DS3231 RTC Module Features
DS3231 real time clock module features high accuracy and low power consumption. This RTC module maintains seconds, minutes, hours, day, date, month, and year information. In this module, the date is set based on whether the month is 29, 30 or 31 days, and also whether it is leap year or not. This module can be used in 12-hour and 24-hour formats.
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The DS3231 module is available in two different types on the market. There is actually no difference between the two ...
2.2 INCH Full Color TFT Display Features
The TFT display is a kind of liquid crystal display that is connected to each pixel using a transistor and it features low current consumption and backlight. This 2.2-inch full color LCD has a narrow PCB screen. The resolution is 320x280 pixels and it has a four-wire SPI interface and white backlight.This display also has a touch screen and SD card slot.
Note
The module voltage is 3.3 V and a voltage divider is required to interface it with Arduino.
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PN532 NFC RFID Module Features
If you are experienced in electronics, you have probably heard of RFID (radio-frequency-identification) and NFC (near-field-communication). PN532 module is a kind of RFID-NFC module that uses I2C, SPI and HSU protocols for communication. This module is based on NXP PN532 IC. The key features are:Support I2C, SPI, high-speed UART (HSU) protocolsPCB design for antennaCommunication distance: 5 to 7cmRFID reader and writer supports the following:Mifare 1K 4K, Ultralight and ...
GY-31 TCS3200 Color Sensor Features
The TCS3200 color sensor uses 64 photodiodes to detect color. The output of this sensor is a square wave. Color intensity is obtained directly from the frequency of the square wave. These 64 photodiodes consist of 16 diodes with red filter, 16 diodes with green filter, 16 diodes with blue filter and 16 transparent photodiodes without filter. All 16 diodes of each type are connected in parallel. To detect any color, the photodiodes corresponding to that color are activ...
AD8232 ECG Module Features
The AD8232 sensor can provide you to monitor electrocardiographic or ECG signals. Analyzing these signals prepares useful information about heart function, such as heartbeat rate, heart rhythm, and other information regarding the heart’s condition.
This module can be connected to a microcontroller on one side and to specific parts of body on the other side using 3 special electrodes. The signal received through the electrodes can be seen in the analog output of the sensor.
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LoRa SX1278 Transceiver Module Features
Electronic devices need to be connected wirelessly in so many cases. In these cases, Radio Frequency or RF equipments are used. RF modules include all radio waves that can travel different distances and reach the receiver according to their frequency and amplitude.
LoRa is a popular technology that is perfectly suitable for IoT projects with long distance communications. This module is an Ai-Thinker technology module which also produces ESP32 series. This module...
