HTX Universal Measuring Wheel

Universal HTX measuring wheel, its functionality includes:

1. Linear measurements (on any curve)

2. Calculation of the diameter by measuring the perimeter

3. Tachometer

4. Thermometer

The device is intended for both professionals in the fields of construction, sewing, engineering and ordinary users. Its main advantage, in addition to many functions, is the ability to measure distance along any curve

1. Linear distance measurement

Measurement mode of the distance traveled by the wheel maximum 9999.99cm error 0.05 cm measurement step 0.1cm

2. Calculation of the diameter from the measured perimeter

We use the wheel to measure the perimeter of the pipe, shaft, etc. And we get the diameter value

3. Measurement of internal angles

For the correct measurement of the internal distance, the wheel error must be taken into account

4. Tachometer

The mode of measuring the speed on the shaft using the wheel the transmission of the rotation of the shaft, the speed of which must be measured on the wheel, the measurement ends at the press of a button or after 10 seconds

5.The thermometer is present in all modes

Button No. 1 (on the side of the case)-double press mode change simple press reset

Button No. 2 (under the display)-change the unit of measurement in-cm cm-in

Arduino Pro Mini/AtMega328p(in case you want to use custom PCB)

NTC100K thermistor

1Kohm Resistors *2

10Kohm Resistors *3

100Kohm Resisor *1

TP4056 charging module

LiPo Battery

SSD1306 Oled Display 128*64

Encoder

Switch Buttons *3

Slide Switch

in case you want to use custom PCB

LM7805CV

10 uF Capacitator

100nF Capacitator

Quarz cristal oscilator

micro usb for PCB's

And 3D printed Parts if you wish

As shown in schematic solder everything

In case you are not using custom PCB just solder it with wires

In case you are using custom PCB solder it as shown on the PCB

IMPORTANT buttons encoder slide switch and display will be integrated in 3D printed housing if you decided to make a husing so don't hurry to solder them take care that you will glue them into the housing or if you wish you can make the device just on the PCB and print only the Wheel

The wheel fits tightly onto the encoder and, together with the encoder, the firmware is loaded into the board into the lower part of the case and after installing the switch buttons and the USB port and battery (pre-soldered to the board), it is installed in the case, after which the display is installed in the cover and the NTC100k (thermal sensor) is output at the end of the cover, the housing is installed

In case you printed wheel glue the perimeter with rubber other variant is to make it of rubber

In case you are using the custom PCB on the board are special pins for programming anyway in both cases you need a usb-ttl and arduino IDE open the firmware and flash your device

https://github.com/ArturR0k3r/HTX

DONT FORGET TO DOWNLOAD FOLLOWING LIBRARIES

Adafruit_SSD1306-master

Encoder-master

VoltageReference-master

Adafruit-GFX-Library-master

and here is a video with all functions