Read DHT sensor data formatted in JSON over a serial interface and log it.
This crate is still under development and is not stable.
This crate is for logging measurement from a device reading DHT sensors and
writing the measurements over a serial connection. The hardware producing the
data does not matter, but it must be logging data over serial in JSON with
fields for temperature, humidity, and heat index. Here's a pretty version of an
example reading:
json
{
"sensor_label": {
"t": 20.0,
"h": 50.0,
"hi": 20.0
},
"another_sensor": {
"error": "some error message"
}
}
This code has been tested using arduino-dht-logger as the hardware source providing data over serial.
The following example creates a DHT logger from a configuration file, then reads data from the serial port and logs it to whatever logging channels are configured.
```rust use std::path::Path; use dht_logger::DhtLogger;
let configpath = Path::new("exampleconfig.yaml"); let logger = DhtLogger::fromconfig(configpath); logger.readsensorandlogdata(10); ```
The cross-compilation procedure for Raspberry Pi is modified from
rust-embedded/cross to build against
Debian Buster instead of Ubuntu. Currently the Raspberry Pi Zero and 4B models
are supported. To set up the cross-compilation for both the 4B and zero, run
the bootstrap script:
./bootstrap.sh
After ./bootstrap.sh is finished, the build.sh script can be run with
either 4b or zero as the arguments to determine the target.