mirror of
https://github.com/esp-rs/esp-idf-hal.git
synced 2025-09-29 21:31:17 +00:00
bed45e741e
* Upgrade to e-hal 1.0-rc1 * e-hal is no longer alpha * Fix for ESP IDF < 5 * Unite all delay impls in a single module * Model delays between transactions * SPI: Make queueing it a bit more readable * SPI: Plug delays * Shorten the threshold for the Delay provider * Clippy * Fix the examples * SPI: Detect last transaction in the presence of delays * SPI: Introduce CsPin * SPI: Introduce CsPin * SPI: Mark delays with TODO * Clippy * SPI: Rename CsPin to CsCtl * Transfer_transaction not necessary
34 lines
1.0 KiB
Rust
34 lines
1.0 KiB
Rust
//! Turn an LED on/off depending on the state of a button
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//!
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//! This assumes that a LED is connected to GPIO4.
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//! Additionally this assumes a button connected to GPIO9.
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//! On an ESP32C3 development board this is the BOOT button.
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//!
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//! Depending on your target and the board you are using you should change the pins.
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//! If your board doesn't have on-board LEDs don't forget to add an appropriate resistor.
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use esp_idf_hal::delay::FreeRtos;
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use esp_idf_hal::gpio::*;
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use esp_idf_hal::peripherals::Peripherals;
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fn main() -> anyhow::Result<()> {
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esp_idf_hal::sys::link_patches();
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let peripherals = Peripherals::take().unwrap();
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let mut led = PinDriver::output(peripherals.pins.gpio4)?;
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let mut button = PinDriver::input(peripherals.pins.gpio9)?;
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button.set_pull(Pull::Down)?;
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loop {
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// we are using thread::sleep here to make sure the watchdog isn't triggered
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FreeRtos::delay_ms(10);
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if button.is_high() {
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led.set_low()?;
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} else {
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led.set_high()?;
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}
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}
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}
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