Feature: 1. Digital Voltmeter: The module contains accuracy potentiometer, similar to the voltmeter experiment, with conversion start and stop control terminal 2. Easy to Lead Out: The input and output ports that need to be used are all easy to lead out with pin headers, and single +5V power supply is used for power supply 3. Selection: With single chip address selection, jumper caps can also be selected, and low power consumption, about 15mw 4. 8 Bit Resolution: This analog to digital conversion module has 8 input channels, 8 bit A D converter, that is, the resolution is 8 bit 5. Basic Specifications: This conversion time is 100 microseconds (clock is 640 KHZ), 130 microseconds (clock is 500 KHZ) Specification: Item Type: Analog to Digital Conversion Module Material: ABS Module Size: 5 x 3.5cm / 2.00 x 1.38in 1.8 input channels, 8 bit A D converter, that is the resolution is 8 bit 2. Has conversion start stop control terminal 3. Conversion Time: 100 Microseconds (Clock is 640 KHZ), 130 Microseconds (Clock is 500 KHZ) 4. Single +5V power supply 5. Operating Temperature Range: -40 ~ +85℃ 6. Low power consumption, about 15mw. Package List: 1 x Analog to Digital Conversion Module4 x Bolts4 x Nut Note: The analog input voltage range is 0~+5V, no zero and full scale calibration is required