Greetings.So this is the DIY Thermometer made entirely from scratch using a TTGO T display board and DS18B20 Temp sensor.A 3D Printed body is being used to hold everything together, for Version 1, I've made an exoskeleton-like body that holds a display on one side and a lithium cell on the other.This DIY Thermometer is easy to make and just uses a couple of components that we can easily get and replicate this device.This article is about the whole built Process of this device so let's get started.MATERIAL REQUIREDThese are the materials that were used in this built-TTGO T DISPLAYDS18B20 Sensor3D Printed PartsON OFF SWITCHLiPo CellBreadboard and jumper wiresCONCEPTDS18B20 is perfect for making a thermometer because of its shape so we designed a body that holds the TEMP sensor with the TTGO T Display board and lithium cell in a simple form factor.TTGO Board is added on one side and LiPi Cell is on the other.There's also a Switch for turning the setup ON or OFF.DS18B20 SensorThe DS18B20 digital thermometer provides 9-bit to 12-bit Celsius temperature measurements and has an alarm function with nonvolatile user-programmable upper and lower trigger points.The DS18B20 communicates over a 1-Wire bus that by definition requires only one data line (and ground) for communication with a central microcontroller.This sensor comes in two form factors, one that looks like a transistor and a probe-like device that we'll be using in this build.Check out its datasheet for more info about the sensor itself.