From eb63191b080a8b0f907f2b5bcecc383acfeb3044 Mon Sep 17 00:00:00 2001
From: Adam Macdonald <72780006+twokilohertz@users.noreply.github.com>
Date: Sat, 22 Feb 2025 04:49:48 +0000
Subject: [PATCH] Initialising the display
---
Cargo.lock | 108 +++++++++++++++++++++++++++++++++++++
Cargo.toml | 3 ++
src/main.rs | 151 +++++++++++++++++++++++++++++++++++-----------------
3 files changed, 212 insertions(+), 50 deletions(-)
diff --git a/Cargo.lock b/Cargo.lock
index 6cc14bb..16e2f77 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -8,6 +8,18 @@ version = "0.7.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "7c02d123df017efcdfbd739ef81735b36c5ba83ec3c59c80a9d7ecc718f92e50"
+[[package]]
+name = "autocfg"
+version = "1.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ace50bade8e6234aa140d9a2f552bbee1db4d353f69b8217bc503490fc1a9f26"
+
+[[package]]
+name = "az"
+version = "1.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7b7e4c2464d97fe331d41de9d5db0def0a96f4d823b8b32a2efd503578988973"
+
[[package]]
name = "bare-metal"
version = "0.2.5"
@@ -29,6 +41,12 @@ version = "0.14.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "2d7e60934ceec538daadb9d8432424ed043a904d8e0243f3c6446bce549a46ac"
+[[package]]
+name = "byte-slice-cast"
+version = "1.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c3ac9f8b63eca6fd385229b3675f6cc0dc5c8a5c8a54a59d4f52ffd670d87b0c"
+
[[package]]
name = "byteorder"
version = "1.5.0"
@@ -73,6 +91,24 @@ version = "1.2.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "790eea4361631c5e7d22598ecd5723ff611904e3344ce8720784c93e3d83d40b"
+[[package]]
+name = "display-interface"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7ba2aab1ef3793e6f7804162debb5ac5edb93b3d650fbcc5aeb72fcd0e6c03a0"
+
+[[package]]
+name = "display-interface-spi"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f86b9ec30048b1955da2038fcc3c017f419ab21bb0001879d16c0a3749dc6b7a"
+dependencies = [
+ "byte-slice-cast",
+ "display-interface",
+ "embedded-hal 1.0.0",
+ "embedded-hal-async",
+]
+
[[package]]
name = "either"
version = "1.13.0"
@@ -88,6 +124,29 @@ dependencies = [
"stable_deref_trait",
]
+[[package]]
+name = "embedded-graphics"
+version = "0.8.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0649998afacf6d575d126d83e68b78c0ab0e00ca2ac7e9b3db11b4cbe8274ef0"
+dependencies = [
+ "az",
+ "byteorder",
+ "embedded-graphics-core",
+ "float-cmp",
+ "micromath",
+]
+
+[[package]]
+name = "embedded-graphics-core"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ba9ecd261f991856250d2207f6d8376946cd9f412a2165d3b75bc87a0bc7a044"
+dependencies = [
+ "az",
+ "byteorder",
+]
+
[[package]]
name = "embedded-hal"
version = "0.2.7"
@@ -113,6 +172,16 @@ dependencies = [
"embedded-hal 1.0.0",
]
+[[package]]
+name = "embedded-hal-bus"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "513e0b3a8fb7d3013a8ae17a834283f170deaf7d0eeab0a7c1a36ad4dd356d22"
+dependencies = [
+ "critical-section",
+ "embedded-hal 1.0.0",
+]
+
[[package]]
name = "embedded-hal-nb"
version = "1.0.0"
@@ -129,6 +198,15 @@ version = "0.6.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "edd0f118536f44f5ccd48bcb8b111bdc3de888b58c74639dfb034a357d0f206d"
+[[package]]
+name = "float-cmp"
+version = "0.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "98de4bbd547a563b716d8dfa9aad1cb19bfab00f4fa09a6a4ed21dbcf44ce9c4"
+dependencies = [
+ "num-traits",
+]
+
[[package]]
name = "frunk"
version = "0.4.3"
@@ -217,6 +295,12 @@ version = "0.4.25"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "04cbf5b083de1c7e0222a7a51dbfdba1cbe1c6ab0b15e29fff3f6c077fd9cd9f"
+[[package]]
+name = "micromath"
+version = "2.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c3c8dda44ff03a2f238717214da50f65d5a53b45cd213a7370424ffdb6fae815"
+
[[package]]
name = "nb"
version = "0.1.3"
@@ -232,6 +316,15 @@ version = "1.1.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "8d5439c4ad607c3c23abf66de8c8bf57ba8adcd1f129e699851a6e43935d339d"
+[[package]]
+name = "num-traits"
+version = "0.2.19"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "071dfc062690e90b734c0b2273ce72ad0ffa95f0c74596bc250dcfd960262841"
+dependencies = [
+ "autocfg",
+]
+
[[package]]
name = "num_enum"
version = "0.5.11"
@@ -263,11 +356,14 @@ name = "pico-enviro-sensor"
version = "0.1.0"
dependencies = [
"critical-section",
+ "embedded-graphics",
"embedded-hal 1.0.0",
+ "embedded-hal-bus",
"fugit",
"rp235x-hal",
"rtt-target",
"scd4x",
+ "ssd1351",
]
[[package]]
@@ -476,6 +572,18 @@ version = "0.1.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "5f179d4e11094a893b82fff208f74d448a7512f99f5a0acbd5c679b705f83ed9"
+[[package]]
+name = "ssd1351"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "21c426aced0940ed7c25b8134d6a0bf9745ade9f788ca54bec14c99e67120d6a"
+dependencies = [
+ "display-interface",
+ "display-interface-spi",
+ "embedded-graphics-core",
+ "embedded-hal 1.0.0",
+]
+
[[package]]
name = "stable_deref_trait"
version = "1.2.0"
diff --git a/Cargo.toml b/Cargo.toml
index b697393..d7d37d6 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -19,6 +19,9 @@ scd4x = { git = "https://github.com/twokilohertz/scd4x-rs.git", branch = "conver
"scd41",
] }
rtt-target = "0.6.1"
+ssd1351 = "0.5.0"
+embedded-hal-bus = "0.3.0"
+embedded-graphics = "0.8.1"
# Super-optimised release build, maximum performance, minimal debuggability
# Build with cargo build --profile dist
diff --git a/src/main.rs b/src/main.rs
index a824c7c..9d7f03f 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,15 +1,32 @@
#![no_std]
#![no_main]
-use embedded_hal::delay::DelayNs;
-use fugit::RateExtU32;
-use rtt_target::{rprintln, rtt_init_print};
-
// RP235x HAL
use rp235x_hal as hal;
+use hal::gpio::FunctionSpi;
+use hal::spi::Spi;
+
+// Display
+use ssd1351::{
+ mode::GraphicsMode,
+ prelude::SPIInterface,
+ properties::{DisplayRotation, DisplaySize},
+};
+
// Sensor
-use scd4x::Scd4x;
+// use scd4x::Scd4x;
+
+use embedded_graphics::{
+ pixelcolor::Rgb565,
+ prelude::{Point, Primitive, RgbColor, Size},
+ primitives::{PrimitiveStyleBuilder, Rectangle},
+ Drawable,
+};
+
+use embedded_hal::spi::MODE_0;
+use fugit::RateExtU32;
+use rtt_target::{rprintln, rtt_init_print};
mod constants;
@@ -50,63 +67,97 @@ fn main() -> ! {
rprintln!("Core RP2350 hardware initialisation successful");
- // Initialise SCD41 sensor
- let i2c0 = hal::I2C::i2c0(
- peripherals.I2C0,
- pins.gpio4.reconfigure(), // Pin 6 on Pico 2 (SDA)
- pins.gpio5.reconfigure(), // Pin 7 on Pico 2 (SCL)
- 400.kHz(),
+ // Display
+
+ let mosi_pin = pins.gpio19.into_function::<FunctionSpi>();
+ let sclk_pin = pins.gpio18.into_function::<FunctionSpi>();
+ let cs_pin = pins.gpio17.into_push_pull_output();
+ let dc_pin = pins.gpio20.into_push_pull_output();
+ let mut rst_pin = pins.gpio21.into_push_pull_output();
+
+ // SPI initialisation
+ let spi_pins = (mosi_pin, sclk_pin);
+ let spi = Spi::<_, _, _, 8>::new(peripherals.SPI0, spi_pins).init(
&mut peripherals.RESETS,
&clocks.peripheral_clock,
+ 16_u32.MHz(),
+ MODE_0,
);
+ let spi_device = embedded_hal_bus::spi::ExclusiveDevice::new_no_delay(spi, cs_pin).unwrap();
+ let spi_interface = SPIInterface::new(spi_device, dc_pin);
- timer.delay_ms(30); // Power-up delay
- let mut scd41 = Scd4x::new(i2c0, timer);
- scd41.wake_up();
+ let mut display: GraphicsMode<_> = ssd1351::builder::Builder::new()
+ .with_size(DisplaySize::Display128x128)
+ .with_rotation(DisplayRotation::Rotate0)
+ .connect_interface(spi_interface)
+ .into();
+ display.reset(&mut rst_pin, &mut timer).unwrap();
+ display.init().unwrap();
- match scd41.reinit() {
- Ok(_) => rprintln!("Initialised SCD41"),
- Err(error) => rprintln!("Failed to initialise SCD41: {:?}", error),
- }
- timer.delay_ms(30); // Soft reset delay
+ let rect = Rectangle::new(Point::new(0, 40), Size::new(40, 20)).into_styled(
+ PrimitiveStyleBuilder::new()
+ .fill_color(Rgb565::CYAN)
+ .build(),
+ );
+ rect.draw(&mut display).unwrap();
- match scd41.serial_number() {
- Ok(serial) => rprintln!("SCD41 serial number: {}", serial),
- Err(error) => rprintln!("SCD41 did not respond to get_serial_number: {:?}", error),
- }
+ // // Initialise SCD41 sensor
+ // let i2c0 = hal::I2C::i2c0(
+ // peripherals.I2C0,
+ // pins.gpio4.reconfigure(), // Pin 6 on Pico 2 (SDA)
+ // pins.gpio5.reconfigure(), // Pin 7 on Pico 2 (SCL)
+ // 400.kHz(),
+ // &mut peripherals.RESETS,
+ // &clocks.peripheral_clock,
+ // );
- match scd41.self_test_is_ok() {
- Ok(ok) => {
- if ok {
- rprintln!("SCD41 reported successful self-test")
- } else {
- rprintln!("SCD41 reported unsuccessful self-test!")
- }
- }
- Err(_) => rprintln!("SCD41 failed to perform self-test"),
- }
+ // timer.delay_ms(30); // Power-up delay
+ // let mut scd41 = Scd4x::new(i2c0, timer);
+ // scd41.wake_up();
- match scd41.start_periodic_measurement() {
- Ok(_) => rprintln!("Configured sensor to measure every 5 seconds"),
- Err(error) => rprintln!("SCD41 start_periodic_measurement() failed: {:?}", error),
- }
+ // match scd41.reinit() {
+ // Ok(_) => rprintln!("Initialised SCD41"),
+ // Err(error) => rprintln!("Failed to initialise SCD41: {:?}", error),
+ // }
+ // timer.delay_ms(30); // Soft reset delay
- loop {
- timer.delay_ms(5010);
- match scd41.measurement() {
- Ok(data) => rprintln!(
- "CO2: {}, temperature: {}, humidity: {}",
- data.co2,
- data.temperature,
- data.humidity
- ),
- Err(error) => rprintln!("SCD41 get_measurement() failed: {:?}", error),
- }
- }
+ // match scd41.serial_number() {
+ // Ok(serial) => rprintln!("SCD41 serial number: {}", serial),
+ // Err(error) => rprintln!("SCD41 did not respond to get_serial_number: {:?}", error),
+ // }
+
+ // match scd41.self_test_is_ok() {
+ // Ok(ok) => {
+ // if ok {
+ // rprintln!("SCD41 reported successful self-test")
+ // } else {
+ // rprintln!("SCD41 reported unsuccessful self-test!")
+ // }
+ // }
+ // Err(_) => rprintln!("SCD41 failed to perform self-test"),
+ // }
+
+ // match scd41.start_periodic_measurement() {
+ // Ok(_) => rprintln!("Configured sensor to measure every 5 seconds"),
+ // Err(error) => rprintln!("SCD41 start_periodic_measurement() failed: {:?}", error),
+ // }
// loop {
- // hal::arch::wfi();
+ // timer.delay_ms(5010);
+ // match scd41.measurement() {
+ // Ok(data) => rprintln!(
+ // "CO2: {}, temperature: {}, humidity: {}",
+ // data.co2,
+ // data.temperature,
+ // data.humidity
+ // ),
+ // Err(error) => rprintln!("SCD41 get_measurement() failed: {:?}", error),
+ // }
// }
+
+ loop {
+ hal::arch::wfi();
+ }
}
#[inline(never)]