92a5182dc3
Complete end-to-end WiFi CSI capture pipeline verified on real hardware: - ESP32-S3 firmware: WiFi STA + promiscuous mode CSI collection, ADR-018 binary serialization, UDP streaming at ~20 Hz - Rust aggregator CLI binary (clap): receives UDP frames, parses with Esp32CsiParser, prints per-frame summary (node, seq, rssi, amp) - UDP aggregator module with per-node sequence tracking and drop detection - CsiFrame bridge to detection pipeline (amplitude/phase/SNR conversion) - Python ESP32 binary parser with UDP reader - Presence detection confirmed: motion score 10/10 from live CSI variance Hardware verified: ESP32-S3-DevKitC-1 (CP2102, MAC 3C:0F:02:EC:C2:28), Docker ESP-IDF v5.2 build, esptool 5.1.0 flash, 20 Rust + 6 Python tests pass. Co-Authored-By: claude-flow <ruv@ruv.net>
68 lines
1.6 KiB
C
68 lines
1.6 KiB
C
/**
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* @file stream_sender.c
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* @brief UDP stream sender for CSI frames.
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*
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* Opens a UDP socket and sends serialized ADR-018 frames to the aggregator.
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*/
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#include "stream_sender.h"
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#include <string.h>
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#include "esp_log.h"
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#include "lwip/sockets.h"
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#include "lwip/netdb.h"
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#include "sdkconfig.h"
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static const char *TAG = "stream_sender";
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static int s_sock = -1;
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static struct sockaddr_in s_dest_addr;
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int stream_sender_init(void)
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{
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s_sock = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
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if (s_sock < 0) {
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ESP_LOGE(TAG, "Failed to create socket: errno %d", errno);
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return -1;
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}
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memset(&s_dest_addr, 0, sizeof(s_dest_addr));
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s_dest_addr.sin_family = AF_INET;
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s_dest_addr.sin_port = htons(CONFIG_CSI_TARGET_PORT);
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if (inet_pton(AF_INET, CONFIG_CSI_TARGET_IP, &s_dest_addr.sin_addr) <= 0) {
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ESP_LOGE(TAG, "Invalid target IP: %s", CONFIG_CSI_TARGET_IP);
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close(s_sock);
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s_sock = -1;
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return -1;
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}
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ESP_LOGI(TAG, "UDP sender initialized: %s:%d", CONFIG_CSI_TARGET_IP, CONFIG_CSI_TARGET_PORT);
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return 0;
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}
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int stream_sender_send(const uint8_t *data, size_t len)
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{
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if (s_sock < 0) {
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return -1;
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}
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int sent = sendto(s_sock, data, len, 0,
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(struct sockaddr *)&s_dest_addr, sizeof(s_dest_addr));
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if (sent < 0) {
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ESP_LOGW(TAG, "sendto failed: errno %d", errno);
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return -1;
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}
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return sent;
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}
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void stream_sender_deinit(void)
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{
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if (s_sock >= 0) {
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close(s_sock);
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s_sock = -1;
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ESP_LOGI(TAG, "UDP sender closed");
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}
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}
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