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‎libraries/Matter/examples/MatterPressureSensor/MatterPressureSensor.ino

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// Copyright 2024 Espressif Systems (Shanghai) PTE LTD
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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/*
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* This example is an example code that will create a Matter Device which can be
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* commissioned and controlled from a Matter Environment APP.
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* Additionally the ESP32 will send debug messages indicating the Matter activity.
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* Turning DEBUG Level ON may be useful to following Matter Accessory and Controller messages.
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*/
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// Matter Manager
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#include <Matter.h>
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#include <WiFi.h>
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// List of Matter Endpoints for this Node
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// Matter Pressure Sensor Endpoint
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MatterPressureSensor SimulatedPressureSensor;
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// set your board USER BUTTON pin here - decommissioning button
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const uint8_t buttonPin = BOOT_PIN; // Set your pin here. Using BOOT Button.
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// WiFi is manually set and started
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const char *ssid = "your-ssid"; // Change this to your WiFi SSID
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const char *password = "your-password"; // Change this to your WiFi password
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// Button control - decommision the Matter Node
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uint32_t button_time_stamp = 0; // debouncing control
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bool button_state = false; // false = released | true = pressed
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const uint32_t decommissioningTimeout = 5000; // keep the button pressed for 5s, or longer, to decommission
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// Simulate a pressure sensor - add your preferred pressure sensor library code here
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float getSimulatedPressure() {
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// The Endpoint implementation keeps an uint16_t as internal value information,
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// which stores data in hPa (pressure measurement unit)
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static float simulatedPressureHWSensor = 950;
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// it will increase from 950 to 1100 hPa in steps of 10 hPa to simulate a pressure sensor
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simulatedPressureHWSensor = simulatedPressureHWSensor + 10;
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if (simulatedPressureHWSensor > 1100) {
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simulatedPressureHWSensor = 950;
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}
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return simulatedPressureHWSensor;
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}
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void setup() {
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// Initialize the USER BUTTON (Boot button) that will be used to decommission the Matter Node
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pinMode(buttonPin, INPUT_PULLUP);
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Serial.begin(115200);
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// Manually connect to WiFi
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WiFi.begin(ssid, password);
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// Wait for connection
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while (WiFi.status() != WL_CONNECTED) {
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delay(500);
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Serial.print(".");
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}
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Serial.println();
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// set initial pressure sensor measurement
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// Simulated Sensor - it shall initially print 900hPa and then move to the 950 to 1100 hPa as pressure range
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SimulatedPressureSensor.begin(900.00);
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// Matter beginning - Last step, after all EndPoints are initialized
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Matter.begin();
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// Check Matter Accessory Commissioning state, which may change during execution of loop()
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if (!Matter.isDeviceCommissioned()) {
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Serial.println("");
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Serial.println("Matter Node is not commissioned yet.");
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Serial.println("Initiate the device discovery in your Matter environment.");
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Serial.println("Commission it to your Matter hub with the manual pairing code or QR code");
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Serial.printf("Manual pairing code: %s\r\n", Matter.getManualPairingCode().c_str());
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Serial.printf("QR code URL: %s\r\n", Matter.getOnboardingQRCodeUrl().c_str());
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// waits for Matter Pressure Sensor Commissioning.
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uint32_t timeCount = 0;
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while (!Matter.isDeviceCommissioned()) {
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delay(100);
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if ((timeCount++ % 50) == 0) { // 50*100ms = 5 sec
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Serial.println("Matter Node not commissioned yet. Waiting for commissioning.");
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}
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}
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Serial.println("Matter Node is commissioned and connected to Wi-Fi. Ready for use.");
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}
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}
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void loop() {
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static uint32_t timeCounter = 0;
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// Print the current pressure value every 5s
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if (!(timeCounter++ % 10)) { // delaying for 500ms x 10 = 5s
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// Print the current pressure value
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Serial.printf("Current Pressure is %.02fhPa\r\n", SimulatedPressureSensor.getPressure());
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// Update Pressure from the (Simulated) Hardware Sensor
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// Matter APP shall display the updated pressure percent
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SimulatedPressureSensor.setPressure(getSimulatedPressure());
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}
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// Check if the button has been pressed
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if (digitalRead(buttonPin) == LOW && !button_state) {
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// deals with button debouncing
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button_time_stamp = millis(); // record the time while the button is pressed.
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button_state = true; // pressed.
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}
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if (digitalRead(buttonPin) == HIGH && button_state) {
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button_state = false; // released
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}
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// Onboard User Button is kept pressed for longer than 5 seconds in order to decommission matter node
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uint32_t time_diff = millis() - button_time_stamp;
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if (button_state && time_diff > decommissioningTimeout) {
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// Factory reset is triggered if the button is pressed longer than 10 seconds
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Serial.println("Decommissioning the Light Matter Accessory. It shall be commissioned again.");
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Matter.decommission();
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}
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delay(500);
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}
1+
// Copyright 2024 Espressif Systems (Shanghai) PTE LTD
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
5+
// You may obtain a copy of the License at
6+
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
14+
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/*
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* This example is an example code that will create a Matter Device which can be
17+
* commissioned and controlled from a Matter Environment APP.
18+
* Additionally the ESP32 will send debug messages indicating the Matter activity.
19+
* Turning DEBUG Level ON may be useful to following Matter Accessory and Controller messages.
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*/
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// Matter Manager
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#include <Matter.h>
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#include <WiFi.h>
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// List of Matter Endpoints for this Node
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// Matter Pressure Sensor Endpoint
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MatterPressureSensor SimulatedPressureSensor;
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// set your board USER BUTTON pin here - decommissioning button
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const uint8_t buttonPin = BOOT_PIN; // Set your pin here. Using BOOT Button.
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// WiFi is manually set and started
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const char *ssid = "your-ssid"; // Change this to your WiFi SSID
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const char *password = "your-password"; // Change this to your WiFi password
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// Button control - decommision the Matter Node
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uint32_t button_time_stamp = 0; // debouncing control
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bool button_state = false; // false = released | true = pressed
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const uint32_t decommissioningTimeout = 5000; // keep the button pressed for 5s, or longer, to decommission
41+
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// Simulate a pressure sensor - add your preferred pressure sensor library code here
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float getSimulatedPressure() {
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// The Endpoint implementation keeps an uint16_t as internal value information,
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// which stores data in hPa (pressure measurement unit)
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static float simulatedPressureHWSensor = 950;
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// it will increase from 950 to 1100 hPa in steps of 10 hPa to simulate a pressure sensor
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simulatedPressureHWSensor = simulatedPressureHWSensor + 10;
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if (simulatedPressureHWSensor > 1100) {
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simulatedPressureHWSensor = 950;
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}
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return simulatedPressureHWSensor;
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}
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void setup() {
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// Initialize the USER BUTTON (Boot button) that will be used to decommission the Matter Node
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pinMode(buttonPin, INPUT_PULLUP);
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Serial.begin(115200);
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// Manually connect to WiFi
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WiFi.begin(ssid, password);
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// Wait for connection
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while (WiFi.status() != WL_CONNECTED) {
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delay(500);
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Serial.print(".");
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}
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Serial.println();
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// set initial pressure sensor measurement
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// Simulated Sensor - it shall initially print 900hPa and then move to the 950 to 1100 hPa as pressure range
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SimulatedPressureSensor.begin(900.00);
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// Matter beginning - Last step, after all EndPoints are initialized
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Matter.begin();
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// Check Matter Accessory Commissioning state, which may change during execution of loop()
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if (!Matter.isDeviceCommissioned()) {
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Serial.println("");
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Serial.println("Matter Node is not commissioned yet.");
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Serial.println("Initiate the device discovery in your Matter environment.");
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Serial.println("Commission it to your Matter hub with the manual pairing code or QR code");
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Serial.printf("Manual pairing code: %s\r\n", Matter.getManualPairingCode().c_str());
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Serial.printf("QR code URL: %s\r\n", Matter.getOnboardingQRCodeUrl().c_str());
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// waits for Matter Pressure Sensor Commissioning.
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uint32_t timeCount = 0;
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while (!Matter.isDeviceCommissioned()) {
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delay(100);
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if ((timeCount++ % 50) == 0) { // 50*100ms = 5 sec
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Serial.println("Matter Node not commissioned yet. Waiting for commissioning.");
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}
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}
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Serial.println("Matter Node is commissioned and connected to Wi-Fi. Ready for use.");
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}
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}
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void loop() {
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static uint32_t timeCounter = 0;
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// Print the current pressure value every 5s
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if (!(timeCounter++ % 10)) { // delaying for 500ms x 10 = 5s
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// Print the current pressure value
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Serial.printf("Current Pressure is %.02fhPa\r\n", SimulatedPressureSensor.getPressure());
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// Update Pressure from the (Simulated) Hardware Sensor
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// Matter APP shall display the updated pressure percent
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SimulatedPressureSensor.setPressure(getSimulatedPressure());
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}
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// Check if the button has been pressed
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if (digitalRead(buttonPin) == LOW && !button_state) {
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// deals with button debouncing
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button_time_stamp = millis(); // record the time while the button is pressed.
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button_state = true; // pressed.
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}
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if (digitalRead(buttonPin) == HIGH && button_state) {
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button_state = false; // released
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}
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// Onboard User Button is kept pressed for longer than 5 seconds in order to decommission matter node
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uint32_t time_diff = millis() - button_time_stamp;
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if (button_state && time_diff > decommissioningTimeout) {
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// Factory reset is triggered if the button is pressed longer than 10 seconds
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Serial.println("Decommissioning the Light Matter Accessory. It shall be commissioned again.");
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Matter.decommission();
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}
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delay(500);
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}

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