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Flexible using
Module size : 138m * 56mm * 18
1pcs Liquid PH0-14 Value Detect Test Sensor Module with AT for Arduino
adjust the output voltage
Then you can set other functions by following the instructions
DFRobot Beetle (The Smallest Arduino) Dual Base Shield Flexible usingThe Beetle Arduino is one of the smallest Arduino compatible board. It derives its core notion from minimalism without compromising functionality. It comes with Atmel AtMega32u4 @16MHz clock time and has expanded amounts of interfaces: 10 digital pins, 5 analog pins, and 4 pwn pins. To further make it user friendly, it is compatible with Micro USB so that direct programming. The ATmega32U4 comes pre burned with a bootloader that allows you to upload
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