mirror of
https://github.com/revspace/operame
synced 2024-12-04 21:57:30 +00:00
Support both AQC and MH-Z19B
This commit is contained in:
Juerd Waalboer
parent
6f4ac2b01b
commit
420868585d
179
operame.ino
179
operame.ino
@ -3,7 +3,7 @@
|
||||
#include <MQTT.h>
|
||||
#include <SPIFFS.h>
|
||||
#include <WiFiSettings.h>
|
||||
//#include <MHZ19.h>
|
||||
#include <MHZ19.h>
|
||||
#include <ArduinoOTA.h>
|
||||
#include <SPI.h>
|
||||
#include <TFT_eSPI.h>
|
||||
@ -20,13 +20,16 @@ int co2_warning;
|
||||
int co2_critical;
|
||||
int co2_blink;
|
||||
|
||||
int co2_init = 410; // magic value reported while initializing
|
||||
enum Driver { AQC, MHZ };
|
||||
Driver driver;
|
||||
|
||||
int mhz_co2_init = 410; // magic value reported while initializing
|
||||
|
||||
MQTTClient mqtt;
|
||||
HardwareSerial hwserial1(1);
|
||||
TFT_eSPI display;
|
||||
TFT_eSprite sprite(&display);
|
||||
//MHZ19 mhz;
|
||||
MHZ19 mhz;
|
||||
String mqtt_topic;
|
||||
String mqtt_template;
|
||||
bool add_units;
|
||||
@ -154,68 +157,19 @@ void setup() {
|
||||
|
||||
hwserial1.begin(9600, SERIAL_8N1, 27, 26);
|
||||
|
||||
/*
|
||||
|
||||
// senseair?
|
||||
// hwserial1.print("\xfe\x41\0\x80\x01\x10\x28\x7e");
|
||||
// delay(1000);
|
||||
// hwserial1.print("\xfe\x44\0\0\x08\x20\x79\x3c");
|
||||
// nope
|
||||
|
||||
// HCC-ding?
|
||||
hwserial1.print("\x5c\x01\xc5\0\0\0\0\0\xDD");
|
||||
// nope
|
||||
|
||||
// zelfde protocol maar dan anders?
|
||||
uint8_t p[9];
|
||||
p[1] = 0x01;
|
||||
p[2] = 0xc5;
|
||||
|
||||
while (1) {
|
||||
for (int i = 255; i < 256; i++) {
|
||||
p[0] = i;
|
||||
int sum = 0;
|
||||
for (int c = 0; c < 8; c++) {
|
||||
Serial.print(p[c], HEX);
|
||||
Serial.print(" ");
|
||||
sum += p[c];
|
||||
if (aqc_get_co2() >= 0) {
|
||||
driver = AQC;
|
||||
hwserial1.setTimeout(100);
|
||||
Serial.println("Using AQC driver.");
|
||||
} else {
|
||||
driver = MHZ;
|
||||
mhz_setup();
|
||||
Serial.println("Using MHZ driver.");
|
||||
}
|
||||
p[8] = 255 - (sum % 256);
|
||||
Serial.println(p[8], HEX);
|
||||
hwserial1.write(p, 9);
|
||||
delay(50);
|
||||
if (hwserial1.available()) {
|
||||
Serial.println("JAAAAAAAAAAAAAAAAAAAA");
|
||||
while (hwserial1.available()) {
|
||||
int c = hwserial1.read();
|
||||
if (c != -1) Serial.println(c, HEX);
|
||||
}
|
||||
}
|
||||
delay(1000);
|
||||
}
|
||||
}
|
||||
|
||||
while (1) {
|
||||
int c = hwserial1.read();
|
||||
if (c != -1) Serial.println(c, HEX);
|
||||
}
|
||||
|
||||
*/
|
||||
//mhz.begin(hwserial1);
|
||||
|
||||
display_logo();
|
||||
delay(2000);
|
||||
|
||||
//check_sensor();
|
||||
|
||||
//// mhz.setFilter(true, true); Library filter doesn't handle 0436
|
||||
//mhz.autoCalibration(true);
|
||||
//char v[5];
|
||||
//mhz.getVersion(v);
|
||||
//v[4] = '\0';
|
||||
//if (strcmp("0436", v) == 0) co2_init = 436;
|
||||
//Serial.printf("MH-Z19 firmware version %s\n", v);
|
||||
|
||||
WiFiSettings.hostname = "operame-";
|
||||
wifi_enabled = WiFiSettings.checkbox("operame_wifi", false, "WiFi-verbinding gebruiken");
|
||||
ota_enabled = WiFiSettings.checkbox("operame_ota", false, "Draadloos herprogrammeren inschakelen. (Gebruikt portaalwachtwoord!)") && wifi_enabled;
|
||||
@ -276,35 +230,83 @@ void connect_mqtt() {
|
||||
}
|
||||
}
|
||||
|
||||
void check_sensor() {
|
||||
/*
|
||||
if (mhz.errorCode == RESULT_OK) return;
|
||||
while (1) {
|
||||
delay(1000);
|
||||
mhz.verify();
|
||||
if (mhz.errorCode == RESULT_OK) return;
|
||||
display_big("sensorfout", TFT_RED);
|
||||
}
|
||||
*/
|
||||
}
|
||||
int aqc_get_co2() {
|
||||
static bool initialized = false;
|
||||
|
||||
int get_co2() {
|
||||
const uint8_t command[9] = { 0xff, 0x01, 0xc5, 0, 0, 0, 0, 0, 0x3a };
|
||||
char response[9];
|
||||
int CO2 = -1;
|
||||
|
||||
for (int attempt = 0; attempt < 3; attempt++) {
|
||||
hwserial1.flush();
|
||||
int limit = 20; // .available() sometimes stays true
|
||||
while(hwserial1.available() && --limit) hwserial1.read();
|
||||
|
||||
hwserial1.write(command, sizeof(command));
|
||||
delay(50);
|
||||
char response[9];
|
||||
if (hwserial1.available()) {
|
||||
while (hwserial1.available()) {
|
||||
int c = hwserial1.readBytes(response, sizeof(response));
|
||||
if (c != sizeof(response)) return 0;
|
||||
}
|
||||
if (c != sizeof(response)) {
|
||||
continue;
|
||||
}
|
||||
uint8_t checksum = 255;
|
||||
for (int i = 0; i < sizeof(response) - 1; i++) {
|
||||
Serial.printf("%02x %d\n", response[i], response[i]);
|
||||
checksum -= response[i];
|
||||
}
|
||||
if (response[8] != checksum) return 0;
|
||||
return response[2] * 256 + response[3];
|
||||
if (response[8] == checksum) {
|
||||
CO2 = response[2] * 256 + response[3];
|
||||
break;
|
||||
}
|
||||
delay(50);
|
||||
}
|
||||
|
||||
if (CO2 < 0) {
|
||||
initialized = false;
|
||||
return CO2;
|
||||
}
|
||||
|
||||
if (!initialized && (CO2 == 9999 || CO2 == 400)) return 0;
|
||||
initialized = true;
|
||||
return CO2;
|
||||
}
|
||||
|
||||
void mhz_setup() {
|
||||
mhz.begin(hwserial1);
|
||||
// mhz.setFilter(true, true); Library filter doesn't handle 0436
|
||||
mhz.autoCalibration(true);
|
||||
char v[5];
|
||||
mhz.getVersion(v);
|
||||
v[4] = '\0';
|
||||
if (strcmp("0436", v) == 0) mhz_co2_init = 436;
|
||||
}
|
||||
|
||||
int mhz_get_co2() {
|
||||
int CO2 = mhz.getCO2();
|
||||
int unclamped = mhz.getCO2(false);
|
||||
|
||||
if (mhz.errorCode != RESULT_OK) {
|
||||
delay(500);
|
||||
mhz_setup();
|
||||
return -1;
|
||||
}
|
||||
|
||||
// reimplement filter from library, but also checking for 436 because our
|
||||
// sensors (firmware 0436, coincidence?) return that instead of 410...
|
||||
if (unclamped == mhz_co2_init && CO2 - unclamped >= 10) return 0;
|
||||
|
||||
// No known sensors support >10k PPM (library filter tests for >32767)
|
||||
if (CO2 > 10000 || unclamped > 10000) return 0;
|
||||
|
||||
return CO2;
|
||||
}
|
||||
|
||||
int get_co2() {
|
||||
if (driver == AQC) return aqc_get_co2();
|
||||
if (driver == MHZ) return mhz_get_co2();
|
||||
|
||||
// Should be unreachable
|
||||
ESP.restart();
|
||||
return -1; // suppress warning
|
||||
}
|
||||
|
||||
void loop() {
|
||||
@ -315,14 +317,14 @@ void loop() {
|
||||
|
||||
int CO2 = get_co2();
|
||||
|
||||
// No known sensors support >10k PPM (library filter tests for >32767)
|
||||
// if (CO2 > 10000 || unclamped > 10000) CO2 = 0;
|
||||
|
||||
// check_sensor();
|
||||
|
||||
if (CO2 < 0) {
|
||||
display_big("sensorfout", TFT_RED);
|
||||
}
|
||||
else if (CO2 == 0) {
|
||||
display_big("wacht...");
|
||||
}
|
||||
else {
|
||||
Serial.println(CO2);
|
||||
|
||||
if (CO2) {
|
||||
// some MH-Z19's go to 10000 but the display has space for 4 digits
|
||||
if (CO2 > 9999) CO2 = 9999;
|
||||
|
||||
@ -335,15 +337,12 @@ void loop() {
|
||||
message.replace("{}", String(CO2));
|
||||
retain(mqtt_topic, message);
|
||||
}
|
||||
} else {
|
||||
display_big("wacht...");
|
||||
}
|
||||
|
||||
while (millis() - start < 6000) {
|
||||
if (CO2) display_ppm(CO2); // repeat, for blinking
|
||||
if (CO2 > 0) display_ppm(CO2); // repeat, for blinking
|
||||
if (ota_enabled) ArduinoOTA.handle();
|
||||
check_buttons();
|
||||
delay(20);
|
||||
}
|
||||
Serial.println(esp_get_free_heap_size());
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user