st7735-lcd-examples's Introduction

st7735-lcd-examples

Usage examples for the st7735-lcd Rust crate

Building

Metro M4

cd metro-m4-examples
cargo build --release --examples --target=thumbv7em-none-eabihf

STM32F103 Blue Pill

cd blue-pill-examples
cargo build --release --examples --target=thumbv7m-none-eabi

STM32F411CE Black Pill

Build with:

cd black-pill-examples
cargo build --release --example draw_ferris

create a bin file and flash in DFU-Mode. To get to the DFU-Mode hold the BOOT0 button while pressing the NRST button. To flash use:

cd black-pill-examples
cargo objcopy  --release --example draw_ferris -- -O binary draw_ferris.bin
sudo dfu-util -d 0483:df11 -a 0 -s 0x08000000:leave -D draw_ferris.bin

Nucleo F411RE

cd nucleo-411re-examples
cargo build --release --examples --target=thumbv7em-none-eabihf

Raspberry Pi Pico

cd rp2040-examples
cargo build --release --example draw_ferris

M5Stamp C3U Mate

cd esp32c3-examples
cargo build --release --example draw_ferris

Wiring

Metro M4

ST7735 Pin	Metro M4 Pin
GND	GND
VCC	5V
SCL/SCK	SCK (see picture)
SDA/MOSI	MOSI (see picture)
RES/RST	D1
DC	D0
CS	D2 or GND
BLK	Not connected

Blue Pill

ST7735 Pin	Blue Pill Pin
GND	G
VCC	5V
SCL/SCK	A5
SDA/MOSI	A7
RES/RST	B1
DC	B0
CS	G
BLK	Not connected

Black Pill

ST7735 Pin	Black Pill Pin
GND	G
VCC	5V
SCL/SCK	A5
SDA/MOSI/DIN	A7
RES/RST	B1
DC	B0
CS	G or PA4
BL	3V3

Nucleo F411RE

ST7735 Pin	Nucleo F411RE Pin
GND	GND
VCC	5V
SCL/SCK	SCK/D13
SDA/MOSI	PWM/MOSI/D11
RES/RST	A1
DC	A0
CS	GND
BLK	Not connected

Raspberry Pi Pico

ST7735 Pin	Raspberry Pi Pico Pin
GND	GND
VCC	5V
SCL/SCK	gpio6
SDA/MOSI	gpio7
RES/RST	gpio14
DC	gpio13
CS	GND
LED	gpio12

M5Stamp C3U

ST7735R Pin	M5Stamp C3U Pin
GND	GND
3V3	3V3
SCL/SCK	gpio8
SDA/MOSI/SI	gpio10
RES/RST	gpio3
DC	gpio4
TCS/CS	GND
LED	Not connected

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st7735-lcd-examples's Issues

Does not compile on Pico

I get below errors when trying to compile:

error[E0599]: no method named `integer` found for struct `fugit::rate::Rate` in the current scope
  --> examples/draw_ferris.rs:72:87
   |
72 |     let mut delay = cortex_m::delay::Delay::new(core.SYST, clocks.system_clock.freq().integer());
   |                                                                                       ^^^^^^^ method not found in `fugit::rate::Rate<u32, 1, 1>`

error[E0277]: the trait bound `fugit::rate::Rate<u32, 1, 1>: From<Hertz>` is not satisfied
   --> examples/draw_ferris.rs:99:9
    |
96  |     let spi = spi.init(
    |                   ---- required by a bound introduced by this call
...
99  |         16_000_000u32.Hz(),
    |         ^^^^^^^^^^^^^^^^^^ the trait `From<Hertz>` is not implemented for `fugit::rate::Rate<u32, 1, 1>`

Proposed modification of argument values for esp32c3

I have used the esp32c3 example.
I think the color and range of the display is incorrect.
Please check the following suggested corrections.

--- a/esp32c3-examples/examples/draw_ferris.rs
+++ b/esp32c3-examples/examples/draw_ferris.rs
@@ -35,10 +35,10 @@ fn main() -> Result<()> {
     let rst = PinDriver::output(peripherals.pins.gpio3)? ;
     let dc = PinDriver::output(peripherals.pins.gpio4)? ;

- let rgb = false;
+ let rgb = true;
     let inverted = false;
     let width = 128;
- let height = 128;
+ let height = 160;

I am sorry, but you have written a note in the readme regarding this matter.
However, I still think it would be better to modify it according to the actual situation.
I have confirmed that it works as follows.
https://twitter.com/Yu2Ta7Ka/status/1687927576898224128

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