i++) {
std::string c = "";
if (delta < 0) {
c = "\r*vol=-#\r";
}
else if (delta > 0){
c = "\r*vol=+#\r";
}
else {
// nothing
}
if (c != "") {
id(projector).write_array((const uint8_t*)c.c_str(), c.size());
}
}
id(projector_volume).publish_state(target);
sensor:
- platform: template
name: ${device_name} Lamp Hours
id: projector_ltim
switch:
- platform: template
name: ${device_name} Power
id: projector_power
turn_on_action:
- uart.write: "\r*pow=on#\r"
turn_off_action:
- uart.write: "\r*pow=off#\r"
interval:
- interval: 10s # not pretty, but works
then:
- uart.write: "\r*pow=?#\r"
- delay: 1s
- if:
condition:
lambda: 'return id(projector_power).state;'
then:
- uart.write: "\r*sour=?#\r"
- delay: 1s
- uart.write: "\r*vol=?#\r"
- delay: 1s
- uart.write: "\r*ltim=?#\r"
else:
- logger.log: "Projector is OFF"

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#include "esphome.h"
class UartReadLineSensor : public Component, public UARTDevice, public TextSensor {
public:
UartReadLineSensor(UARTComponent *parent) : UARTDevice(parent) {}
void setup() override {
// nothing to do here
}
int readline(int readch, char *buffer, int len)
{
static int pos = 0;
int rpos;
if (readch > 0) {
switch (readch) {
case '\n': // Ignore new-lines
break;
case '\r': // Return on CR
rpos = pos;
pos = 0; // Reset position index ready for next time
return rpos;
default:
if (pos < len-1) {
buffer[pos++] = readch;
buffer[pos] = 0;
}
}
}
// No end of line has been found, so return -1.
return -1;
}
void loop() override {
const int max_line_length = 80;
static char buffer[max_line_length];
while (available()) {
if(readline(read(), buffer, max_line_length) > 0) {
publish_state(buffer);
}
}
}
};

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esphome:
name: mediaroom-bridge
includes:
- uart_read_line_sensor.h
logger:
level: DEBUG #makes uart stream available in esphome logstream
baud_rate: 0 #disable logging over uart
uart:
id: uart_bus
tx_pin: D4
rx_pin: RX
baud_rate: 19200
text_sensor:
- platform: custom
lambda: |-
auto my_custom_sensor = new UartReadLineSensor(id(uart_bus));
App.register_component(my_custom_sensor);
return {my_custom_sensor};
text_sensors:
id: "uart_readline"
on_value:
then:
- lambda: |-
// Clean up the end of the string
std::string str = x;
str = str.erase(str.size()-1, 1);
// Parse commands and values
std::string command = str.substr(1, str.find("=")-1);
std::string param = str.substr(str.find("=")+1, str.size());
if ((param == "?") || (param == "+") || (param == "-")){
return;
}
if (command == "POW") {
id(projector_power).publish_state(param == "ON");
}
switch:
- platform: template
name: "HITACHI Projector"
id: projector_power
turn_on_action:
- uart.write: [0xBE, 0xEF, 0x03, 0x06, 0x00, 0xBA, 0xD2, 0x01, 0x00, 0x00, 0x60, 0x01, 0x00]
turn_off_action:
- uart.write: [0xBE, 0xEF, 0x03, 0x06, 0x00, 0x2A, 0xD3, 0x01, 0x00, 0x00, 0x60, 0x00, 0x00]
interval:
- interval: 10s
then:
- uart.write: [0xBE, 0xEF, 0x03, 0x06, 0x00, 0x19, 0xD3, 0x02, 0x00, 0x00, 0x60, 0x00, 0x00]
esp8266:
board: d1_mini
web_server:
port: 80
# Enable Home Assistant API
api:
encryption:
key: "XXXXXXXXXXXXXXXX"
ota:
- platform: esphome
password: "XXXXXXXXXXXXXXX"
wifi:
ssid: "XXXX"
password: "XXXXXXXX"
fast_connect: True
manual_ip:
static_ip: 192.168.1.XXX
gateway: 192.168.1.1
subnet: 255.255.255.0
# Enable fallback hotspot (captive portal) in case wifi connection fails
ap:
ssid: "Mediaroom-Bridge"
password: "XXXXXXXX"
captive_portal:

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<div style="color: rgb(232, 232, 233); background-color: rgb(30, 30, 30); font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace, Menlo, Monaco, "Courier New", monospace; font-size: 12px; line-height: 18px; white-space: pre;"><div>text_sensor:</div><div>- platform: custom</div><div> lambda: |-</div><div><span style="color: rgb(206, 145, 120);"> auto my_custom_sensor = new UartReadLineSensor(id(uart_bus));</span></div><div><span style="color: rgb(206, 145, 120);"> App.register_component(my_custom_sensor);</span></div><div><span style="color: rgb(206, 145, 120);"> return {my_custom_sensor};</span></div><div> text_sensors:</div><div> id: <span style="color: rgb(206, 145, 120);">"uart_readline"</span></div></div>

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esphome:
name: mediaroom-bridge
includes:
- uart_read_line_sensor.h
logger:
level: DEBUG #makes uart stream available in esphome logstream
baud_rate: 0 #disable logging over uart
uart:
id: uart_bus
tx_pin: D4
rx_pin: RX
baud_rate: 19200
switch:
- platform: template
name: "HITACHI Projector"
id: projector_power
assumed_state: True
turn_on_action:
- uart.write: [0xBE, 0xEF, 0x03, 0x06, 0x00, 0xBA, 0xD2, 0x01, 0x00, 0x00, 0x60, 0x01, 0x00]
turn_off_action:
- uart.write: [0xBE, 0xEF, 0x03, 0x06, 0x00, 0x2A, 0xD3, 0x01, 0x00, 0x00, 0x60, 0x00, 0x00]
esp8266:
board: d1_mini
web_server:
port: 80
# Enable Home Assistant API
api:
ota:
- platform: esphome
wifi:
ssid: "XXXX"
password: "XXXXXXXX"
fast_connect: True
manual_ip:
static_ip: 192.168.1.1
gateway: 192.168.1.1
subnet: 255.255.255.0
# Enable fallback hotspot (captive portal) in case wifi connection fails
ap:
ssid: "Mediaroom-Bridge"
password: "XXXXXXXX"
captive_portal:

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esphome:
name: mediaroom-bridge
includes:
- uart_read_line_sensor.h
logger:
level: DEBUG #makes uart stream available in esphome logstream
baud_rate: 0 #disable logging over uart
uart:
id: uart_bus
tx_pin: D4
rx_pin: RX
baud_rate: 19200
text_sensor:
- platform: custom
lambda: |-
auto uart_sensor = new UartReadLineSensor();
App.register_component(uart_sensor);
return {uart_sensor};
text_sensors:
- id: uart_readline
on_value:
then:
- lambda: |-
std::string value = x;
// 检查字符串是否以0xBE, 0xEF等开始，并根据最后一个字节确定状态
if (value.size() >= 26 && value.substr(0, 22) == "0xBE, 0xEF, 0x03, 0x06, 0x00, 0x19, 0xD3, 0x02, 0x00, 0x00, 0x60") {
uint8_t last_byte = strtol(value.substr(24, 2).c_str(), nullptr, 16);
if (last_byte == 0x01) {
id(projector_power).publish_state(true);
} else if (last_byte == 0x00 || last_byte == 0x02) {
id(projector_power).publish_state(false);
}
}
switch:
- platform: template
name: "HITACHI Projector"
id: projector_power
# assumed_state: True
turn_on_action:
- uart.write: [0xBE, 0xEF, 0x03, 0x06, 0x00, 0xBA, 0xD2, 0x01, 0x00, 0x00, 0x60, 0x01, 0x00]
turn_off_action:
- uart.write: [0xBE, 0xEF, 0x03, 0x06, 0x00, 0x2A, 0xD3, 0x01, 0x00, 0x00, 0x60, 0x00, 0x00]
interval:
- interval: 10s
then:
- uart.write: [0xBE, 0xEF, 0x03, 0x06, 0x00, 0x19, 0xD3, 0x02, 0x00, 0x00, 0x60, 0x00, 0x00]
esp8266:
board: d1_mini
web_server:
port: 80
# Enable Home Assistant API
api:
ota:
- platform: esphome
wifi:
ssid: "XXXX"
password: "XXXXXXXX"
fast_connect: True
manual_ip:
static_ip: 192.168.1.1
gateway: 192.168.1.1
subnet: 255.255.255.0
# Enable fallback hotspot (captive portal) in case wifi connection fails
ap:
ssid: "Mediaroom-Bridge"
password: "XXXXXXXX"
captive_portal:

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