mirror of
https://github.com/mytechnotalent/Embedded-Hacking.git
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65 lines
2.2 KiB
C
65 lines
2.2 KiB
C
// MIT License
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//
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// Copyright (c) 2026 Kevin Thomas
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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//
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// Author: Kevin Thomas
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// Email: kevin@mytechnotalent.com
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// GitHub: https://github.com/mytechnotalent
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// File: lora.h
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// Desc: Declares UART1 interface for the REYAX RYLR998 LoRa transceiver.
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// Created: 2026
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#ifndef LORA_H
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#define LORA_H
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#include <stdbool.h>
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#include <stddef.h>
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#include "hardware/uart.h"
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#define LORA_UART uart1
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#define LORA_BAUD 9600
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#define LORA_TX_PIN 8
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#define LORA_RX_PIN 9
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/**
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* @brief Initialize UART1 and configure the RYLR998 radio parameters.
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* @param void No parameters.
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* @return void No return value.
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*/
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void init_lora(void);
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/**
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* @brief Transmit a message over the LoRa link to the base station.
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* @param msg Null-terminated message string to transmit.
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* @return void No return value.
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*/
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void lora_send(const char *msg);
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/**
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* @brief Poll the UART receive buffer for a complete LoRa packet.
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* @param payload_out Buffer receiving the extracted payload string.
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* @param max_len Capacity of payload_out in bytes.
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* @return true when a payload was extracted, false otherwise.
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*/
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bool lora_poll_packet(char *payload_out, size_t max_len);
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#endif // LORA_H
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