x 過去ログを見よ!!
x パケロスするが気にするな!!
x シリアルがかけるが気にするな!!
おだいの、温度センサー
スイッチサイエンス
参考
目的
最小限の小改造で温度を無線転送
USBシリアル内蔵のESP32-S3とESP32-C6は、
なぜか、シリアルでこけるので小改造する
改造とは、ichgojam系の小学生が自作ゲームをいじる時に使う言葉
なぜかここでこけるので改造する
while (!Serial) {
delay(10);
}
改造後
//while (!Serial) {
// delay(10);
//}
for(int i=0;i<16;i++){
Serial.print(".");
delay(1000);
}//for
Serial.println();
この後、温度センサー系を合成する
合成とは、新しい攻撃系の魔法を作る時に使う。
元のプログラム
// Demo code for Grove - Temperature Sensor V1.1/1.2
// Loovee @ 2015-8-26
#include <math.h>
const int B = 4275; // B value of the thermistor
const int R0 = 100000; // R0 = 100k
//const int pinTempSensor = A0; // Grove - Temperature Sensor connect to A0
const int pinTempSensor = 1; // Grove - Temperature Sensor connect to G1
#if defined(ARDUINO_ARCH_AVR)
#define debug Serial
#elif defined(ARDUINO_ARCH_SAMD) || defined(ARDUINO_ARCH_SAM)
#define debug SerialUSB
#else
#define debug Serial
#endif
void setup()
{
Serial.begin(9600);
}
void loop()
{
int a = analogRead(pinTempSensor);
//float R = 1023.0/a-1.0;
//R = R0*R;
float R,v1,a1,o1;
v1 = ((float)a) * 0.001; //電圧を求める
a1 = v1 / 100000.0; //電流を求める
o1 = 5.0 / a1; //全体の抵抗を求める
R = o1 - 100000.0; //全体の抵抗から検出抵抗を引く
float temperature = 1.0/(log(R/R0)/B+1/298.15)-273.15; // convert to temperature via datasheet
Serial.print("temperature = ");
Serial.println(temperature);
delay(100);
}
基本、わかっているか、わからないけど
M5NanoC6やM5StampS3は、基本、リセットがないから
最初から実行したい時は、抜き差しをして開始させると
シリアルで最初の画面がでるよ(基本)
USBを抜く、USBを挿す、素早くテレタームを開く
結果
(ホストとスレーブ)
プログラム
(ホストNanoC6(温度))
/*
ESP-NOW Broadcast Master
Lucas Saavedra Vaz - 2024
This sketch demonstrates how to broadcast messages to all devices within the ESP-NOW network.
This example is intended to be used with the ESP-NOW Broadcast Slave example.
The master device will broadcast a message every 5 seconds to all devices within the network.
This will be done using by registering a peer object with the broadcast address.
The slave devices will receive the broadcasted messages and print them to the Serial Monitor.
*/
#include "ESP32_NOW.h"
#include "WiFi.h"
#include <esp_mac.h> // For the MAC2STR and MACSTR macros
#include <math.h> //logの計算等で使う
/* Definitions */
#define ESPNOW_WIFI_CHANNEL 6
/* Classes */
// Creating a new class that inherits from the ESP_NOW_Peer class is required.
class ESP_NOW_Broadcast_Peer : public ESP_NOW_Peer {
public:
// Constructor of the class using the broadcast address
ESP_NOW_Broadcast_Peer(uint8_t channel, wifi_interface_t iface, const uint8_t *lmk) : ESP_NOW_Peer(ESP_NOW.BROADCAST_ADDR, channel, iface, lmk) {}
// Destructor of the class
~ESP_NOW_Broadcast_Peer() {
remove();
}
// Function to properly initialize the ESP-NOW and register the broadcast peer
bool begin() {
if (!ESP_NOW.begin() || !add()) {
log_e("Failed to initialize ESP-NOW or register the broadcast peer");
return false;
}
return true;
}
// Function to send a message to all devices within the network
bool send_message(const uint8_t *data, size_t len) {
if (!send(data, len)) {
log_e("Failed to broadcast message");
return false;
}
return true;
}
};
/* Global Variables */
uint32_t msg_count = 0;
// Create a broadcast peer object
ESP_NOW_Broadcast_Peer broadcast_peer(ESPNOW_WIFI_CHANNEL, WIFI_IF_STA, NULL);
/* Main */
void setup() {
Serial.begin(115200);
//while (!Serial) {
// delay(10);
//}
for(int i=0;i<16;i++){
Serial.print(".");
delay(1000);
}//for
Serial.println();
// Initialize the Wi-Fi module
WiFi.mode(WIFI_STA);
WiFi.setChannel(ESPNOW_WIFI_CHANNEL);
while (!WiFi.STA.started()) {
delay(100);
}
Serial.println("ESP-NOW Example - Broadcast Master");
Serial.println("Wi-Fi parameters:");
Serial.println(" Mode: STA");
Serial.println(" MAC Address: " + WiFi.macAddress());
Serial.printf(" Channel: %d\n", ESPNOW_WIFI_CHANNEL);
// Register the broadcast peer
if (!broadcast_peer.begin()) {
Serial.println("Failed to initialize broadcast peer");
Serial.println("Reebooting in 5 seconds...");
delay(5000);
ESP.restart();
}
Serial.println("Setup complete. Broadcasting messages every 5 seconds.");
}
void loop() {
// Broadcast a message to all devices within the network
static char data[256+1];
//↓温度センサーの処理を開始
int B = 4275; // B value of the thermistor
int R0 = 100000; // R0 = 100k
int pinTempSensor = 1; // Grove - Temperature Sensor connect to G1
int a = analogRead(pinTempSensor);
//float R = 1023.0/a-1.0;
//R = R0*R;
float R,v1,a1,o1;
v1 = ((float)a) * 0.001; //電圧を求める
a1 = v1 / 100000.0; //電流を求める
o1 = 5.0 / a1; //全体の抵抗を求める
R = o1 - 100000.0; //全体の抵抗から検出抵抗を引く
float temperature = 1.0/(log(R/R0)/B+1/298.15)-273.15; // convert to temperature via datasheet
//↑温度センサーの処理が終了
snprintf(data, sizeof(data), "temperature = %d #%lu",(int)temperature, msg_count++);
Serial.printf("Broadcasting message: %s\n", data);
if (!broadcast_peer.send_message((uint8_t *)data, sizeof(data))) {
Serial.println("Failed to broadcast message");
}
delay(5000);
}
(スレーブStampS3(シリアル出力))
/*
ESP-NOW Broadcast Slave
Lucas Saavedra Vaz - 2024
This sketch demonstrates how to receive broadcast messages from a master device using the ESP-NOW protocol.
The master device will broadcast a message every 5 seconds to all devices within the network.
The slave devices will receive the broadcasted messages. If they are not from a known master, they will be registered as a new master
using a callback function.
*/
#include "ESP32_NOW.h"
#include "WiFi.h"
#include <esp_mac.h> // For the MAC2STR and MACSTR macros
#include <vector>
/* Definitions */
#define ESPNOW_WIFI_CHANNEL 6
/* Classes */
// Creating a new class that inherits from the ESP_NOW_Peer class is required.
class ESP_NOW_Peer_Class : public ESP_NOW_Peer {
public:
// Constructor of the class
ESP_NOW_Peer_Class(const uint8_t *mac_addr, uint8_t channel, wifi_interface_t iface, const uint8_t *lmk) : ESP_NOW_Peer(mac_addr, channel, iface, lmk) {}
// Destructor of the class
~ESP_NOW_Peer_Class() {}
// Function to register the master peer
bool add_peer() {
if (!add()) {
log_e("Failed to register the broadcast peer");
return false;
}
return true;
}
// Function to print the received messages from the master
void onReceive(const uint8_t *data, size_t len, bool broadcast) {
Serial.printf("Received a message from master " MACSTR " (%s)\n", MAC2STR(addr()), broadcast ? "broadcast" : "unicast");
Serial.printf(" Message: %s\n", (char *)data);
}
};
/* Global Variables */
// List of all the masters. It will be populated when a new master is registered
std::vector<ESP_NOW_Peer_Class> masters;
/* Callbacks */
// Callback called when an unknown peer sends a message
void register_new_master(const esp_now_recv_info_t *info, const uint8_t *data, int len, void *arg) {
if (memcmp(info->des_addr, ESP_NOW.BROADCAST_ADDR, 6) == 0) {
Serial.printf("Unknown peer " MACSTR " sent a broadcast message\n", MAC2STR(info->src_addr));
Serial.println("Registering the peer as a master");
ESP_NOW_Peer_Class new_master(info->src_addr, ESPNOW_WIFI_CHANNEL, WIFI_IF_STA, NULL);
masters.push_back(new_master);
if (!masters.back().add_peer()) {
Serial.println("Failed to register the new master");
return;
}
} else {
// The slave will only receive broadcast messages
log_v("Received a unicast message from " MACSTR, MAC2STR(info->src_addr));
log_v("Igorning the message");
}
}
/* Main */
void setup() {
Serial.begin(115200);
//while (!Serial) {
// delay(10);
//}
for(int i=0;i<16;i++){
Serial.print(".");
delay(1000);
}//for
Serial.println();
// Initialize the Wi-Fi module
WiFi.mode(WIFI_STA);
WiFi.setChannel(ESPNOW_WIFI_CHANNEL);
while (!WiFi.STA.started()) {
delay(100);
}
Serial.println("ESP-NOW Example - Broadcast Slave");
Serial.println("Wi-Fi parameters:");
Serial.println(" Mode: STA");
Serial.println(" MAC Address: " + WiFi.macAddress());
Serial.printf(" Channel: %d\n", ESPNOW_WIFI_CHANNEL);
// Initialize the ESP-NOW protocol
if (!ESP_NOW.begin()) {
Serial.println("Failed to initialize ESP-NOW");
Serial.println("Reeboting in 5 seconds...");
delay(5000);
ESP.restart();
}
// Register the new peer callback
ESP_NOW.onNewPeer(register_new_master, NULL);
Serial.println("Setup complete. Waiting for a master to broadcast a message...");
}
void loop() {
delay(1000);
}
●●●●●●●●●●参考●●●●●●●●●●
もとのプログラム
/*
ESP-NOW Broadcast Master
Lucas Saavedra Vaz - 2024
This sketch demonstrates how to broadcast messages to all devices within the ESP-NOW network.
This example is intended to be used with the ESP-NOW Broadcast Slave example.
The master device will broadcast a message every 5 seconds to all devices within the network.
This will be done using by registering a peer object with the broadcast address.
The slave devices will receive the broadcasted messages and print them to the Serial Monitor.
*/
#include "ESP32_NOW.h"
#include "WiFi.h"
#include <esp_mac.h> // For the MAC2STR and MACSTR macros
/* Definitions */
#define ESPNOW_WIFI_CHANNEL 6
/* Classes */
// Creating a new class that inherits from the ESP_NOW_Peer class is required.
class ESP_NOW_Broadcast_Peer : public ESP_NOW_Peer {
public:
// Constructor of the class using the broadcast address
ESP_NOW_Broadcast_Peer(uint8_t channel, wifi_interface_t iface, const uint8_t *lmk) : ESP_NOW_Peer(ESP_NOW.BROADCAST_ADDR, channel, iface, lmk) {}
// Destructor of the class
~ESP_NOW_Broadcast_Peer() {
remove();
}
// Function to properly initialize the ESP-NOW and register the broadcast peer
bool begin() {
if (!ESP_NOW.begin() || !add()) {
log_e("Failed to initialize ESP-NOW or register the broadcast peer");
return false;
}
return true;
}
// Function to send a message to all devices within the network
bool send_message(const uint8_t *data, size_t len) {
if (!send(data, len)) {
log_e("Failed to broadcast message");
return false;
}
return true;
}
};
/* Global Variables */
uint32_t msg_count = 0;
// Create a broadcast peer object
ESP_NOW_Broadcast_Peer broadcast_peer(ESPNOW_WIFI_CHANNEL, WIFI_IF_STA, NULL);
/* Main */
void setup() {
Serial.begin(115200);
while (!Serial) {
delay(10);
}
// Initialize the Wi-Fi module
WiFi.mode(WIFI_STA);
WiFi.setChannel(ESPNOW_WIFI_CHANNEL);
while (!WiFi.STA.started()) {
delay(100);
}
Serial.println("ESP-NOW Example - Broadcast Master");
Serial.println("Wi-Fi parameters:");
Serial.println(" Mode: STA");
Serial.println(" MAC Address: " + WiFi.macAddress());
Serial.printf(" Channel: %d\n", ESPNOW_WIFI_CHANNEL);
// Register the broadcast peer
if (!broadcast_peer.begin()) {
Serial.println("Failed to initialize broadcast peer");
Serial.println("Reebooting in 5 seconds...");
delay(5000);
ESP.restart();
}
Serial.println("Setup complete. Broadcasting messages every 5 seconds.");
}
void loop() {
// Broadcast a message to all devices within the network
char data[32];
snprintf(data, sizeof(data), "Hello, World! #%lu", msg_count++);
Serial.printf("Broadcasting message: %s\n", data);
if (!broadcast_peer.send_message((uint8_t *)data, sizeof(data))) {
Serial.println("Failed to broadcast message");
}
delay(5000);
}
/*
ESP-NOW Broadcast Slave
Lucas Saavedra Vaz - 2024
This sketch demonstrates how to receive broadcast messages from a master device using the ESP-NOW protocol.
The master device will broadcast a message every 5 seconds to all devices within the network.
The slave devices will receive the broadcasted messages. If they are not from a known master, they will be registered as a new master
using a callback function.
*/
#include "ESP32_NOW.h"
#include "WiFi.h"
#include <esp_mac.h> // For the MAC2STR and MACSTR macros
#include <vector>
/* Definitions */
#define ESPNOW_WIFI_CHANNEL 6
/* Classes */
// Creating a new class that inherits from the ESP_NOW_Peer class is required.
class ESP_NOW_Peer_Class : public ESP_NOW_Peer {
public:
// Constructor of the class
ESP_NOW_Peer_Class(const uint8_t *mac_addr, uint8_t channel, wifi_interface_t iface, const uint8_t *lmk) : ESP_NOW_Peer(mac_addr, channel, iface, lmk) {}
// Destructor of the class
~ESP_NOW_Peer_Class() {}
// Function to register the master peer
bool add_peer() {
if (!add()) {
log_e("Failed to register the broadcast peer");
return false;
}
return true;
}
// Function to print the received messages from the master
void onReceive(const uint8_t *data, size_t len, bool broadcast) {
Serial.printf("Received a message from master " MACSTR " (%s)\n", MAC2STR(addr()), broadcast ? "broadcast" : "unicast");
Serial.printf(" Message: %s\n", (char *)data);
}
};
/* Global Variables */
// List of all the masters. It will be populated when a new master is registered
std::vector<ESP_NOW_Peer_Class> masters;
/* Callbacks */
// Callback called when an unknown peer sends a message
void register_new_master(const esp_now_recv_info_t *info, const uint8_t *data, int len, void *arg) {
if (memcmp(info->des_addr, ESP_NOW.BROADCAST_ADDR, 6) == 0) {
Serial.printf("Unknown peer " MACSTR " sent a broadcast message\n", MAC2STR(info->src_addr));
Serial.println("Registering the peer as a master");
ESP_NOW_Peer_Class new_master(info->src_addr, ESPNOW_WIFI_CHANNEL, WIFI_IF_STA, NULL);
masters.push_back(new_master);
if (!masters.back().add_peer()) {
Serial.println("Failed to register the new master");
return;
}
} else {
// The slave will only receive broadcast messages
log_v("Received a unicast message from " MACSTR, MAC2STR(info->src_addr));
log_v("Igorning the message");
}
}
/* Main */
void setup() {
Serial.begin(115200);
while (!Serial) {
delay(10);
}
// Initialize the Wi-Fi module
WiFi.mode(WIFI_STA);
WiFi.setChannel(ESPNOW_WIFI_CHANNEL);
while (!WiFi.STA.started()) {
delay(100);
}
Serial.println("ESP-NOW Example - Broadcast Slave");
Serial.println("Wi-Fi parameters:");
Serial.println(" Mode: STA");
Serial.println(" MAC Address: " + WiFi.macAddress());
Serial.printf(" Channel: %d\n", ESPNOW_WIFI_CHANNEL);
// Initialize the ESP-NOW protocol
if (!ESP_NOW.begin()) {
Serial.println("Failed to initialize ESP-NOW");
Serial.println("Reeboting in 5 seconds...");
delay(5000);
ESP.restart();
}
// Register the new peer callback
ESP_NOW.onNewPeer(register_new_master, NULL);
Serial.println("Setup complete. Waiting for a master to broadcast a message...");
}
void loop() {
delay(1000);
}