t/esp8266_awair_data_grabber
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+ show startup and Wi-Fi status on the OLED

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+ fetch data immediately after connecting
+ empty display and a shorter retry interval for failed requests
~ poll normally every 10 seconds and use the configured local endpoint
~ keep previous readings visible and mark them as outdated on failure
~ set the font before drawing status text and tidy serial messages
- generic failure screen and placeholder network settings
This commit is contained in:
Ano-sys
2026-10-02 17:22:33 +02:00
parent 455aefe8db
commit 0df1f47461
1 changed files with 47 additions and 17 deletions
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awair_data_grabber/awair_data_grabber.ino
+47 -17
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@@ -13,12 +13,13 @@
#define OLED_SCL 14 #define OLED_SCL 14
#define OLED_SDA 12 #define OLED_SDA 12
#define UPDATE_INTERVAL_MS 1000 #define UPDATE_INTERVAL_MS 10000
#define SHORT_UPDATE_INTERVAL_MS (UPDATE_INTERVAL_MS / 10)
#define SERVER_URL "http://awair-server/air-data/latest" #define SERVER_URL "http://[IP_ADDRESS]/air-data/latest"
#define SSID "-" #define SSID "[SSID]"
#define PASSWD "-" #define PASSWD "[PASS]"
WiFiClient client; WiFiClient client;
HTTPClient http; HTTPClient http;
@@ -80,13 +81,21 @@ class Panel{
panel.begin(); panel.begin();
} }
void show_failed(void){ void show_outdated(void){
panel.clearBuffer();
panel.setFont(u8g2_font_ncenB08_tr); panel.setFont(u8g2_font_ncenB08_tr);
panel.drawStr(0, 10, "Something failed"); panel.drawStr(71, 9, "(outdated)");
panel.sendBuffer(); panel.sendBuffer();
} }
void print_header(const char* msg){
panel.clearBuffer();
panel.setFont(u8g2_font_ncenB08_tr);
panel.drawStr(0, 9, msg);
panel.sendBuffer();
}
void print_empty_data(){ update({}); }
void update(const AwairData& data){ void update(const AwairData& data){
char buffer[16]; char buffer[16];
@@ -175,15 +184,31 @@ AwairData data;
void setup() { void setup() {
Serial.begin(115200); Serial.begin(115200);
panel.begin(); panel.begin();
panel.print_header("Starting...");
http.setTimeout(3000); http.setTimeout(3000);
WiFi.begin(SSID, PASSWD); Serial.println("\nConnecting to WiFi...");
while(WiFi.status() != WL_CONNECTED) delay(100); panel.print_header("Connecting to WiFi...");
Serial.println("Connected!"); WiFi.begin(SSID, PASSWD);
while(WiFi.status() != WL_CONNECTED){
delay(100);
Serial.print(".");
}
Serial.println("\nConnected!");
panel.print_header("Connected to WiFi!");
if(request_data(&data) != 0){ panel.print_empty_data(); }
else{
Serial.println("Got new data -> Updating...");
panel.update(data);
data.reset_updated();
}
delay(SHORT_UPDATE_INTERVAL_MS);
} }
void loop() { void loop() {
@@ -195,18 +220,23 @@ void loop() {
start = current; start = current;
*/ */
size_t update_interval = UPDATE_INTERVAL_MS;
if(WiFi.status() != WL_CONNECTED){ delay(100); return; } if(WiFi.status() != WL_CONNECTED){ delay(100); return; }
Serial.println("Requesting data..."); Serial.println("Requesting data...");
if(request_data(&data) != 0){ panel.show_failed(); } if(request_data(&data) != 0){
panel.show_outdated();
if(data.has_updated()){ update_interval = SHORT_UPDATE_INTERVAL_MS;
}
else if(data.has_updated()){
Serial.println("Got new data -> Updating..."); Serial.println("Got new data -> Updating...");
panel.update(data); panel.update(data);
data.reset_updated(); data.reset_updated();
} }
else Serial.println("Got data but nothing new!"); else Serial.println("No new data!");
Serial.println("---------- ---------- ----------\n"); Serial.println("\n---------- ---------- ----------\n");
delay(UPDATE_INTERVAL_MS); // simple delay is enough <- no state machine
delay(update_interval); // simple delay is enough <- no state machine
} }