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Provide last read rfid-id via webinterface.

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This commit is contained in:
Simon Weidacher
2021-12-26 14:00:30 +01:00
parent 20412bbd9d
commit 7398e7d604
2 changed files with 18 additions and 10 deletions
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26
device/main/RFIDInterface.cpp
View File

@@ -3,15 +3,16 @@
#include <esp_log.h>
#include <esp_err.h>
#include <esp_http_server.h>
#include <stdio.h>
#include "WebInterface.hpp"
static const char* TAG = "rfid";
void tag_handler(uint8_t* sn) { // serial number is always 5 bytes long
ESP_LOGI(TAG, "Tag: %#x %#x %#x %#x %#x",
sn[0], sn[1], sn[2], sn[3], sn[4]
);
static char* lastTagId = (char*)malloc(26 * sizeof(char));
static char* getLastTagId() {
return lastTagId;
}
RFIDInterface::RFIDInterface() {
@@ -20,7 +21,15 @@ RFIDInterface::RFIDInterface() {
.mosi_io = 25,
.sck_io = 23,
.sda_io = 5,
.callback = &tag_handler
.callback = [](uint8_t* sn) { // serial number is always 5 bytes long
ESP_LOGI(TAG, "Tag: %#x %#x %#x %#x %#x",
sn[0], sn[1], sn[2], sn[3], sn[4]
);
sprintf(lastTagId, "%#x_%#x_%#x_%#x_%#x", sn[0], sn[1], sn[2], sn[3], sn[4]);
ESP_LOGI(TAG, "sprintf tag id: %s", lastTagId);
}
};
}
@@ -32,12 +41,11 @@ void RFIDInterface::registerWebResources(WebInterface* interface) {
httpd_uri_t config = {
.uri = "/rfid",
.method = HTTP_GET,
.handler = [](httpd_req_t *req) {
httpd_resp_send(req, "it's all fine!", HTTPD_RESP_USE_STRLEN);
.handler = [](httpd_req_t *req) {
httpd_resp_send(req, getLastTagId(), HTTPD_RESP_USE_STRLEN);
return ESP_OK;
}
};
interface->registerResource(&config);
}
}

2
device/main/RFIDInterface.hpp
View File

@@ -13,4 +13,4 @@ class RFIDInterface {
void registerWebResources(WebInterface* interface);
};
#endif
#endif