Docs
The Email widget sends a message to an inbox. Your board calls it, the server delivers it.
Use it for: a daily report, an alert you want a record of, a log you forward to someone else. A notification is faster to read, an email stays.
| Setting | What it does |
|---|---|
| To | the address that receives the message, your account address by default |
| Subject | a default subject the sketch can override |
Open these from the canvas: tap Edit, then long press the widget and choose Configure.
Example
A daily summary at the end of the day.
#include <PlynxSimpleEsp32.h>
PlynxTimer timer;
float peakTemp = -99;
void trackPeak()
{
float celsius = analogRead(34) * (3.3 / 4095.0) * 100.0;
if (celsius > peakTemp) {
peakTemp = celsius;
}
}
void sendReport()
{
String body = "Peak temperature today: " + String(peakTemp, 1) + " C";
Plynx.email("Greenhouse report", body.c_str());
peakTemp = -99;
}
void setup()
{
Serial.begin(115200);
// Auto setup: WiFi and the Plynx token are configured from the app.
//
// To provide them directly in the sketch instead, use:
// Plynx.begin(auth, ssid, pass);
Plynx.begin();
timer.setInterval(60000L, trackPeak);
timer.setInterval(86400000L, sendReport);
}
void loop()
{
Plynx.run();
timer.run();
}Plynx.email(subject, message) sends to the address in the widget settings.
Plynx.email(address, subject, message) sends somewhere else.
Email is slow and rate limited. Use it for something you want to keep, and use a notification for something you need to know now.
Troubleshooting
| Problem | Check |
|---|---|
| Nothing arrives | look in the spam folder first |
| Only the first email arrives | the server is rate limiting; send less often |
| Message is cut off | keep the body short, it is not a file transfer |
| Wrong address | the To field in the widget settings, or pass the address in code |