Other micro-controller uses 5v as standard input voltage, many latest device modules, popular sensors, GPS, RF modules, Flash Memories, SPI storage, Display, use 3 to 3.3v most of this devices requires logic level conversion to protect them from high voltage
Wiring the PCF8591 Digital to Analog Conversion with Microcontroller
This is the PCF8591 a single chip single supply, low power 8bit CMOS data acquisition device with four analog inputs. 1 analog output and i2c Serial communication bus interface that allows the connection to be connected in series integrated bus
Wiring the ADS1115 Analog to Digital Converter with Thermistor on Microcontroller
The ADS1115 is a device that converts Analog to Digital (ADC) driven by i2C Protocol, ADS1115 is a precision analog to digital converter with 16bits of resolution in an ultra-small leadless (QFN) and on a MSPO-10 package. The ADS1115 are