{"id":2168,"date":"2020-01-03T16:55:19","date_gmt":"2020-01-03T21:55:19","guid":{"rendered":"http:\/\/blog.espol.edu.ec\/edelros\/?p=2168"},"modified":"2025-04-07T11:38:29","modified_gmt":"2025-04-07T16:38:29","slug":"lora-multipunto-gateway-ino-basico-con-lora-esp32","status":"publish","type":"post","link":"https:\/\/blog.espol.edu.ec\/girni\/lora-multipunto-gateway-ino-basico-con-lora-esp32\/","title":{"rendered":"2.3 LoRa Multipunto - Gateway.ino b\u00e1sico con LoRa-ESP32"},"content":{"rendered":"

El prototipo para un gateway simple se inicia con la funci\u00f3n de recepci\u00f3n de mensajes que hay que procesar para enviarlos aun servidor MQTT. A partir de donde se gestionan los datos de los sensores.<\/p>\n

\"Lora<\/a><\/p>\n

Para el prototipo se usa placa de desarrollo que contiene: un\u00a0 m\u00f3dulo LoRa y un SoC ESP32. Si se reutiliza algunos componentes de algoritmos usados para los dispositivos con WiFi, la versi\u00f3n inicial se conecta un router IP via WiFi de donde se envia el mensaje MQTT.<\/p>\n

El mensaje MQTT require la descripci\u00f3n de un t\u00f3pico, por lo que en la conformaci\u00f3n del t\u00f3pico se usa la direcci\u00f3n de env\u00edo.<\/p>\n

Los valores usados en el mensaje MQTT, son el estado del sensor u otro valor que se requiera. Para facilitar el seguimiento inicial de datos, se publica el identificador de mensaje, que es un contador ascendente que permite observar la secuencia del n\u00famero de mensaje.<\/p>\n

Gateway Multipunto - Recepci\u00f3n Lora y env\u00edo MQTT<\/h2>\n

Para el ejercicio se habilitan dos dispositivos \"D1\" y \"D2\", comprobando los mensajes recibidos de varias formas:<\/p>\n

- mensajes por puerto serial
\n- mensajes MQTT en servidor<\/p>\n

\"LoRa<\/a><\/h2>\n

Instrucciones en Arduino<\/h2>\n

Los bloques se crean a partir del ejemplo de LoRa Mutipunto para dispositivos, aprovechando que el m\u00f3dulo Heltec LoRa-ESP32 tiene incorporado WiFi. Aunque no se encuentran todos los canales disponibles al mismo tiempo para recibir todas las se\u00f1ales, se aprovecha que si el\u00a0 canal est\u00e1 libre se puede realizar la transmisi\u00f3n del estado del sensor desde LoRa hacia WiFi para llegar hasta el broker MQTT.<\/p>\n

El ejercicio es una prueba de concepto, pues un gateway completo debe estar atento a todos los canales de transmisi\u00f3n y tener la capacidad de atenci\u00f3n a cada uno de ellos simult\u00e1neamente.<\/p>\n

Bloque principal<\/h3>\n

En el bloque principal se adjuntan los par\u00e1metros de conexi\u00f3n por WiFi, as\u00ed como las instrucciones de inicializaci\u00f3n. Desde luego ser\u00e1 necesario a\u00f1adir los procedimientos de WiFi y MQTT.<\/p>\n

\"LoRa<\/a><\/p>\n

\/* Dispositivo Gateway: LoRa\/WiFi\/MQTT\/Home-Assistant<\/span>\r\n * <\/span>http:\/\/blog.espol.edu.ec\/girni\/lora-multipunto-esquema\/<\/span><\/u>\r\n * Referencia: Aaron.Lee <\/span>www.heltec.cn<\/span><\/u>, <\/span>\r\n * <\/span>https:\/\/github.com\/Heltec-Aaron-Lee\/WiFi_Kit_series<\/span><\/u>\r\n*\/<\/span>\r\n#include<\/span> \"heltec.h\"<\/span>\r\n#include<\/span> <<\/span>WiFi<\/span><\/b>.<\/span>h<\/span>><\/span>\r\n#include<\/span> <<\/span>PubSubClient<\/span><\/b>.<\/span>h<\/span>><\/span>\r\n\r\n\/\/ LoRa Banda ISM en Regi\u00f3n 915Mhz<\/span>\r\n#define<\/span> BAND<\/span> 915E6<\/span> \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/433E6,868E6,915E6<\/span>\r\nbyte<\/span> spread_factor<\/span> =<\/span> 8<\/span>;<\/span> \u00a0\/\/ rango 6-12,default 7<\/span>\r\n\r\n\/\/ Mensaje LoRa a enviar por direcciones<\/span>\r\nbyte<\/span> dir_local<\/span> \u00a0\u00a0=<\/span> 0xC1<\/span>;<\/span> \/\/ Dispositivo 1<\/span>\r\nbyte<\/span> dir_destino<\/span> =<\/span> 0xD1<\/span>;<\/span> \/\/ Dispositivo 2<\/span>\r\nbyte<\/span> id_msjLoRa<\/span> \u00a0=<\/span> 0<\/span>;<\/span> \u00a0\u00a0\u00a0\/\/ cuenta mensaje<\/span>\r\nString<\/span> paqueteEnv<\/span> =<\/span> \"\"<\/span>;<\/span> \u00a0\/\/ mensaje<\/span>\r\n\r\n\/\/ Mensaje LoRa recibido<\/span>\r\nbyte<\/span> dir_envio<\/span> \u00a0=<\/span> 0xC1<\/span>;<\/span> \/\/ receptor<\/span>\r\nbyte<\/span> dir_remite<\/span> =<\/span> 0xD1<\/span>;<\/span> \/\/ emisor<\/span>\r\nString<\/span> paqueteRcb<\/span> =<\/span> \"OFF\"<\/span>;<\/span> \/\/ mensaje LoRa<\/span>\r\nbyte<\/span> \u00a0\u00a0paqRcb_ID<\/span> \u00a0=<\/span> 0<\/span>;<\/span>\r\nbyte<\/span> \u00a0\u00a0paqRcb_Estado<\/span> =<\/span> 0<\/span>;<\/span>\r\n \u00a0\/\/ 0:vacio, 1: nuevo, \u00a0\u00a02:incompleto<\/span>\r\n \u00a0\/\/ 3:otro destinatario, 4:Broadcast<\/span>\r\n\r\n\/\/ LED interno, ESP01-pin=1, ESP07-pin=2<\/span>\r\nint<\/span> LED_pin<\/span> =<\/span> LED<\/span>;<\/span> \/\/LED interno Heltec<\/span>\r\n\r\n\/\/ Mensajes por Puerto Serial<\/span>\r\nboolean<\/span> serial_msj<\/span> =<\/span> true<\/span>;<\/span>\r\n\r\n\/\/ tiempo entre lecturas<\/span>\r\nlong<\/span> tiempo_antes<\/span> \u00a0\u00a0\u00a0\u00a0=<\/span> 0<\/span>;<\/span>\r\nint<\/span> \u00a0tiempo_intervalo<\/span> =<\/span> 6000<\/span>;<\/span>\r\nlong<\/span> tiempo_espera<\/span> =<\/span> tiempo_intervalo<\/span> +<\/span> random<\/span>(<\/span>3000<\/span>)<\/span>;<\/span>\r\n\r\n\/\/ WIFI: conexi\u00f3n a Router<\/span>\r\nchar<\/span>*<\/span> ssid<\/span> \u00a0\u00a0\u00a0\u00a0=<\/span> \"miRouter\"<\/span>;<\/span>\r\nchar<\/span>*<\/span> password<\/span> =<\/span> \"miRouterclave\"<\/span>;<\/span>\r\n\r\n\/\/ MQTT: Servidor<\/span>\r\nchar<\/span>*<\/span> MQTT_IP<\/span> =<\/span> \"192.168.10.50\"<\/span>;<\/span>\r\nuint16_t<\/span> MQTT_puerto<\/span> \u00a0=<\/span> 1883<\/span>;<\/span>\r\nchar<\/span>*<\/span> MQTT_usuario<\/span> \u00a0\u00a0\u00a0=<\/span> \"usuarioprueba\"<\/span>;<\/span>\r\nchar<\/span>*<\/span> MQTT_contrasena<\/span> =<\/span> \"usuarioclave\"<\/span>;<\/span>\r\n\r\n\/\/ MQTT: Dispositivo Sensor<\/span>\r\nchar<\/span>*<\/span> MQTT_ID<\/span> =<\/span> \"LoraGatewayC1\"<\/span>;<\/span>\r\nString<\/span> topico_base<\/span> \u00a0=<\/span> \"invernadero\/lora\"<\/span>;<\/span>\r\nString<\/span> topico_valor<\/span> =<\/span> \"\/valor\"<\/span>;<\/span>\r\nchar<\/span> MQTT_TOPIC<\/span>[<\/span>50<\/span>]<\/span> =<\/span> \"\"<\/span>;<\/span> \/\/ construido en algoritmo<\/span>\r\nchar<\/span> MQTT_SensorEstado<\/span>[<\/span>10<\/span>]<\/span> =<\/span> \"OFF\"<\/span>;<\/span>\r\nboolean<\/span> mqtt_desconectado<\/span> =<\/span> true<\/span>;<\/span>\r\n\r\n\/\/ MQTT: Dispositivo Actuador<\/span>\r\nString<\/span> topico_accion<\/span> =<\/span> \"\/cambia\"<\/span>;<\/span>\r\nchar<\/span> MQTT_COMMAND<\/span>[<\/span>50<\/span>]<\/span> =<\/span> \"\"<\/span>;<\/span>\r\nchar<\/span> MQTT_ActuadorEstado<\/span>[<\/span>10<\/span>]<\/span> =<\/span> \"OFF\"<\/span>;<\/span>\r\nboolean<\/span> actuador_estado<\/span> \u00a0=<\/span> false<\/span>;<\/span>\r\nboolean<\/span> actuador_bandera<\/span> =<\/span> false<\/span>;<\/span>\r\nchar<\/span>*<\/span> sensor_ON<\/span> \u00a0=<\/span> \"ON\"<\/span>;<\/span>\r\nchar<\/span>*<\/span> sensor_OFF<\/span> =<\/span> \"OFF\"<\/span>;<\/span>\r\n\r\n\/\/ Clientes WiFi y MQTT<\/span>\r\nWiFiClient<\/span><\/b> \u00a0\u00a0wificlient<\/span>;<\/span>\r\nPubSubClient<\/span><\/b> mqttclient<\/span>(<\/span>wificlient<\/span>)<\/span>;<\/span>\r\n\r\nvoid<\/span> setup<\/span>(<\/span>)<\/span>{<\/span>\r\n \u00a0Heltec<\/span>.<\/span>begin<\/span>(<\/span>false<\/span> \/*DisplayEnable Enable*\/<\/span>,<\/span>\r\n \u00a0\u00a0\u00a0true<\/span> \/*Heltec.LoRa Disable*\/<\/span>,<\/span>\r\n \u00a0\u00a0\u00a0serial_msj<\/span> \/*Serial Enable*\/<\/span>,<\/span>\r\n \u00a0\u00a0\u00a0true<\/span> \/*PABOOST Enable*\/<\/span>,<\/span>\r\n \u00a0\u00a0\u00a0BAND<\/span> \/*long BAND*\/<\/span>)<\/span>;<\/span>\r\n \u00a0LoRa<\/span><\/b>.<\/span>setSpreadingFactor<\/span>(<\/span>spread_factor<\/span>)<\/span>;<\/span>\r\n \u00a0\r\n \u00a0\/\/LoRa.onReceive(cbk);<\/span>\r\n \u00a0LoRa<\/span><\/b>.<\/span>receive<\/span>(<\/span>)<\/span>;<\/span>\r\n \u00a0\r\n \u00a0inicia_wifi<\/span>(<\/span>)<\/span>;<\/span> \/\/ conexi\u00f3n WIFI y MQTT<\/span>\r\n \u00a0if<\/span> (<\/span>WiFi<\/span><\/b>.<\/span>status<\/span>(<\/span>)<\/span> ==<\/span> WL_CONNECTED<\/span>)<\/span>{<\/span>\r\n \u00a0\u00a0\u00a0inicia_mqtt<\/span>(<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0}<\/span>\r\n}<\/span>\r\n\r\nvoid<\/span> loop<\/span>(<\/span>)<\/span>{<\/span>\r\n\r\n \u00a0\/\/ LoRa Revisa mensajes de dispositivos<\/span>\r\n \u00a0int<\/span> msjRcbLoRa<\/span> =<\/span> LoRa<\/span><\/b>.<\/span>parsePacket<\/span>(<\/span>)<\/span>;<\/span>\r\n \u00a0if<\/span> (<\/span>msjRcbLoRa<\/span> !=<\/span>0<\/span>)<\/span>{<\/span>\r\n \u00a0\u00a0\u00a0recibe_lora<\/span>(<\/span>msjRcbLoRa<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0int<\/span> rssi_lora<\/span> =<\/span> LoRa<\/span><\/b>.<\/span>packetRssi<\/span>(<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0int<\/span> snr_lora<\/span> \u00a0=<\/span> LoRa<\/span><\/b>.<\/span>packetSnr<\/span>(<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\r\n \u00a0\u00a0\u00a0if<\/span> (<\/span>serial_msj<\/span>==<\/span>true<\/span>)<\/span>{<\/span>\r\n \u00a0\u00a0\u00a0\u00a0\u00a0if<\/span> (<\/span>paqRcb_Estado<\/span> ==<\/span> 1<\/span>)<\/span>{<\/span>\r\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Serial<\/span><\/b>.<\/span>print<\/span>(<\/span>\"Recibido: \"<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Serial<\/span><\/b>.<\/span>print<\/span>(<\/span>String<\/span>(<\/span>dir_remite<\/span>,<\/span>HEX<\/span>)<\/span>)<\/span>;<\/span>Serial<\/span><\/b>.<\/span>print<\/span>(<\/span>\",\"<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Serial<\/span><\/b>.<\/span>print<\/span>(<\/span>String<\/span>(<\/span>dir_envio<\/span>,<\/span>HEX<\/span>)<\/span>)<\/span>;<\/span> Serial<\/span><\/b>.<\/span>print<\/span>(<\/span>\",\"<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Serial<\/span><\/b>.<\/span>print<\/span>(<\/span>paqRcb_ID<\/span>)<\/span>;<\/span> \u00a0Serial<\/span><\/b>.<\/span>print<\/span>(<\/span>\",\"<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Serial<\/span><\/b>.<\/span>print<\/span>(<\/span>paqueteRcb<\/span>)<\/span>;<\/span> Serial<\/span><\/b>.<\/span>print<\/span>(<\/span>\",\"<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Serial<\/span><\/b>.<\/span>print<\/span>(<\/span>rssi_lora<\/span>)<\/span>;<\/span> \u00a0Serial<\/span><\/b>.<\/span>print<\/span>(<\/span>\",\"<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Serial<\/span><\/b>.<\/span>print<\/span>(<\/span>snr_lora<\/span>)<\/span>;<\/span> \u00a0\u00a0Serial<\/span><\/b>.<\/span>print<\/span>(<\/span>\",\"<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Serial<\/span><\/b>.<\/span>println<\/span>(<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0\u00a0\u00a0}<\/span>else<\/span>{<\/span>\r\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Serial<\/span><\/b>.<\/span>print<\/span>(<\/span>\"Paquete recibido Estado: \"<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Serial<\/span><\/b>.<\/span>println<\/span>(<\/span>paqRcb_Estado<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0\u00a0\u00a0}<\/span>\r\n \u00a0\u00a0\u00a0}<\/span>\r\n \u00a0\u00a0\u00a0\r\n \u00a0\u00a0\u00a0\/\/ LED parpadea. Rebibido LoRa <\/span>\r\n \u00a0\u00a0\u00a0digitalWrite<\/span>(<\/span>LED<\/span>,<\/span> HIGH<\/span>)<\/span>;<\/span> delay<\/span>(<\/span>50<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0digitalWrite<\/span>(<\/span>LED<\/span>,<\/span> LOW<\/span> )<\/span>;<\/span> delay<\/span>(<\/span>50<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0digitalWrite<\/span>(<\/span>LED<\/span>,<\/span> HIGH<\/span>)<\/span>;<\/span> delay<\/span>(<\/span>50<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0digitalWrite<\/span>(<\/span>LED<\/span>,<\/span> LOW<\/span> )<\/span>;<\/span>\r\n \u00a0}<\/span>\r\n\r\n \u00a0\r\n \u00a0\/\/ MQTT publica estado recibido desde LoRa<\/span>\r\n \u00a0if<\/span> (<\/span>msjRcbLoRa<\/span> !=<\/span>0<\/span> &&<\/span> paqRcb_Estado<\/span> ==<\/span> 1<\/span>)<\/span>{<\/span>\r\n \u00a0\u00a0\u00a0\r\n \u00a0\u00a0\u00a0if<\/span> (<\/span>mqttclient<\/span>.<\/span>connected<\/span>(<\/span>)<\/span>==<\/span>true<\/span>)<\/span>{<\/span>\r\n \u00a0\u00a0\u00a0\u00a0\u00a0publica_mqtt<\/span>(<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0}<\/span>\r\n \u00a0}<\/span>\r\n\r\n \u00a0\/\/ LoRa Reenvia a dispositivo<\/span>\r\n \u00a0if<\/span> (<\/span>actuador_bandera<\/span> ==<\/span> true<\/span>)<\/span>{<\/span>\r\n \u00a0\u00a0\u00a0id_msjLoRa<\/span> =<\/span> id_msjLoRa<\/span> +<\/span>1<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0envia_lora<\/span>(<\/span>dir_destino<\/span>,<\/span> dir_local<\/span>,<\/span> \r\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0id_msjLoRa<\/span>,<\/span> paqueteEnv<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0actuador_bandera<\/span> =<\/span> false<\/span>;<\/span>\r\n \u00a0}<\/span>\r\n\r\n \u00a0\/\/ Revisa estado WiFi y MQTT<\/span>\r\n \u00a0if<\/span> (<\/span>WiFi<\/span><\/b>.<\/span>status<\/span>(<\/span>)<\/span> !=<\/span> WL_CONNECTED<\/span>)<\/span>{<\/span>\r\n \u00a0\u00a0\u00a0inicia_wifi<\/span>(<\/span>)<\/span>;<\/span>\r\n \u00a0}<\/span>else<\/span>{<\/span>\r\n \u00a0\u00a0\u00a0if<\/span> (<\/span>mqttclient<\/span>.<\/span>connected<\/span> (<\/span>)<\/span> ==<\/span> false<\/span>)<\/span>{<\/span>\r\n \u00a0\u00a0\u00a0\u00a0\u00a0mqtt_desconectado<\/span> =<\/span> true<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0\u00a0\u00a0inicia_mqtt<\/span>(<\/span>)<\/span>;<\/span> \/\/ reintento<\/span>\r\n \u00a0\u00a0\u00a0}<\/span>\r\n \u00a0\u00a0\u00a0if<\/span> (<\/span>mqttclient<\/span>.<\/span>connected<\/span>(<\/span>)<\/span> ==<\/span> true<\/span>)<\/span>{<\/span>\r\n \u00a0\u00a0\u00a0\u00a0\u00a0if<\/span> (<\/span>mqtt_desconectado<\/span>==<\/span>true<\/span>)<\/span>{<\/span>\r\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0publica_mqtt<\/span>(<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0mqtt_desconectado<\/span>=<\/span>false<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0\u00a0\u00a0}<\/span>\r\n \u00a0\u00a0\u00a0\u00a0\u00a0mqttclient<\/span>.<\/span>loop<\/span>(<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0}<\/span>\r\n \u00a0}<\/span>\r\n \u00a0delay<\/span>(<\/span>100<\/span>)<\/span>;<\/span>\r\n}<\/span>\r\n<\/pre>\n
LoRa - env\u00edo de mensajes<\/h3>\n
\"LoRa<\/a><\/p>\n
void<\/span> envia_lora<\/span>(<\/span>byte<\/span> destino<\/span>,<\/span> byte<\/span> remite<\/span>,<\/span>\r\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0byte<\/span> paqueteID<\/span>,<\/span> String<\/span> paquete<\/span>)<\/span>{<\/span>\r\n\r\n \u00a0\/\/ espera radio para enviar un paquete<\/span>\r\n \u00a0while<\/span>(<\/span>LoRa<\/span><\/b>.<\/span>beginPacket<\/span>(<\/span>)<\/span> ==<\/span> 0<\/span>)<\/span>{<\/span>\r\n \u00a0\u00a0\u00a0if<\/span> (<\/span>serial_msj<\/span>==<\/span>true<\/span>)<\/span>{<\/span>\r\n \u00a0\u00a0\u00a0\u00a0\u00a0Serial<\/span><\/b>.<\/span>println<\/span>(<\/span>\"Esperando radio disponible...\"<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0}<\/span>\r\n \u00a0\u00a0\u00a0delay<\/span>(<\/span>100<\/span>)<\/span>;<\/span>\r\n \u00a0}<\/span>\r\n \u00a0\r\n \u00a0\/\/ envio del mensaje LoRa<\/span>\r\n \u00a0LoRa<\/span><\/b>.<\/span>beginPacket<\/span>(<\/span>)<\/span>;<\/span>\r\n \u00a0LoRa<\/span><\/b>.<\/span>write<\/span>(<\/span>destino<\/span>)<\/span>;<\/span>\r\n \u00a0LoRa<\/span><\/b>.<\/span>write<\/span>(<\/span>remite<\/span>)<\/span>;<\/span>\r\n \u00a0LoRa<\/span><\/b>.<\/span>write<\/span>(<\/span>paqueteID<\/span>)<\/span>;<\/span>\r\n \u00a0LoRa<\/span><\/b>.<\/span>write<\/span>(<\/span>paquete<\/span>.<\/span>length<\/span>(<\/span>)<\/span>)<\/span>;<\/span>\r\n \u00a0LoRa<\/span><\/b>.<\/span>print<\/span>(<\/span>paquete<\/span>)<\/span>;<\/span>\r\n \u00a0LoRa<\/span><\/b>.<\/span>endPacket<\/span>(<\/span>)<\/span>;<\/span>\r\n}<\/span>\r\n<\/pre>\n
LoRa - Recibe mensajes<\/h3>\n
\"LoRa<\/a><\/p>\n
void<\/span> recibe_lora<\/span>(<\/span>int<\/span> tamano<\/span>)<\/span>{<\/span>\r\n \u00a0if<\/span> (<\/span>tamano<\/span> ==<\/span> 0<\/span>)<\/span>{<\/span> \r\n \u00a0\u00a0\u00a0paqRcb_Estado<\/span> =<\/span> 0<\/span>;<\/span> \/\/vacio<\/span>\r\n \u00a0\u00a0\u00a0return<\/span>;<\/span>\r\n \u00a0}<\/span>\r\n \u00a0\u00a0\u00a0\r\n \u00a0\/\/ lectura de paquete<\/span>\r\n \u00a0paqueteRcb<\/span> =<\/span> \"\"<\/span>;<\/span>\r\n \u00a0dir_envio<\/span> \u00a0=<\/span> LoRa<\/span><\/b>.<\/span>read<\/span>(<\/span>)<\/span>;<\/span>\r\n \u00a0dir_remite<\/span> =<\/span> LoRa<\/span><\/b>.<\/span>read<\/span>(<\/span>)<\/span>;<\/span>\r\n \u00a0paqRcb_ID<\/span> \u00a0\u00a0=<\/span> LoRa<\/span><\/b>.<\/span>read<\/span>(<\/span>)<\/span>;<\/span>\r\n \u00a0\r\n \u00a0byte<\/span> paqrcbTamano<\/span> =<\/span> LoRa<\/span><\/b>.<\/span>read<\/span>(<\/span>)<\/span>;<\/span>\r\n \u00a0while<\/span>(<\/span>LoRa<\/span><\/b>.<\/span>available<\/span>(<\/span>)<\/span>)<\/span>{<\/span>\r\n \u00a0\u00a0\u00a0paqueteRcb<\/span> +=<\/span> (<\/span>char<\/span>)<\/span>LoRa<\/span><\/b>.<\/span>read<\/span>(<\/span>)<\/span>;<\/span>\r\n \u00a0}<\/span>\r\n \u00a0\r\n \u00a0if<\/span> (<\/span>paqrcbTamano<\/span> !=<\/span> paqueteRcb<\/span>.<\/span>length<\/span>(<\/span>)<\/span>)<\/span>{<\/span>\r\n \u00a0\u00a0\u00a0paqRcb_Estado<\/span> =<\/span> 2<\/span>;<\/span> \/\/ tama\u00f1o incompleto<\/span>\r\n \u00a0\u00a0\u00a0return<\/span>;<\/span>\r\n \u00a0}<\/span>\r\n \u00a0if<\/span> (<\/span>dir_envio<\/span> !=<\/span> dir_local<\/span>)<\/span>{<\/span>\r\n \u00a0\u00a0\u00a0paqRcb_Estado<\/span> =<\/span> 3<\/span>;<\/span> \/\/ otro destino<\/span>\r\n \u00a0\u00a0\u00a0return<\/span>;<\/span>\r\n \u00a0}<\/span>\r\n \u00a0if<\/span> (<\/span>dir_envio<\/span> ==<\/span> 0xFF<\/span>)<\/span> {<\/span>\r\n \u00a0\u00a0\u00a0paqRcb_Estado<\/span> =<\/span> 4<\/span>;<\/span> \/\/ Broadcast, difusion<\/span>\r\n \u00a0\u00a0\u00a0return<\/span>;<\/span>\r\n \u00a0}<\/span>\r\n \u00a0paqRcb_Estado<\/span> =<\/span> 1<\/span>;<\/span> \u00a0\u00a0\/\/ mensaje Nuevo<\/span>\r\n}<\/span>\r\n<\/pre>\n
MQTT- inicia<\/h3>\n
\"LoRa<\/a><\/p>\n
void<\/span> inicia_mqtt<\/span>(<\/span>void<\/span>)<\/span>{<\/span>\r\n \u00a0int<\/span> esperamqtt<\/span> =<\/span> 5<\/span>;<\/span>\r\n \u00a0int<\/span> cuentamqtt<\/span> =<\/span> 0<\/span>;<\/span>\r\n \u00a0\r\n \u00a0if<\/span> (<\/span>serial_msj<\/span>)<\/span>{<\/span>\r\n \u00a0\u00a0\u00a0Serial<\/span><\/b>.<\/span>print<\/span>(<\/span>\" MQTT Conectando a \"<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0Serial<\/span><\/b>.<\/span>println<\/span>(<\/span>MQTT_IP<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0}<\/span>\r\n\r\n \u00a0mqttclient<\/span>.<\/span>setServer<\/span>(<\/span>MQTT_IP<\/span>,<\/span> MQTT_puerto<\/span>)<\/span>;<\/span>\r\n \u00a0mqttclient<\/span>.<\/span>connect<\/span>(<\/span>MQTT_ID<\/span>,<\/span> MQTT_usuario<\/span>,<\/span> MQTT_contrasena<\/span>)<\/span>;<\/span>\r\n \u00a0mqttclient<\/span>.<\/span>setCallback<\/span>(<\/span>recibe_mqtt<\/span>)<\/span>;<\/span>\r\n \u00a0\r\n \u00a0while<\/span> (<\/span>!<\/span>mqttclient<\/span>.<\/span>connected<\/span>(<\/span>)<\/span> &&<\/span> (<\/span>cuentamqtt<\/span><=<\/span>esperamqtt<\/span>)<\/span>)<\/span> {<\/span>\r\n \u00a0\u00a0\u00a0cuentamqtt<\/span> =<\/span> cuentamqtt<\/span> +<\/span> 1<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0if<\/span> (<\/span>serial_msj<\/span>)<\/span>{<\/span>\r\n \u00a0\u00a0\u00a0\u00a0\u00a0Serial<\/span><\/b>.<\/span>print<\/span>(<\/span>\".\"<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0}<\/span>\r\n \u00a0\u00a0\u00a0\/\/ LED Monitor parpadeo MQTT<\/span>\r\n \u00a0\u00a0\u00a0digitalWrite<\/span>(<\/span>LED_pin<\/span>,<\/span> HIGH<\/span>)<\/span>;<\/span> delay<\/span>(<\/span>200<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0digitalWrite<\/span>(<\/span>LED_pin<\/span>,<\/span> LOW<\/span>)<\/span>;<\/span> \u00a0delay<\/span>(<\/span>200<\/span>)<\/span>;<\/span>\r\n \u00a0}<\/span>\r\n \u00a0\r\n \u00a0if<\/span> (<\/span>mqttclient<\/span>.<\/span>connected<\/span>(<\/span>)<\/span>)<\/span>{<\/span>\r\n \u00a0\u00a0\u00a0\/\/ publica_mqtt();<\/span>\r\n \u00a0\u00a0\u00a0\/\/ suscribe a todos los topicos base<\/span>\r\n \u00a0}<\/span>\r\n \u00a0\r\n \u00a0if<\/span> (<\/span>serial_msj<\/span>)<\/span>{<\/span>\r\n \u00a0\u00a0\u00a0\/\/Fin de \"....\"<\/span>\r\n \u00a0\u00a0\u00a0Serial<\/span><\/b>.<\/span>print<\/span>(<\/span>\"\\n MQTT Conectado: \"<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0Serial<\/span><\/b>.<\/span>print<\/span>(<\/span>mqttclient<\/span>.<\/span>connected<\/span>(<\/span>)<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0Serial<\/span><\/b>.<\/span>print<\/span>(<\/span>\"\\t Estado: \"<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0Serial<\/span><\/b>.<\/span>println<\/span>(<\/span>mqttclient<\/span>.<\/span>state<\/span>(<\/span>)<\/span>)<\/span>;<\/span>\r\n \u00a0}<\/span>\r\n}<\/span>\r\n<\/pre>\n
MQTT- publica mensaje<\/h3>\n
\"LoRa<\/a><\/p>\n
void<\/span> publica_mqtt<\/span>(<\/span>)<\/span> {<\/span> \r\n \u00a0paqueteRcb<\/span>.<\/span>toCharArray<\/span>(<\/span>MQTT_SensorEstado<\/span>,<\/span>\r\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0paqueteRcb<\/span>.<\/span>length<\/span>(<\/span>)<\/span>+<\/span>1<\/span>)<\/span>;<\/span>\r\n\r\n \u00a0\/\/ MQTT Construye t\u00f3pico por remitente<\/span>\r\n \u00a0String<\/span> remite<\/span> =<\/span> String<\/span>(<\/span>dir_remite<\/span>,<\/span> HEX<\/span>)<\/span>;<\/span>\r\n \u00a0remite<\/span>.<\/span>toUpperCase<\/span>(<\/span>)<\/span>;<\/span>\r\n \u00a0String<\/span> topico<\/span> =<\/span> topico_base<\/span> +<\/span> remite<\/span> +<\/span> topico_valor<\/span>;<\/span>\r\n \u00a0topico<\/span>.<\/span>toCharArray<\/span>(<\/span>MQTT_TOPIC<\/span>,<\/span>topico<\/span>.<\/span>length<\/span>(<\/span>)<\/span>+<\/span>1<\/span>)<\/span>;<\/span>\r\n \u00a0if<\/span> (<\/span>serial_msj<\/span>==<\/span>true<\/span>)<\/span>{<\/span>\r\n \u00a0\u00a0\u00a0Serial<\/span><\/b>.<\/span>print<\/span>(<\/span>\" \u00a0\"<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0Serial<\/span><\/b>.<\/span>print<\/span>(<\/span>topico<\/span>)<\/span>;<\/span> Serial<\/span><\/b>.<\/span>print<\/span>(<\/span>\"\/\"<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0Serial<\/span><\/b>.<\/span>println<\/span>(<\/span>MQTT_SensorEstado<\/span>)<\/span>;<\/span>\r\n \u00a0}<\/span>\r\n \u00a0\/\/ MQTT Construye t\u00f3pico por remitente<\/span>\r\n \u00a0\u00a0\u00a0String<\/span> topico_cmd<\/span> =<\/span> \"\"<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0topico_cmd<\/span> +=<\/span> topico_base<\/span> +<\/span> remite<\/span> +<\/span>\"\/cambia\"<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0topico_cmd<\/span>.<\/span>toCharArray<\/span>(<\/span>MQTT_COMMAND<\/span>,<\/span>topico_cmd<\/span>.<\/span>length<\/span>(<\/span>)<\/span>+<\/span>1<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0if<\/span> (<\/span>serial_msj<\/span>==<\/span>true<\/span>)<\/span>{<\/span>\r\n \u00a0\u00a0\u00a0\u00a0\u00a0Serial<\/span><\/b>.<\/span>print<\/span>(<\/span>\" \u00a0sucrito: \"<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0\u00a0\u00a0Serial<\/span><\/b>.<\/span>println<\/span>(<\/span>MQTT_COMMAND<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0}<\/span>\r\n \u00a0\u00a0\u00a0\r\n \u00a0if<\/span> (<\/span>mqttclient<\/span>.<\/span>connected<\/span>(<\/span>)<\/span>==<\/span>true<\/span>)<\/span>{<\/span>\r\n \u00a0\u00a0\u00a0mqttclient<\/span>.<\/span>publish<\/span>(<\/span>MQTT_TOPIC<\/span>,<\/span>MQTT_SensorEstado<\/span>,<\/span>true<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0mqttclient<\/span>.<\/span>subscribe<\/span>(<\/span>MQTT_COMMAND<\/span>)<\/span>;<\/span>\r\n \u00a0}<\/span>else<\/span>{<\/span>\r\n \u00a0\u00a0\u00a0mqtt_desconectado<\/span> =<\/span> true<\/span>;<\/span>\r\n \u00a0}<\/span>\r\n}<\/span>\r\n<\/pre>\n
MQTT- Recibe mensaje<\/h3>\n
\"LoRa<\/a><\/p>\n
\/\/ llega mensaje MQTT, callback mqtt sin confirmaci\u00f3n<\/span>\r\nvoid<\/span> recibe_mqtt<\/span>(<\/span>char<\/span>*<\/span> p_topic<\/span>,<\/span> byte<\/span>*<\/span> p_payload<\/span>,<\/span>\r\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0unsigned<\/span> int<\/span> p_length<\/span>)<\/span> {<\/span>\r\n \u00a0if<\/span> (<\/span>serial_msj<\/span>)<\/span>{<\/span>\r\n \u00a0\u00a0\u00a0Serial<\/span><\/b>.<\/span>println<\/span>(<\/span>\"Recibe mensaje MQTT\"<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0Serial<\/span><\/b>.<\/span>println<\/span>(<\/span>p_topic<\/span>)<\/span>;<\/span>\r\n \u00a0}<\/span>\r\n \u00a0\/\/ convierte a texto<\/span>\r\n \u00a0String<\/span> payload<\/span>;<\/span>\r\n \u00a0for<\/span> (<\/span>uint8_t<\/span> i<\/span> =<\/span> 0<\/span>;<\/span> i<\/span> <<\/span> p_length<\/span>;<\/span> i<\/span>++<\/span>)<\/span> {<\/span>\r\n \u00a0\u00a0\u00a0payload<\/span>.<\/span>concat<\/span>(<\/span>(<\/span>char<\/span>)<\/span>p_payload<\/span>[<\/span>i<\/span>]<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0}<\/span>\r\n \u00a0paqueteEnv<\/span> =<\/span> payload<\/span>;<\/span>\r\n \u00a0\r\n \u00a0\/\/ direccion destino<\/span>\r\n \u00a0char<\/span> dispositivo<\/span>[<\/span>3<\/span>]<\/span> =<\/span> \"D0\"<\/span>;<\/span>\r\n \u00a0int<\/span> desde<\/span> =<\/span> topico_base<\/span>.<\/span>length<\/span>(<\/span>)<\/span>;<\/span>\r\n \u00a0dispositivo<\/span>[<\/span>0<\/span>]<\/span> =<\/span> p_topic<\/span>[<\/span>desde<\/span>]<\/span>;<\/span>\r\n \u00a0dispositivo<\/span>[<\/span>1<\/span>]<\/span> =<\/span> p_topic<\/span>[<\/span>desde<\/span>+<\/span>1<\/span>]<\/span>;<\/span>\r\n \u00a0dir_destino<\/span> =<\/span> (<\/span>int<\/span>)<\/span> strtol<\/span>(<\/span>dispositivo<\/span>,<\/span>NULL<\/span>,<\/span>16<\/span>)<\/span>;<\/span>\r\n\r\n \u00a0actuador_bandera<\/span> =<\/span> true<\/span>;<\/span>\r\n \u00a0if<\/span> (<\/span>mqttclient<\/span>.<\/span>connected<\/span>(<\/span>)<\/span>==<\/span>true<\/span>)<\/span>{<\/span>\r\n \u00a0\u00a0\u00a0mqttclient<\/span>.<\/span>subscribe<\/span>(<\/span>MQTT_COMMAND<\/span>)<\/span>;<\/span>\r\n \u00a0}<\/span>else<\/span>{<\/span>\r\n \u00a0\u00a0\u00a0mqtt_desconectado<\/span> =<\/span> true<\/span>;<\/span>\r\n \u00a0}<\/span>\r\n}<\/span>\r\n<\/pre>\n
WiFi - inicio<\/h3>\n
\"LoRa<\/a><\/p>\n
void<\/span> inicia_wifi<\/span>(<\/span>void<\/span>)<\/span> {<\/span>\r\n \u00a0int<\/span> esperawifi<\/span> =<\/span> 10<\/span>;<\/span> \u00a0\/\/ >=10 para conectar<\/span>\r\n \u00a0int<\/span> cuentawifi<\/span> =<\/span> 0<\/span>;<\/span>\r\n \u00a0\r\n \u00a0if<\/span> (<\/span>serial_msj<\/span>)<\/span>{<\/span>\r\n \u00a0\u00a0\u00a0Serial<\/span><\/b>.<\/span>print<\/span>(<\/span>\" WiFi Conectando a \"<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0Serial<\/span><\/b>.<\/span>println<\/span>(<\/span>ssid<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0}<\/span>\r\n \u00a0\r\n \u00a0WiFi<\/span><\/b>.<\/span>disconnect<\/span>(<\/span>true<\/span>)<\/span>;<\/span>\r\n \u00a0delay<\/span>(<\/span>1000<\/span>)<\/span>;<\/span>\r\n \u00a0\r\n \u00a0WiFi<\/span><\/b>.<\/span>mode<\/span>(<\/span>WIFI_STA<\/span>)<\/span>;<\/span>\r\n \u00a0WiFi<\/span><\/b>.<\/span>setAutoConnect<\/span>(<\/span>true<\/span>)<\/span>;<\/span>\r\n \u00a0WiFi<\/span><\/b>.<\/span>begin<\/span>(<\/span>ssid<\/span>,<\/span>password<\/span>)<\/span>;<\/span>\r\n \u00a0delay<\/span>(<\/span>100<\/span>)<\/span>;<\/span>\r\n \u00a0\r\n \u00a0while<\/span>(<\/span>WiFi<\/span><\/b>.<\/span>status<\/span>(<\/span>)<\/span> !=<\/span> WL_CONNECTED<\/span> &&<\/span> \r\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0(<\/span>cuentawifi<\/span> <<\/span> esperawifi<\/span>)<\/span>)<\/span>{<\/span>\r\n \u00a0\u00a0\u00a0cuentawifi<\/span> =<\/span> cuentawifi<\/span> +<\/span> 1<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0if<\/span> (<\/span>serial_msj<\/span>)<\/span>{<\/span>\r\n \u00a0\u00a0\u00a0\u00a0\u00a0Serial<\/span><\/b>.<\/span>print<\/span>(<\/span>\".\"<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0}<\/span>\r\n \u00a0\u00a0\u00a0\/\/ Parpadeo de Monitor Wifi<\/span>\r\n \u00a0\u00a0\u00a0digitalWrite<\/span>(<\/span>LED_pin<\/span>,<\/span> HIGH<\/span>)<\/span>;<\/span> delay<\/span>(<\/span>300<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0digitalWrite<\/span>(<\/span>LED_pin<\/span>,<\/span> LOW<\/span>)<\/span>;<\/span> \u00a0delay<\/span>(<\/span>200<\/span>)<\/span>;<\/span>\r\n \u00a0}<\/span>\r\n \u00a0\r\n \u00a0if<\/span> (<\/span>serial_msj<\/span>)<\/span>{<\/span>\r\n \u00a0\u00a0\u00a0\/\/ mensaje a serial, Fin de \"...\"<\/span>\r\n \u00a0\u00a0\u00a0Serial<\/span><\/b>.<\/span>println<\/span>(<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0if<\/span> (<\/span>WiFi<\/span><\/b>.<\/span>status<\/span>(<\/span>)<\/span> ==<\/span> WL_CONNECTED<\/span>)<\/span>{<\/span>\r\n \u00a0\u00a0\u00a0\u00a0\u00a0Serial<\/span><\/b>.<\/span>print<\/span>(<\/span>\" Estado: \"<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0\u00a0\u00a0Serial<\/span><\/b>.<\/span>println<\/span>(<\/span>WiFi<\/span><\/b>.<\/span>status<\/span>(<\/span>)<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0\u00a0\u00a0Serial<\/span><\/b>.<\/span>print<\/span>(<\/span>\" MAC: \"<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0\u00a0\u00a0Serial<\/span><\/b>.<\/span>println<\/span>(<\/span>WiFi<\/span><\/b>.<\/span>macAddress<\/span>(<\/span>)<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0\u00a0\u00a0Serial<\/span><\/b>.<\/span>print<\/span>(<\/span>\" IP: \"<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0\u00a0\u00a0Serial<\/span><\/b>.<\/span>println<\/span>(<\/span>WiFi<\/span><\/b>.<\/span>localIP<\/span>(<\/span>)<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0\u00a0\u00a0Serial<\/span><\/b>.<\/span>print<\/span>(<\/span>\" RSSI: \"<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0\u00a0\u00a0Serial<\/span><\/b>.<\/span>println<\/span>(<\/span>WiFi<\/span><\/b>.<\/span>RSSI<\/span>(<\/span>)<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0\u00a0\u00a0Serial<\/span><\/b>.<\/span>println<\/span>(<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0}<\/span>\r\n \u00a0\u00a0\u00a0if<\/span> (<\/span>WiFi<\/span><\/b>.<\/span>status<\/span>(<\/span>)<\/span> !=<\/span> WL_CONNECTED<\/span>)<\/span>{<\/span>\r\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0WiFi<\/span><\/b>.<\/span>printDiag<\/span>(<\/span>Serial<\/span><\/b>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Serial<\/span><\/b>.<\/span>println<\/span>(<\/span>)<\/span>;<\/span>\r\n \u00a0\u00a0\u00a0}<\/span>\r\n \u00a0}<\/span>\r\n}<\/span>\r\n<\/pre>\n
.<\/p>\n","protected":false},"excerpt":{"rendered":"
El prototipo para un gateway simple se inicia con la funci\u00f3n de recepci\u00f3n de mensajes que hay que procesar para enviarlos aun servidor MQTT. A partir de donde se gestionan los datos de los sensores. Para el prototipo se usa placa de desarrollo que contiene: un\u00a0 m\u00f3dulo LoRa y un SoC ESP32. Si se reutiliza … <\/p>\n
Continuar leyendo \"2.3 LoRa Multipunto - Gateway.ino b\u00e1sico con LoRa-ESP32\"<\/span><\/a><\/p>\n","protected":false},"author":8043,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1436897],"tags":[602214,1457738],"class_list":["post-2168","post","type-post","status-publish","format-standard","hentry","category-lora-multipunto","tag-iot","tag-lora"],"_links":{"self":[{"href":"https:\/\/blog.espol.edu.ec\/girni\/wp-json\/wp\/v2\/posts\/2168","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.espol.edu.ec\/girni\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.espol.edu.ec\/girni\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.espol.edu.ec\/girni\/wp-json\/wp\/v2\/users\/8043"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.espol.edu.ec\/girni\/wp-json\/wp\/v2\/comments?post=2168"}],"version-history":[{"count":7,"href":"https:\/\/blog.espol.edu.ec\/girni\/wp-json\/wp\/v2\/posts\/2168\/revisions"}],"predecessor-version":[{"id":4152,"href":"https:\/\/blog.espol.edu.ec\/girni\/wp-json\/wp\/v2\/posts\/2168\/revisions\/4152"}],"wp:attachment":[{"href":"https:\/\/blog.espol.edu.ec\/girni\/wp-json\/wp\/v2\/media?parent=2168"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.espol.edu.ec\/girni\/wp-json\/wp\/v2\/categories?post=2168"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.espol.edu.ec\/girni\/wp-json\/wp\/v2\/tags?post=2168"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}