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Add native Ethernet support for RAK4631 repeater, room server, and companion
Add W5100S Ethernet adapter support for RAK4631-based firmware, enabling TCP CLI access on port 23 as an alternative to BLE/Serial connections. - New SerialEthernetInterface for nRF52 with DHCP, reconnection handling, and shared WB_IO2 power pin management with GPS module - Ethernet build targets for repeater, room server, and companion firmware - Prevent GPS from toggling WB_IO2 when Ethernet module is active - CI build check for all three ETH firmware targets Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Ryan Gregg
parent
a10476efd7
commit
70b51bd096
9 changed files with 842 additions and 11 deletions
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@ -8,6 +8,123 @@
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static UITask ui_task(display);
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#endif
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#ifdef ETH_ENABLED
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#include <SPI.h>
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#include <RAK13800_W5100S.h>
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#define PIN_SPI1_MISO (29)
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#define PIN_SPI1_MOSI (30)
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#define PIN_SPI1_SCK (3)
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SPIClass ETH_SPI_PORT(NRF_SPIM1, PIN_SPI1_MISO, PIN_SPI1_SCK, PIN_SPI1_MOSI);
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#define PIN_ETH_POWER_EN WB_IO2
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#define PIN_ETHERNET_RESET 21
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#define PIN_ETHERNET_SS 26
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#ifndef ETH_TCP_PORT
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#define ETH_TCP_PORT 23 // telnet port for CLI access
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#endif
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#define ETH_RETRY_INTERVAL_MS 30000
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static EthernetServer eth_server(ETH_TCP_PORT);
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static EthernetClient eth_client;
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static volatile bool eth_running = false;
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static void generateDeviceMac(uint8_t mac[6]) {
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uint32_t device_id = NRF_FICR->DEVICEID[0];
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mac[0] = 0x02; mac[1] = 0x92; mac[2] = 0x1F;
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mac[3] = (device_id >> 16) & 0xFF;
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mac[4] = (device_id >> 8) & 0xFF;
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mac[5] = device_id & 0xFF;
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}
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// FreeRTOS task: handles hw init, DHCP, and retries in the background
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static void eth_task(void* param) {
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(void)param;
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// Hardware init
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Serial.println("ETH: Initializing hardware");
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pinMode(PIN_ETH_POWER_EN, OUTPUT);
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digitalWrite(PIN_ETH_POWER_EN, HIGH);
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vTaskDelay(pdMS_TO_TICKS(100));
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pinMode(PIN_ETHERNET_RESET, OUTPUT);
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digitalWrite(PIN_ETHERNET_RESET, LOW);
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vTaskDelay(pdMS_TO_TICKS(100));
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digitalWrite(PIN_ETHERNET_RESET, HIGH);
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ETH_SPI_PORT.begin();
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Ethernet.init(ETH_SPI_PORT, PIN_ETHERNET_SS);
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uint8_t mac[6];
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generateDeviceMac(mac);
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Serial.printf("ETH: MAC: %02X:%02X:%02X:%02X:%02X:%02X\n",
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mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
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// Retry loop: keep trying until we get an IP
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while (!eth_running) {
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if (Ethernet.hardwareStatus() == EthernetNoHardware) {
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Serial.println("ETH: Hardware not found, giving up");
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vTaskDelete(NULL);
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return;
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}
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if (Ethernet.linkStatus() == LinkOFF) {
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vTaskDelay(pdMS_TO_TICKS(ETH_RETRY_INTERVAL_MS));
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continue;
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}
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Serial.println("ETH: Link detected, attempting DHCP...");
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if (Ethernet.begin(mac, 10000, 2000) == 0) {
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Serial.println("ETH: DHCP failed, will retry");
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vTaskDelay(pdMS_TO_TICKS(ETH_RETRY_INTERVAL_MS));
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continue;
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}
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IPAddress ip = Ethernet.localIP();
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Serial.printf("ETH: IP: %u.%u.%u.%u\n", ip[0], ip[1], ip[2], ip[3]);
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Serial.printf("ETH: Listening on TCP port %d\n", ETH_TCP_PORT);
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eth_server.begin();
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eth_running = true;
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}
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// DHCP succeeded, task is done
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vTaskDelete(NULL);
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}
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static void eth_start_task() {
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xTaskCreate(eth_task, "eth_init", 1024, NULL, 1, NULL);
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}
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// Format ethernet status into reply buffer. Returns true if command was handled.
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static bool eth_handle_command(const char* command, char* reply) {
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if (strcmp(command, "eth") != 0) return false;
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if (!eth_running) {
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strcpy(reply, "ETH: not connected");
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} else {
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IPAddress ip = Ethernet.localIP();
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sprintf(reply, "ETH: %u.%u.%u.%u:%d", ip[0], ip[1], ip[2], ip[3], ETH_TCP_PORT);
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}
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return true;
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}
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// Check for new TCP client connections
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static void eth_check_client() {
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if (eth_client && eth_client.connected()) return;
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auto newClient = eth_server.available();
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if (newClient) {
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if (eth_client) eth_client.stop();
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eth_client = newClient;
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IPAddress ip = eth_client.remoteIP();
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Serial.printf("ETH: Client connected from %u.%u.%u.%u\n", ip[0], ip[1], ip[2], ip[3]);
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eth_client.println("MeshCore Repeater CLI");
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eth_client.print("> ");
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}
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}
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#endif
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StdRNG fast_rng;
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SimpleMeshTables tables;
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@ -18,6 +135,9 @@ void halt() {
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}
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static char command[160];
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#ifdef ETH_ENABLED
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static char eth_command[160];
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#endif
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// For power saving
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unsigned long lastActive = 0; // mark last active time
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@ -85,6 +205,9 @@ void setup() {
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mesh::Utils::printHex(Serial, the_mesh.self_id.pub_key, PUB_KEY_SIZE); Serial.println();
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command[0] = 0;
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#ifdef ETH_ENABLED
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eth_command[0] = 0;
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#endif
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sensors.begin();
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@ -94,6 +217,10 @@ void setup() {
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ui_task.begin(the_mesh.getNodePrefs(), FIRMWARE_BUILD_DATE, FIRMWARE_VERSION);
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#endif
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#ifdef ETH_ENABLED
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eth_start_task();
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#endif
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// send out initial zero hop Advertisement to the mesh
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#if ENABLE_ADVERT_ON_BOOT == 1
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the_mesh.sendSelfAdvertisement(16000, false);
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@ -101,6 +228,7 @@ void setup() {
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}
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void loop() {
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// Handle Serial CLI
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int len = strlen(command);
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while (Serial.available() && len < sizeof(command)-1) {
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char c = Serial.read();
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@ -119,6 +247,10 @@ void loop() {
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Serial.print('\n');
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command[len - 1] = 0; // replace newline with C string null terminator
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char reply[160];
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reply[0] = 0;
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#ifdef ETH_ENABLED
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if (!eth_handle_command(command, reply))
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#endif
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the_mesh.handleCommand(0, command, reply); // NOTE: there is no sender_timestamp via serial!
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if (reply[0]) {
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Serial.print(" -> "); Serial.println(reply);
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@ -127,6 +259,41 @@ void loop() {
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command[0] = 0; // reset command buffer
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}
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#ifdef ETH_ENABLED
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if (eth_running) {
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eth_check_client();
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Ethernet.maintain();
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}
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if (eth_running && eth_client && eth_client.connected()) {
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int elen = strlen(eth_command);
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while (eth_client.available() && elen < (int)sizeof(eth_command)-1) {
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char c = eth_client.read();
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if (c == '\n') continue; // ignore LF
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eth_command[elen++] = c;
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eth_command[elen] = 0;
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if (c == '\r') break;
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}
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if (elen == sizeof(eth_command)-1) {
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eth_command[sizeof(eth_command)-1] = '\r';
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}
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if (elen > 0 && eth_command[elen - 1] == '\r') {
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eth_command[elen - 1] = 0;
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eth_client.println();
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char reply[160];
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reply[0] = 0;
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if (!eth_handle_command(eth_command, reply))
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the_mesh.handleCommand(0, eth_command, reply);
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if (reply[0]) {
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eth_client.print(" -> "); eth_client.println(reply);
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}
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eth_client.print("> ");
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eth_command[0] = 0;
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}
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}
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#endif
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the_mesh.loop();
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sensors.loop();
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#ifdef DISPLAY_CLASS
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