Perfect for just a monitor-controller, or as an IOT HUB for your next project, by using the WiFi module and the NRF24l01 to communicate with other devices in your home.However, there are cases where the use of wired systems for reading these sensors becomes impracticable due to the distance between the measurement point and the sensor reading system or the difficulty in carrying out the installation of the cabling necessary to carry out the installation of the sensor.The equipment that I have: Generic Arduino Uno LM1117 (voltage regulator) FTDIRL (usb to serial adapter) nRF24L01 module (2. More things on board than you need Just dont use them. No more wire messy Arduino projects. Step 5: Run Hello World Container.A board that with ATmega328P, 16 Mhz, UNO Bootloader and the most common hardware. We often want to read sensors data to monitor various values such as temperature, humidity, gas concentration, luminosity and etc.4GHz RF Transceiver module with Arduino UNO and Raspberry Pi to establish a wireless communication between them. Parts List nRF24L01+ DHT11 Temperature and Humidity Sensor I2C LCD display 16×2 Arduino UNO 4.7k resistor Library nRF24L01 Library RF24 Library DHT11 Library LiquidCrystalI2C Library Wire Library Wiring Wire nRF24L01+ to Arduino UNO GND GND VCC Arduino 3.3V CE Arduino pin 9 CSN Arduino pin 10 SCK Arduino pin 13 Continue reading 'Arduino Wireless Temperature LCD Display.
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Nrf24L01 Arduino Uno Hello World Download The Schematic
Download the schematic in PCBGOGO Download Link.After assembling the base and sensor circuits, we will program them. You can download the schematic in PCBGOGO Download Link.Both buttons are activated at a low logic level when the buttons are pressed.The LCD display used has I2C communication because using this communication we save pins from the microcontroller used since the I2C communication uses only 4 wires to communicate with the VCC, GND, SDA, and SCL microcontroller.Now, let's go to the list of components needed to assemble the base module circuitThe Tx pin of the HC 12 module is connected to the digital pin 8 of the Arduino and the RX pin of the HC 12 module is connected to the digital pin 7 of the Arduino Uno.We will use a library called Serial software to configure these pins 7 and 8 as serial communication pins, that is, we will emulate serial communication by software.The HC 12 connection on the Arduino Nano that will be the sensor is the same as the base circuit, the difference will be the presence of the LEDs on digital pins 4 and 3 and the presence of the DHT 22/DHT 11 sensor.For the DHT 11 sensor to work, it is necessary to place a pull-up resistor between the data pin and the VCC supply according to the circuit in figure 9.
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