The Si7021 I2C Humidity and Temperature Sensor is a monolithic CMOS IC integrating humidity and temperature sensor elements, an analog-to-digital converter, signal processing, calibration data, and an I2C Interface. The patented use of industry-standard, low-K polymeric dielectrics for sensing humidity …

The SHT1x digital humidity sensor is a reflow solderable sensor. The SHT1x series consists of a low-cost version with the SHT10 humidity sensor, a standard version with the SHT11 humidity sensor, and a high-end version with the SHT15 humidity sensor. …

The PCF8563 is a CMOS Real-Time Clock (RTC) and calendar optimized for low power consumption. A programmable clock output, interrupt output, and voltage-low detector are also provided. All addresses and data are transferred serially via a two-line bidirectional I²C-bus. Maximum …

The DS3231 is a low-cost, extremely accurate I2C real-time clock (RTC) with an integrated temperature-compensated crystal oscillator (TCXO) and crystal. The device incorporates a battery input, and maintains accurate timekeeping when main power to the device is interrupted. Features Highly …

This is a 6-digit 7-segment LCD display module and this screen is already widely used in multimeter, electronic scales, electronic clock and ultrasonic distance measurement. It is suitable for Ar duino motherboard and the other 5V mcu, and it has …

Sampling sata is particularly useful for analog sensors such as an LDR or a thermistor You can change the amount of samples to take and the interval which is in millioseconds [codesyntax lang=”cpp”] int sampleData(int analogPin, int samples = 10, …

This Tracking Sensor for Arduino can detect the white lines in black and black lines in white. This particular module has 3 sensors Using infrared light detection, anti-interference ability Built-in LED indicator lights Sensor CTRT5000, high sensitivity, stable performance Operating …

the GP2Y0A21 is an infrared proximity sensor made by Sharp. Part # GP2Y0A21YK has an analog output that varies from 3.1V at 10cm to 0.4V at 80cm. The sensor has a Japanese Solderless Terminal (JST) Connector. FEATURES • Digital Output …

In this example we will take a look at another relay module, this time this one is called the 5 Volt 4 Channel Arduino Relay Module , here is a picture of the module This relay module provides four relays …

There are some situations where you need to save power when you are creating battery powered projects, the lowpower library is one solution (we will look at others later)   Code You will need to install the Lowpower library – …

In this code example we will take a look at the PS2 JOYSTICK SHIELD V2.0. The X-axis of the joystick is connected to pin A0 of Arduino, the Y-axis to pin A1, power supply to 5V and ground to GND. …

In this example we will connect a 4 channel relay shield to an Arduino Uno and control it via an infrared remote control. We will use keys 1 to 4 to control relay 1 to 4 and also use key …