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deadmans_hand
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using open-drain for power on signal, added option for sleep time.

This commit is contained in:
leca 2025-04-10 22:22:57 +03:00
parent 3cd3051149
commit b0e9dfea36
2 changed files with 12 additions and 9 deletions
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1
README.md
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@ -13,6 +13,7 @@ cp src/secrets.h.template src/secrets.h
nano src/secrets.h nano src/secrets.h
``` ```
If you wish to change GPIO pins, please, do it in ``src/src.info`` If you wish to change GPIO pins, please, do it in ``src/src.info``
Flash the sketch in your board Flash the sketch in your board
2. Connect pin STATUS_PIN to anything in your server that has voltage when the server is running (usually some led on the forward panel) 2. Connect pin STATUS_PIN to anything in your server that has voltage when the server is running (usually some led on the forward panel)

18
src/src.ino
View File

@ -10,6 +10,7 @@
#define STATUS_PIN D5 #define STATUS_PIN D5
#define WAKE_PIN D6 #define WAKE_PIN D6
#define SLEEP_TIME 5 // seconds
static bool wifi_lost = false; static bool wifi_lost = false;
static bool server_is_off = false; static bool server_is_off = false;
@ -17,23 +18,22 @@ static bool server_is_off = false;
void setup() { void setup() {
Serial.begin(9600); Serial.begin(9600);
WiFi.mode(WIFI_STA); WiFi.mode(WIFI_STA);
WiFi.disconnect(); WiFi.disconnect();
Serial.println("Connecting to a Wi-Fi network"); Serial.println("Connecting to a Wi-Fi network");
WiFi.begin(WIFI_SSID, WIFI_PASSWORD); WiFi.begin(WIFI_SSID, WIFI_PASSWORD);
while (WiFi.status() == WL_IDLE_STATUS) delay(100); while (WiFi.status() == WL_IDLE_STATUS) delay(1000);
Serial.println("Wi-Fi connected"); Serial.println("Wi-Fi connected");
pinMode(STATUS_PIN, INPUT); pinMode(STATUS_PIN, INPUT);
pinMode(WAKE_PIN, OUTPUT); pinMode(WAKE_PIN, INPUT);
} }
void loop() { void loop() {
wifi_lost = WiFi.status() == 1 || WiFi.status() == 5 || WiFi.status() == 7; wifi_lost = WiFi.status() == WL_NO_SSID_AVAIL || WiFi.status() == WL_CONNECTION_LOST || WiFi.status() == 7;
server_is_off = digitalRead(STATUS_PIN) != HIGH; server_is_off = digitalRead(STATUS_PIN) != HIGH;
Serial.println("Checking the status"); Serial.println("Checking the status");
@ -46,13 +46,15 @@ void loop() {
Serial.println("The power seems to be down. Waiting for the power to restore and send turn on signal to the server."); Serial.println("The power seems to be down. Waiting for the power to restore and send turn on signal to the server.");
// Wait untill Wi-Fi is available (i.e. the power is back) // Wait untill Wi-Fi is available (i.e. the power is back)
while (WiFi.status() != WL_CONNECTED) delay(100); while (WiFi.status() != WL_CONNECTED) delay(100);
digitalWrite(WAKE_PIN, HIGH); pinMode(WAKE_PIN, OUTPUT);
delay(100); delay(100);
digitalWrite(WAKE_PIN, LOW); pinMode(WAKE_PIN, INPUT);
Serial.println("Signal sent"); Serial.println("Signal sent");
} else { } else {
Serial.println("Everyting's okay, sleeping 5 secs"); Serial.print("Everyting's okay, sleeping ");
Serial.print(SLEEP_TIME);
Serial.println(" secs.");
} }
delay(5000); delay(SLEEP_TIME * 1000);
} }