remove client code from host directory

host/esp32/.gitignore

-.pio
-.vscode/.browse.c_cpp.db*
-.vscode/c_cpp_properties.json
-.vscode/launch.json
-.vscode/ipch

host/esp32/.vscode/extensions.json

-{
-    // See http://go.microsoft.com/fwlink/?LinkId=827846
-    // for the documentation about the extensions.json format
-    "recommendations": [
-        "platformio.platformio-ide"
-    ],
-    "unwantedRecommendations": [
-        "ms-vscode.cpptools-extension-pack"
-    ]
-}

host/esp32/include/README

-
-This directory is intended for project header files.
-
-A header file is a file containing C declarations and macro definitions
-to be shared between several project source files. You request the use of a
-header file in your project source file (C, C++, etc) located in `src` folder
-by including it, with the C preprocessing directive `#include'.
-
-```src/main.c
-
-#include "header.h"
-
-int main (void)
-{
- ...
-}
-```
-
-Including a header file produces the same results as copying the header file
-into each source file that needs it. Such copying would be time-consuming
-and error-prone. With a header file, the related declarations appear
-in only one place. If they need to be changed, they can be changed in one
-place, and programs that include the header file will automatically use the
-new version when next recompiled. The header file eliminates the labor of
-finding and changing all the copies as well as the risk that a failure to
-find one copy will result in inconsistencies within a program.
-
-In C, the usual convention is to give header files names that end with `.h'.
-It is most portable to use only letters, digits, dashes, and underscores in
-header file names, and at most one dot.
-
-Read more about using header files in official GCC documentation:
-
-* Include Syntax
-* Include Operation
-* Once-Only Headers
-* Computed Includes
-
-https://gcc.gnu.org/onlinedocs/cpp/Header-Files.html

host/esp32/lib/README

-
-This directory is intended for project specific (private) libraries.
-PlatformIO will compile them to static libraries and link into executable file.
-
-The source code of each library should be placed in a an own separate directory
-("lib/your_library_name/[here are source files]").
-
-For example, see a structure of the following two libraries `Foo` and `Bar`:
-
-|--lib
-|  |
-|  |--Bar
-|  |  |--docs
-|  |  |--examples
-|  |  |--src
-|  |     |- Bar.c
-|  |     |- Bar.h
-|  |  |- library.json (optional, custom build options, etc) https://docs.platformio.org/page/librarymanager/config.html
-|  |
-|  |--Foo
-|  |  |- Foo.c
-|  |  |- Foo.h
-|  |
-|  |- README --> THIS FILE
-|
-|- platformio.ini
-|--src
-   |- main.c
-
-and a contents of `src/main.c`:
-```
-#include <Foo.h>
-#include <Bar.h>
-
-int main (void)
-{
-  ...
-}
-
-```
-
-PlatformIO Library Dependency Finder will find automatically dependent
-libraries scanning project source files.
-
-More information about PlatformIO Library Dependency Finder
-- https://docs.platformio.org/page/librarymanager/ldf.html

host/esp32/lib/espnow/src/espnow.cpp

-#include <esp_now.h>
-#include <esp_wifi.h>
-#include "espnow.hpp"
-#include "WiFi.h"
-#include <ESP32Time.h>
-
-uint8_t BROADCAST_MAC[] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}; // leaving this in as possible backup
-esp_now_peer_info_t hostInfo;
-ESP32Time rtc;
-
-void on_data_sent(const uint8_t *mac_addr, esp_now_send_status_t status){
-    Serial.println((String) "Message sent: " + status);
-}
-
-
-void on_data_recv(const uint8_t *mac, const uint8_t *incomingData, int len){
-    data_struct lastData;
-    memcpy(&lastData, incomingData, sizeof(lastData));
-    Serial.println("message copied");
-    Serial.println((String) lastData.values[0]);
-    Serial.println((String) "sent time: " + lastData.timestamp);
-    Serial.println((String) "RTC time: " + rtc.getMillis());
-    Serial.flush();
-}
-
-esp_err_t espnow_setup(){
-    esp_err_t result;
-    WiFi.mode(WIFI_STA);
-    result = esp_now_init();
-    if(result != ESP_OK){
-        //initialization failed
-        return result; // not sure about this
-    }
-
-    memcpy(hostInfo.peer_addr, BROADCAST_MAC, sizeof(BROADCAST_MAC));
-    hostInfo.channel = 0;
-    hostInfo.encrypt = 0;
-    esp_now_add_peer(&hostInfo);
-
-    esp_now_register_recv_cb(on_data_recv);
-    esp_now_register_send_cb(on_data_sent);
-
-    return ESP_OK;
-}
-
-Message :: Message(){
-    memcpy(recipient, BROADCAST_MAC, sizeof(BROADCAST_MAC));
-    config = (config_struct*) malloc(sizeof(config_struct));
-    esp_wifi_get_mac(WIFI_IF_STA, config->host);
-    config->time_millis = rtc.getMillis();
-}
-
-esp_err_t Message::send(){
-    return esp_now_send(recipient, (uint8_t *) &config, sizeof(config));
-}
\ No newline at end of file

host/esp32/lib/espnow/src/espnow.hpp

-#ifndef _ESPNOW
-#define _ESPNOW
-
-#define NUM_SENSORS 10
-
-typedef struct data_struct{
-    int identifiers[NUM_SENSORS];
-    float values[NUM_SENSORS];
-    int amountData;
-    long timestamp; //maybe make this array
-}data_struct;
-
-typedef struct config_struct{
-    uint8_t host[6];
-    long time_millis;
-}config_struct;
-
-class Message{
-    public:
-        Message();
-        esp_err_t send();
-        uint8_t recipient[6];
-
-    private:
-        config_struct *config;
-
-};
-
-esp_err_t espnow_setup();
-
-#endif
\ No newline at end of file

host/esp32/platformio.ini

-; PlatformIO Project Configuration File
-;
-;   Build options: build flags, source filter
-;   Upload options: custom upload port, speed and extra flags
-;   Library options: dependencies, extra library storages
-;   Advanced options: extra scripting
-;
-; Please visit documentation for the other options and examples
-; https://docs.platformio.org/page/projectconf.html
-
-[env:esp32-c3-devkitm-1]
-platform = espressif32
-board = esp32-c3-devkitm-1
-framework = arduino
-monitor_speed=115200
-lib_deps = fbiego/ESP32Time@^2.0.0

host/esp32/src/main.cpp

-#include <Arduino.h>
-#include <esp_wifi.h>
-#include "WiFi.h"
-#include "espnow.hpp"
-
-void setup() {
-  // put your setup code here, to run once:
-  Serial.begin(115200);
-  while(!Serial);
-  Serial.flush();
-  espnow_setup();
-}
-
-int counter = 0;
-void loop() {
-  // put your main code here, to run repeatedly:
-  if(counter++ % 10 == 0){
-    Message* msg = new Message;
-    msg->send();
-    delete msg;
-  }
-
-  Serial.println("No message...");
-  delay(1000);
-} 
\ No newline at end of file

host/esp32/test/README

-
-This directory is intended for PlatformIO Test Runner and project tests.
-
-Unit Testing is a software testing method by which individual units of
-source code, sets of one or more MCU program modules together with associated
-control data, usage procedures, and operating procedures, are tested to
-determine whether they are fit for use. Unit testing finds problems early
-in the development cycle.
-
-More information about PlatformIO Unit Testing:
-- https://docs.platformio.org/en/latest/advanced/unit-testing/index.html