This is another example using a sensor from the 37 sensor kit, this time we use the one called the KY-033 Hunt sensor module. A more correct name would be …
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AM2301 output calibrated digital signal. It applys exclusive digital-signal-collecting-technique and humidity sensing technology, assuring its reliability and stability. Its sensing elements is connected with 8-bit single-chip computer. Every sensor of …
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In this example we will connect an RFID-RC522 module and connect to an ESP32 Wemos LOLIN32 The microcontroller and card reader uses SPI for communication . The card reader and …
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In this article, we are going to interface a Soil moisture sensor with an ESP8266. This sensor measures the volumetric content of water inside the soil and gives us the …
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In this example we connect an SD card to our ESP32, we will log analog readings to a file on the SD card. Here is our micro sd module Here …
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In this example we take a look at the MAX6675 Cold-Junction-Compensated K-Thermocouple-to-Digital Converter The MAX6675 performs cold-junction compensation and digitizes the signal from a type-K thermocouple. The data is output in …
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The is a 16-bit, general purpose parallel I/O port expander for I2C bus applications. The 16-bit I/O port functionally consists of two 8-bit ports (PORTA and PORTB). The MCP23017 can …
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In this example we will interface to an I2C LCD using our ESP32. Now these I2C LCD’s consist of 2 parts usually an HD44780 16×2 LCD and an I2C backpack which …
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MCP9808 digital temperature sensor example The MCP9808 digital temperature sensor converts temperatures between -20°C and +100°C to a digital word with ±0.5°C (max.) accuracy. The MCP9808 comes with user-programmable registers …
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The HDC1000 is a digital humidity sensor with integrated temperature sensor that provides excellent measurement accuracy at very low power. The device measures humidity based on a novel capacitive sensor. …
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B4R is a development tool that I had not heard of before until today, it is from the makers of basic4Android a development tool that I have heard of. You …
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In this example we look at how to connect an IR Reciever. Generally, they require Vcc(5v), GND and there is a data out which you connect to your Arduino. Here is a …