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Sanity-check sensor readings, display time

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This commit is contained in:
FliegendeWurst 2021-10-09 12:07:21 +02:00
parent d8f97437e9
commit d8b6ffec7e
1 changed files with 12 additions and 5 deletions
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15
src/main.rs
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@ -135,17 +135,19 @@ fn main() {
let mut chip = Chip::new("/dev/gpiochip0").unwrap(); let mut chip = Chip::new("/dev/gpiochip0").unwrap();
let line = chip.get_line(26).unwrap(); let line = chip.get_line(26).unwrap();
for _attempt in 0..5 { for _attempt in 0..5 {
let time = std::time::SystemTime::now().duration_since(SystemTime::UNIX_EPOCH).unwrap().as_secs(); let time = std::time::SystemTime::now().duration_since(SystemTime::UNIX_EPOCH).unwrap();
if let Ok((rh, temp)) = raspi_oled::am2302_reading(&line) { if let Ok((rh, temp)) = raspi_oled::am2302_reading(&line) {
database.execute("INSERT INTO sensor_readings (time, humidity, celsius) VALUES (?1, ?2, ?3)", params![time, rh, temp]).unwrap(); if rh > 0 && temp < 500 {
display_on_ssd1306(rh, temp); database.execute("INSERT INTO sensor_readings (time, humidity, celsius) VALUES (?1, ?2, ?3)", params![time.as_secs(), rh, temp]).unwrap();
display_on_ssd1306(rh, temp, time);
break; break;
} }
} }
} }
}
fn display_on_ssd1306(rh: u16, temp: u16) { fn display_on_ssd1306(rh: u16, temp: u16, time: Duration) {
let i2c = I2cdev::new("/dev/i2c-1").unwrap(); let i2c = I2cdev::new("/dev/i2c-1").unwrap();
let interface = I2CDisplayInterface::new(i2c); let interface = I2CDisplayInterface::new(i2c);
let mut disp = Ssd1306::new( let mut disp = Ssd1306::new(
@ -165,6 +167,11 @@ fn display_on_ssd1306(rh: u16, temp: u16) {
Text::new(&text, Point::new(0, 10), text_style) Text::new(&text, Point::new(0, 10), text_style)
.draw(&mut disp) .draw(&mut disp)
.unwrap(); .unwrap();
let secs = time.as_secs();
let time = format!("{:02}:{:02} Uhr", (secs / 3600 + 2) % 24, secs / 60 % 60);
Text::new(&time, Point::new(0, 32), text_style)
.draw(&mut disp)
.unwrap();
disp.flush().unwrap(); disp.flush().unwrap();
/* /*
sleep(Duration::from_secs(2)); sleep(Duration::from_secs(2));