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Merge pull request #25 from LeeLeahy2/4-15-esp-now-client
4-15: Add ESP-NOW client to test 4-13
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‎Example_Sketches/4_15_ESP_NOW_Client/4_15_ESP_NOW_Client.ino‎

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/**********************************************************************
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4_15_ESP_NOW_Client.ino
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Example sketch to test ESP-NOW mode with example 4_13_Muliple_WiFi_Users
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**********************************************************************/
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#include "ESP32_NOW_Serial.h"
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#include "MacAddress.h"
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#include "WiFi.h"
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#include "esp_wifi.h"
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bool RTK_CONFIG_MBEDTLS_EXTERNAL_MEM_ALLOC = false;
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const int32_t channelList[] =
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{
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1,
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8,
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};
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const int32_t channelCount = sizeof(channelList) / sizeof(channelList[0]);
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int32_t channelIndex;
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int32_t channel;
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// Set the MAC address of the device that will receive the data
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const MacAddress macPeer({0xE0, 0x5A, 0x1B, 0xD8, 0x8F, 0x14});
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const wifi_interface_t interface = WIFI_IF_STA;
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const char * testData = "ESP-NOW test data\r\n";
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ESP_NOW_Serial_Class * nowSerial;
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//*********************************************************************
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// Entry point for the application
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void setup()
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{
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Serial.begin(115200);
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Serial.printf("\r\n");
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Serial.printf("%s\r\n", __FILE__);
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}
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//*********************************************************************
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// Idle loop for core 1 of the application
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void loop()
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{
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static uint32_t wifiConnectMsec;
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// Connect to WiFi
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if (!nowSerial)
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{
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// Set the mode
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WiFi.mode(WIFI_MODE_STA);
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esp_wifi_set_protocol(interface,
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WIFI_PROTOCOL_11B
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| WIFI_PROTOCOL_11G
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| WIFI_PROTOCOL_11N);
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// Set the WiFi channel
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channel = channelList[channelIndex++];
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if (channelIndex >= channelCount)
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channelIndex = 0;
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WiFi.setChannel(channel, WIFI_SECOND_CHAN_NONE);
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// Start WiFi if not already running
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Serial.printf("Starting WiFi\r\n");
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while (!WiFi.STA.started())
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delay(100);
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// Create the ESPNow serial object
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esp_now_init();
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nowSerial = new ESP_NOW_Serial_Class(macPeer, channel, interface);
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if (nowSerial)
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{
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Serial.printf("ESP-NOW started\r\n");
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nowSerial->begin(115200);
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wifiConnectMsec = millis();
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}
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}
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// Send the ESP-NOW test data
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else if (nowSerial->availableForWrite())
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{
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size_t bytesWritten;
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Serial.printf("Sending ESP-NOW data\r\n");
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bytesWritten = nowSerial->write((uint8_t *)testData, strlen(testData));
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Serial.printf("bytesWritten: %ld\r\n", bytesWritten);
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if (bytesWritten > 0)
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nowSerial->flush();
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else
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Serial.println("Failed to send data");
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// Done with the ESP-NOW connection
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disconnect();
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delay(1000);
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}
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// Timeout the ESP-NOW link
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else
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{
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if ((millis() - wifiConnectMsec) >= 500)
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disconnect();
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}
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}
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//*********************************************************************
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// Break ESP-NOW link
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void disconnect()
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{
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Serial.printf("Breaking ESP-NOW Link\r\n");
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// Break the ESP-NOW link
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if (nowSerial)
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{
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esp_now_deinit();
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nowSerial->end();
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delete nowSerial;
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nowSerial = nullptr;
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}
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// Stop WiFi
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WiFi.mode((wifi_mode_t)0);
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delay(100);
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}

‎Example_Sketches/4_15_ESP_NOW_Client/makefile‎

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######################################################################
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# makefile
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#
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# Builds the example
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######################################################################
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##########
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# Source files
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##########
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EXAMPLE_SKETCH=4_15_ESP_NOW_Client
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EXECUTABLES += example
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PARTITION_CSV_FILE=RTKEverywhere
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ifeq ($(OS),Windows_NT)
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# Windows NT utilities
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CLEAR=cls
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COPY=copy
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DELETE=rmdir /s
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DIR_LISTING=dir
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TERMINAL_APP=
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TERMINAL_PORT="COM3"
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TERMINAL_PARAMS=
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# Windows NT generic paths
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USER_DIRECTORY_PATH=C:\Users\$(USERNAME)
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ARDUINO_LIBRARY_PATH=$(USER_DIRECTORY_PATH)\Documents\Arduino\libraries
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HOME_BOARD_PATH=$(USER_DIRECTORY_PATH)\AppData\Local\Arduino15\packages\esp32
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PATCH_SRC_PATH=Patch\
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# Windows NT patch source paths
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PARTITION_SRC_PATH=..\$(PARTITION_CSV_FILE).csv
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PATCH_SRC_PATH=Patch\
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# Windows NT patch destination paths
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BLE_PATCH_DST_PATH=$(ARDUINO_LIBRARY_PATH)\ESP32_BleSerial\src\
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MBED_LIB_DEST_PATH=$(HOME_BOARD_PATH)\tools\esp32-arduino-libs\${{ env.ESP_IDF }}\esp32/lib\
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PARTITION_DST_PATH=$(HOME_BOARD_PATH)\hardware\esp32\$(ESP_CORE_VERSION)\tools\partitions\$(PARTITION_CSV_FILE).csv
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else
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# Linux utilities
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CLEAR=clear
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COPY=cp
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DELETE=rm -Rf
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DIR_LISTING=ls
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TERMINAL_APP=minicom
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#TERMINAL_PORT="/dev/ttyACM1"
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TERMINAL_PORT="/dev/ttyUSB0"
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TERMINAL_PARAMS=-b 115200 -8 < /dev/tty
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# Linux generic paths
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USER_DIRECTORY_PATH=~
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ARDUINO_LIBRARY_PATH=$(USER_DIRECTORY_PATH)/Arduino/libraries
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ESP_IDF_PATH=$(HOME_BOARD_PATH)/tools/esp32-arduino-libs
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HOME_BOARD_PATH=$(USER_DIRECTORY_PATH)/.arduino15/packages/esp32
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# Linux patch source paths
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PARTITION_SRC_PATH=../$(PARTITION_CSV_FILE).csv
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PATCH_SRC_PATH=Patch/
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# Linux patch destination paths
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BLE_PATCH_DST_PATH=$(ARDUINO_LIBRARY_PATH)/ESP32_BleSerial/src/
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MBED_LIB_DEST_PATH=$(ESP_IDF_PATH)/$(ESP_IDF_VERSION)/esp32/lib/
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PARTITION_DST_PATH=$(HOME_BOARD_PATH)/hardware/esp32/$(ESP_CORE_VERSION)/tools/partitions/$(PARTITION_CSV_FILE).csv
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endif
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##########
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# Buid all the sources - must be first
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##########
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.PHONY: all
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all: $(EXECUTABLES)
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##########
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# Add ESP32 board support
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##########
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.PHONY: arduino-config
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arduino-config:
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arduino-cli config init --overwrite --additional-urls "https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_index.json,https://espressif.github.io/arduino-esp32/package_esp32_dev_index.json"
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##########
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# Build an example
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##########
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.PHONY: example
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example: build/esp32.esp32.esp32/$(EXAMPLE_SKETCH).ino.bin
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DEBUG_LEVEL=none
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#DEBUG_LEVEL=debug
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PSRAM=disabled
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#PSRAM=enabled
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build/esp32.esp32.esp32/$(EXAMPLE_SKETCH).ino.bin: $(EXAMPLE_SKETCH).ino *.ino makefile
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$(CLEAR)
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arduino-cli compile --fqbn "esp32:esp32:esp32":DebugLevel=$(DEBUG_LEVEL),PSRAM=$(PSRAM) $< \
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--warnings default \
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--build-property build.partitions=$(PARTITION_CSV_FILE) \
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--build-property upload.maximum_size=6291456 \
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--build-property "compiler.cpp.extra_flags=-MMD -c \"-DPOINTPERFECT_TOKEN=$(POINTPERFECT_TOKEN)\" \"-DFIRMWARE_VERSION_MAJOR=$(FIRMWARE_VERSION_MAJOR)\" \"-DFIRMWARE_VERSION_MINOR=$(FIRMWARE_VERSION_MINOR)\" \"-DENABLE_DEVELOPER=$(ENABLE_DEVELOPER)\"" \
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--export-binaries
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##########
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# Upload the example
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##########
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ESPTOOL_PATH=~/Arduino/hardware/espressif/esp32/tools/esptool
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#UPLOAD_SPEED=460800
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UPLOAD_SPEED=921600
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BOOT_LOADER_PATH=~/SparkFun/SparkFun_RTK_Firmware_Uploader/RTK_Firmware_Uploader/resource
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.PHONY: upload
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upload: build/esp32.esp32.esp32/$(EXAMPLE_SKETCH).ino.bin
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python3 $(ESPTOOL_PATH)/esptool.py \
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--chip esp32 \
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--port $(TERMINAL_PORT) \
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--baud $(UPLOAD_SPEED) \
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--before default_reset \
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--after hard_reset \
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write_flash \
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--flash_mode dio \
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--flash_freq 80m \
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--flash_size detect \
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--compress \
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0x1000 $(BOOT_LOADER_PATH)/RTK_Surveyor.ino.bootloader.bin \
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0x8000 $(BOOT_LOADER_PATH)/RTK_Surveyor_Partitions_16MB.bin \
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0xe000 $(BOOT_LOADER_PATH)/boot_app0.bin \
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0x10000 $<
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$(TERMINAL_APP) -D $(TERMINAL_PORT) $(TERMINAL_PARAMS)
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TERMINAL_PORT_2=/dev/ttyUSB1
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.PHONY: upload2
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upload2: build/esp32.esp32.esp32/$(EXAMPLE_SKETCH).ino.bin
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python3 $(ESPTOOL_PATH)/esptool.py \
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--chip esp32 \
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--port $(TERMINAL_PORT_2) \
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--baud $(UPLOAD_SPEED) \
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--before default_reset \
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--after hard_reset \
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write_flash \
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--flash_mode dio \
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--flash_freq 80m \
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--flash_size detect \
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--compress \
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0x1000 $(BOOT_LOADER_PATH)/RTK_Surveyor.ino.bootloader.bin \
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0x8000 $(BOOT_LOADER_PATH)/RTK_Surveyor_Partitions_16MB.bin \
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0xe000 $(BOOT_LOADER_PATH)/boot_app0.bin \
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0x10000 $<
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$(TERMINAL_APP) -D $(TERMINAL_PORT_2) $(TERMINAL_PARAMS)
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TERMINAL_PORT_3=/dev/ttyUSB2
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.PHONY: upload3
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upload3: build/esp32.esp32.esp32/$(EXAMPLE_SKETCH).ino.bin
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python3 $(ESPTOOL_PATH)/esptool.py \
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--chip esp32 \
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--port $(TERMINAL_PORT_3) \
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--baud $(UPLOAD_SPEED) \
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--before default_reset \
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--after hard_reset \
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write_flash \
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--flash_mode dio \
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--flash_freq 80m \
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--flash_size detect \
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--compress \
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0x1000 $(BOOT_LOADER_PATH)/RTK_Surveyor.ino.bootloader.bin \
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0x8000 $(BOOT_LOADER_PATH)/RTK_Surveyor_Partitions_16MB.bin \
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0xe000 $(BOOT_LOADER_PATH)/boot_app0.bin \
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0x10000 $<
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$(TERMINAL_APP) -D $(TERMINAL_PORT_3) $(TERMINAL_PARAMS)
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##########
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# Terminal
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##########
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.PHONY: terminal
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terminal:
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$(TERMINAL_APP) -D $(TERMINAL_PORT) $(TERMINAL_PARAMS)
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.PHONY: terminal2
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terminal2:
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$(TERMINAL_APP) -D $(TERMINAL_PORT_2) $(TERMINAL_PARAMS)
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.PHONY: terminal3
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terminal3:
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$(TERMINAL_APP) -D $(TERMINAL_PORT_3) $(TERMINAL_PARAMS)
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##########
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# Clean up the example
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##########
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clean:
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$(DELETE) build

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