mirror of
https://github.com/cesanta/mongoose.git
synced 2024-12-12 07:29:04 +08:00
52 lines
1.5 KiB
C++
52 lines
1.5 KiB
C++
#include <SPI.h>
|
|
#include "net.h"
|
|
|
|
#define SS_PIN 17 // Slave select pin
|
|
struct mg_tcpip_spi spi = {
|
|
NULL, // SPI data
|
|
[](void *) { digitalWrite(SS_PIN, LOW); }, // Begin transaction
|
|
[](void *) { digitalWrite(SS_PIN, HIGH); }, // End transaction
|
|
[](void *, uint8_t c) { return SPI.transfer(c); }, // Execute transaction
|
|
};
|
|
|
|
void exec_command(const char *req, size_t req_len) {
|
|
char res[100];
|
|
if (req_len == 2 && strncmp(req, "on", req_len) == 0) {
|
|
digitalWrite(LED_BUILTIN, true);
|
|
snprintf(res, sizeof(res), "LED on");
|
|
} else if (req_len == 3 && strncmp(req, "off", req_len) == 0) {
|
|
digitalWrite(LED_BUILTIN, false);
|
|
snprintf(res, sizeof(res), "LED off");
|
|
} else {
|
|
snprintf(res, sizeof(res), "Unknown command: [%.*s]", (int) req_len, req);
|
|
}
|
|
Serial.println(res);
|
|
mqtt_publish(res);
|
|
}
|
|
|
|
static void process_input(char c) {
|
|
static char buf[100];
|
|
static size_t len = 0;
|
|
char response[100];
|
|
if (c != '\n' && c != '\0') buf[len++] = c; // Append to the buffer
|
|
if (len >= sizeof(buf)) len = 0; // On overflow, reset
|
|
if (c == '\n' && len > 0) {
|
|
exec_command(buf, len);
|
|
len = 0;
|
|
}
|
|
}
|
|
|
|
void setup() {
|
|
Serial.begin(115200);
|
|
SPI.begin();
|
|
pinMode(SS_PIN, OUTPUT);
|
|
pinMode(LED_BUILTIN, OUTPUT);
|
|
mg_log_set_fn([](char ch, void *) { Serial.print(ch); }, NULL);
|
|
net_init();
|
|
}
|
|
|
|
void loop() {
|
|
if (Serial.available()) process_input(Serial.read());
|
|
mg_mgr_poll(&mgr, 1);
|
|
}
|