mirror of
https://github.com/mytechnotalent/Embedded-Hacking.git
synced 2026-07-09 14:08:11 +02:00
Kevin Thomas
e54c756423
Rust (all 15 projects):
- Refactored overlength functions: format_counter, format_u8, format_f32_1,
format_u32_minimal, gpio_drive, read_sensor, poll_sensor, format_round_trip,
format_u32, prepare_write_buf, write_min_digits, write_temp, UartDriver::init,
init_spi, angle_to_pulse_us, compute_servo_level
- Added 200+ docstrings to test functions, mock structs, impl blocks
- Fixed pub static comments (//) to doc comments (///) in all main.rs files
- Fixed helper function ordering (helpers above callers)
- Fixed Fn(u32) -> FnMut(u32) bound in button poll_button
- Moved OneShot trait import from main.rs to board.rs in adc project
- Added unsafe {} blocks in flash unsafe fn bodies (Rust 2024 edition)
- Removed unused hal::Clock imports from pwm/servo main.rs
- All 15 projects build with zero errors and zero warnings
C Pico SDK (all 15 projects):
- Added docstrings to all public functions, macros, and static variables
- All 15 projects rebuilt with zero errors
Cleanup:
- Removed build/ and target/ directories from git tracking
- Added target/ to .gitignore
- Deleted temporary fix_rust_docs.py script
108 lines
2.8 KiB
C
108 lines
2.8 KiB
C
/**
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******************************************************************************
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* @file main.c
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* @author Kevin Thomas
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* @brief SG90 servo motor sweep demonstration.
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*
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* Demonstrates servo control using the servo driver. The servo
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* sweeps from 0 to 180 degrees and back in 10-degree steps,
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* reporting each angle over UART.
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*
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* Wiring:
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* GPIO0 -> UART TX (USB-to-UART adapter RX)
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* GPIO1 -> UART RX (USB-to-UART adapter TX)
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* GPIO6 -> Servo signal (orange/yellow)
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* 5V -> Servo power (red)
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* GND -> Servo ground (brown/black)
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*
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******************************************************************************
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* @attention
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*
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* Copyright (c) 2026 Kevin Thomas.
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* All rights reserved.
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*
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* This software is licensed under terms that can be found in the LICENSE file
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* in the root directory of this software component.
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* If no LICENSE file comes with this software, it is provided AS-IS.
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*
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******************************************************************************
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*/
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#include "rp2350_servo.h"
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#include "rp2350_uart.h"
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#include "rp2350_delay.h"
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#define STEP_DEGREES 10
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#define STEP_DELAY_MS 150
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/**
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* @brief Convert a uint8_t to a decimal string.
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* @param value number to convert (0-255)
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* @param buf output buffer (at least 4 bytes)
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* @retval None
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*/
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static void _uint8_to_str(uint8_t value, char *buf)
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{
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uint8_t idx = 0;
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if (value >= 100)
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buf[idx++] = (char)('0' + value / 100);
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if (value >= 10)
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buf[idx++] = (char)('0' + (value / 10) % 10);
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buf[idx++] = (char)('0' + value % 10);
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buf[idx] = '\0';
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}
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/**
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* @brief Print an angle value as a decimal string over UART.
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* @param angle angle in degrees (0-180)
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* @retval None
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*/
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static void _print_angle(uint8_t angle)
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{
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char buf[4];
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_uint8_to_str(angle, buf);
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uart_puts("Angle: ");
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uart_puts(buf);
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uart_puts(" deg\r\n");
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}
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/**
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* @brief Sweep servo angle upward from 0 to 180 degrees.
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* @retval None
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*/
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static void _sweep_up(void)
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{
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for (uint8_t angle = 0; angle <= 180; angle += STEP_DEGREES) {
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servo_set_angle(angle);
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_print_angle(angle);
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delay_ms(STEP_DELAY_MS);
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}
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}
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/**
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* @brief Sweep servo angle downward from 180 to 0 degrees.
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* @retval None
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*/
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static void _sweep_down(void)
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{
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for (int16_t angle = 180; angle >= 0; angle -= STEP_DEGREES) {
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servo_set_angle((uint8_t)angle);
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_print_angle((uint8_t)angle);
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delay_ms(STEP_DELAY_MS);
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}
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}
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/**
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* @brief Application entry point for the servo sweep demo.
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* @retval int does not return
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*/
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int main(void)
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{
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uart_puts("Servo driver initialized on GPIO6\r\n");
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uart_puts("Sweeping 0 -> 180 -> 0 degrees\r\n");
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while (1) {
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_sweep_up();
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_sweep_down();
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}
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}
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